TY  - THES
AU  - Lučić, Milica
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6318
AB  - Cilj ovoga istraživanja bio je unapređenje funkcionalnih i tehnoloških svojstava sušene konzumne i začinske paprike kroz primenu različitih predtretmana i metoda sušenja. Istraživanja su obuhvatila ispitivanje nutritivnih i antioksidativnih parametara svežih plodova i nutritivnih, antioksidativnih i fizičkih parametara prerađenih plodova konzumne i začinske paprike. Ispitan je uticaj različitih predtretmana, kao što su blanširanje, hemijski predtretman, ultrazvuk i njihove međusobne kombinacije. Dodatno, proučavan je i uticaj metoda sušenja - sušenje u tunelskoj sušari strujom toplog vazduha i sušenje postupkom liofilzacije. Glavni cilj je bio utvrđivanje najpogodnije kombinacije predtretmana i metoda sušenja za očuvanje nutritivnih, antioksidativnih i senzornih karakteristika sušene paprike. Frakcioni faktorijski dizajn je upotrebljen za proučavanje uticaja ovih faktora.
U okviru prvog dela istraživanja izvršena je analiza mineralnog sastava komercijalno dostupnih svežih i prerađenih paprika kao i analiza sadržaja vitamina C kod četiri sorte konzumne paprike u tri stepena zrelosti. Takođe je izvršena i procena dijetetskog unosa minerala i zdravstvenog rizika koji potiče od toksičnih elemenata usled konzumacije plodova paprike. Rezultati ovih analiza ukazali su da plodovi paprike ne predstavljaju značajan izvor minerala, gde količine prisutne u prosečnim porcijama za decu i odrasle nisu dovoljne za zadovoljenje preporučenih dnevnih potreba. Izuzetak su bili određeni kiseli i sveži plodovi koji predstavljaju značajniji izvor Cu, Cr i Mo. Analizom sadržaja minerala u tri stepena zrelosti kod sorte Kurtovska kapija zapaženo je da se sadržaj minerala kontinualno menja tokom sazrevanja ploda što se ogleda u višem usvajanju K, Zn, Mg, Cu, B i gotovo stalnoj cirkulaciji Mg i Fe do pune zrelosti ploda. Rezultati ispitivanja zdravstvenog rizika su ukazali da plodovi paprike i njihovi proizvodi ne nose zdravstveni rizik za decu i odrasle usled unosa toksišnih elemenata kao što su Al, Hg, Cd i As. Većina analiziranih paprika je bila odličan izvor vitamina C sa sadržajem L-askorbinske kiseline većim od 100 mg/100 g, što znači da konzumacijom 100 g sveže paprike može se zadovoljiti preporučeni dnevni unos vitamina C.
U drugom delu istraživanja izvršena je analiza uticaja određenih predtretmana na mineralni sastav, sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline. U prvoj seriji eksperimenata ispitivano je ispiranje makro-, mikro- i elemenata u tragovima tokom ultrazvučnog pretretmana u vodi i rastvoru sirćetne kiseline. Za ovaj set eksperimenata upotrebljeni su plodovi sorte Kurtovska kapija. Do najvećih gubitaka minerala je došlo tokom prerade zelenih plodova, dok je ultrazvučni predtretman sa sirćetnom kiselinom poboljšao ekstrakciju toksičnih elemenata kao što su Al, Hg i As. Iako je ultrazvučni predtretman u rastvoru sirćetne kiseline doprineo najvećem uklanjanju toksičnih elemenata istovremeno je uticao i na značajne gubitke Fe (do 77% ukupnog gvožđa). U drugoj seriji eksperimenata ispitivan je uticaj ultrazvučnog, hemijskog i toplotnog predtretmana na sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline kod začinske paprike. Najveći uticaj na sadržaj ukupnih fenolnih jedinjenja i L-askorbinske kiseline od primenjenih predtretmana imala je temperatura predtretmana, gde su više temperature izazvale veće gubitke (50 i 80 oC). Primenjeni predtretmani nisu značajno uticali na antioksidativnu aktivnost prethodno tretirane začinske paprike.
U trećem delu istraživanja izvršeno je ispitivanje uticaja primenjenih predtretmana i metoda sušenja na kvalitet sušene konzumne i začinske paprike. Kod sušene začinske paprike rađene su sledeće analize: mineralni sastav, sadržaj ukupnih polifenola, sadržaj ukupnih karotenoida, antioksidativna aktivnost, sadržaj L-askorbinske kiseline, boja (CIELab i ne-enzimatski indeks tamnjenja), tekstura, morfološke karakteristike i mikrobiološka aktivnost kod sušene začinske paprike, dok je kod sušene konzumne paprike ispitivan sadržaj L-askorbinske kiseline i mikrobiološka aktivnost. Cilj je bio da se utvrdi uticaj različitih faktora (vreme predtretmana, temperatura predtretmana, primenjeni aditiv, pH vrednost rastvora za predtretman, primena ultrazvuka, masa uzorka koji se tretira, veličina komadića i način sušenja) na navedene parametre kvaliteta sušene paprike. Nekoliko faktora je značajno uticalo na kvalitet sušene začinske paprike. Metod sušenja je značajno uticao na sadržaj ukupnih polifenola i L-askorbinske kiseline, crvenu
boju (parametar a*) i rehidrataciju (u početnim fazama rehidratacije). Vreme predtretmana je značajno uticalo na antioksidativnu aktivnost merenu FRAP testom, sadržaj L-askorbinske kiseline, parametre boje a*, C* i ne-enzimatski indeks tamnjenja. pH vrednost je imala značajan uticaj na teksturu sušenih komadića. Temperatura predtretmana je značajno uticala na sadržaj L-askorbinske kiseline. Analizom ukupnog kvaliteta, pomoću funkcije poželjnosti, koja objedinjuje sve odgovore sistema za sušenu začinsku papriku utvrđeno je da dva faktora imaju statistički značajan uticaj: ultrazvuči predtretman i vrsta primenjenog aditiva. Rezultat ove analize je ukazao da je ultrazvuk imao negativan uticaj na ukupan kvalitet sušene začinske paprike, dok je kalijum-metabisulfit bio bolji aditiv u odnosu na limunsku kiselinu. Kod plodova sušene začinske paprike utvrđeno je da metod sušenja ima statistički značajan uticaj na sadržaj L-askorbinske kiseline. Mikrobiološka analiza sušene konzumne paprike ukazala je na zadovoljavajući kvalitet svih uzoraka nakon primene predtretmana. Metod sušenja u tunelskoj sušari se pokazao kao najefikasniji za smanjenje mikrobiološke aktivnosti.
AB  - This thesis aimed to improve the functional and technological properties of dried bell and paprika peppers by applying different pretreatments and drying methods. The research included the examination of nutritional and antioxidant parameters of fresh peppers and nutritional, antioxidant, and physical parameters of the processed dried bell and paprika peppers. The influence of different pretreatments, such as blanching, chemical pretreatment, ultrasound and their combinations, was investigated. Additionally, the effect of drying methods was studied - drying in a tunnel dryer with hot air and freeze-drying. The main goal was to determine the most suitable combination of pretreatments and drying methods for the preservation of nutritional, antioxidant, and sensory properties of dried pepper. Fractional factorial designs were used to study the effects of these factors.
Within the first part of the research, the analysis of the mineral composition of commercially available fresh and processed peppers was performed, as well as the analysis of vitamin C content in four cultivars of bell peppers in three ripening stages. Dietary mineral intake and health risks assessment of toxic elements due to the consumption of pepper fruits were also evaluated. The results of these analyzes indicated that pepper fruits are not a significant source of minerals, where the amounts present in average portions for children and adults are not sufficient to meet the recommended daily needs. The exceptions were certain sour and fresh fruits, which are a significant source of Cu, Cr, and Mo. Analysis of mineral content in three ripening stages for the cultivar Kurtovska kapiya showed that the mineral content changes continuously during fruit ripening, which is reflected in higher absorption of K, Zn, Mg, Cu, B and almost constant circulation of Mg and Fe until full fruit maturity. The results of the health risk study indicated that pepper fruits and their products do not represent a health risk for children and adults due to the intake of toxic elements such as Al, Hg, Cd, and As. Most of the analyzed peppers were excellent sources of vitamin C with L-ascorbic content higher than 100 mg/100g, which means that eating 100 g of fresh pepper is enough to meet the recommended daily intake.
The second part of the study examined the effects of different pretreatments on mineral composition, total phenolics content, antioxidant activity, and L-ascorbic acid content. The first series of experiments investigated leaching of macro-, mirco- and trace elements during ultrasound pretreatment in water and acetic acid solution. The cultivar Kurtovska kapiya was used for this set of experiments. The highest leaching of elements occurred during the processing of green fruits, while ultrasonic pretreatment with acetic acid improved the extraction of toxic elements Al, Hg and As. Although ultrasonic pretreatment with acetic acid solution contributed to the highest removal of the toxic elements, it also caused a significant loss of Fe (up to 77% of total iron). The second series of experiments investigated the effects of ultrasonic, chemical, and thermal pretreatments on the total phenolics content, antioxidant activity, and L-ascorbic acid content of paprika pepper. The pretreatment temperature highly influenced the total phenolics and L-ascorbic acid content, with higher temperatures causing higher leaching of these compounds (50 and 80 oC). The applied pretreatments did not significantly affect the antioxidant activity of previously treated peppers.
The third part of the research investigated the effects of applied pretreatments and drying methods on dried paprika and bell pepper quality. For dried paprika peppers following analyses were performed: mineral composition, total phenolics content, total carotenoids content, antioxidant activity, L-ascorbic acid content, color (CIELab and non-enzymatic browning index), texture, morphological properties, and microbiological activity, while for dried bell peppers L-ascorbic acid content and microbiological activity were investigated. The aim was to determine the influence of various factors (pretreatment time, pretreatment temperature, applied additives, pH value of pretreatment solution, application of ultrasound, mass of the treated peppers, pieces size, and drying methods) on the mentioned parameters of dried pepper quality. Several factors significantly
influenced the quality of dried paprika peppers. The drying methods significantly affected total phenolics and L-ascorbic acid content, red color (parameter a*), and rehydration ratio (in the initial stages of rehydration). The pretreatment time significantly affected antioxidant activity measured by the FRAP test, L-ascorbic acid content, color parameters a*, C*, and non-enzymatic browning index. The pH value significantly affected the texture of the dried pepper. The pretreatment temperature significantly affected L-ascorbic acid content. The overall quality, studied by the desirability function, which combines all the responses for dried paprika pepper, showed that two factors have a statistically significant influence: the ultrasound pretreatment and the type of applied additive. This analysis indicated that ultrasound negatively affected the overall quality of dried paprika peppers, while potassium metabisulfite was a better additive than citric acid. The content of L-ascorbic acid of dried bell pepper was significant influence by the method of drying. Microbiological analysis of dried peppers indicated the satisfactory quality of all samples subjected to the pretreatments. The drying method in a tunnel dryer was the most effective for reducing microbiological activity.
T1  - Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike
T1  - Influence of ultrasound and heat pretreatment on technological and functional properties of dried bell and paprika pepper
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6318
ER  - 

@phdthesis{
author = "Lučić, Milica",
year = "2023",
abstract = "Cilj ovoga istraživanja bio je unapređenje funkcionalnih i tehnoloških svojstava sušene konzumne i začinske paprike kroz primenu različitih predtretmana i metoda sušenja. Istraživanja su obuhvatila ispitivanje nutritivnih i antioksidativnih parametara svežih plodova i nutritivnih, antioksidativnih i fizičkih parametara prerađenih plodova konzumne i začinske paprike. Ispitan je uticaj različitih predtretmana, kao što su blanširanje, hemijski predtretman, ultrazvuk i njihove međusobne kombinacije. Dodatno, proučavan je i uticaj metoda sušenja - sušenje u tunelskoj sušari strujom toplog vazduha i sušenje postupkom liofilzacije. Glavni cilj je bio utvrđivanje najpogodnije kombinacije predtretmana i metoda sušenja za očuvanje nutritivnih, antioksidativnih i senzornih karakteristika sušene paprike. Frakcioni faktorijski dizajn je upotrebljen za proučavanje uticaja ovih faktora.
U okviru prvog dela istraživanja izvršena je analiza mineralnog sastava komercijalno dostupnih svežih i prerađenih paprika kao i analiza sadržaja vitamina C kod četiri sorte konzumne paprike u tri stepena zrelosti. Takođe je izvršena i procena dijetetskog unosa minerala i zdravstvenog rizika koji potiče od toksičnih elemenata usled konzumacije plodova paprike. Rezultati ovih analiza ukazali su da plodovi paprike ne predstavljaju značajan izvor minerala, gde količine prisutne u prosečnim porcijama za decu i odrasle nisu dovoljne za zadovoljenje preporučenih dnevnih potreba. Izuzetak su bili određeni kiseli i sveži plodovi koji predstavljaju značajniji izvor Cu, Cr i Mo. Analizom sadržaja minerala u tri stepena zrelosti kod sorte Kurtovska kapija zapaženo je da se sadržaj minerala kontinualno menja tokom sazrevanja ploda što se ogleda u višem usvajanju K, Zn, Mg, Cu, B i gotovo stalnoj cirkulaciji Mg i Fe do pune zrelosti ploda. Rezultati ispitivanja zdravstvenog rizika su ukazali da plodovi paprike i njihovi proizvodi ne nose zdravstveni rizik za decu i odrasle usled unosa toksišnih elemenata kao što su Al, Hg, Cd i As. Većina analiziranih paprika je bila odličan izvor vitamina C sa sadržajem L-askorbinske kiseline većim od 100 mg/100 g, što znači da konzumacijom 100 g sveže paprike može se zadovoljiti preporučeni dnevni unos vitamina C.
U drugom delu istraživanja izvršena je analiza uticaja određenih predtretmana na mineralni sastav, sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline. U prvoj seriji eksperimenata ispitivano je ispiranje makro-, mikro- i elemenata u tragovima tokom ultrazvučnog pretretmana u vodi i rastvoru sirćetne kiseline. Za ovaj set eksperimenata upotrebljeni su plodovi sorte Kurtovska kapija. Do najvećih gubitaka minerala je došlo tokom prerade zelenih plodova, dok je ultrazvučni predtretman sa sirćetnom kiselinom poboljšao ekstrakciju toksičnih elemenata kao što su Al, Hg i As. Iako je ultrazvučni predtretman u rastvoru sirćetne kiseline doprineo najvećem uklanjanju toksičnih elemenata istovremeno je uticao i na značajne gubitke Fe (do 77% ukupnog gvožđa). U drugoj seriji eksperimenata ispitivan je uticaj ultrazvučnog, hemijskog i toplotnog predtretmana na sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline kod začinske paprike. Najveći uticaj na sadržaj ukupnih fenolnih jedinjenja i L-askorbinske kiseline od primenjenih predtretmana imala je temperatura predtretmana, gde su više temperature izazvale veće gubitke (50 i 80 oC). Primenjeni predtretmani nisu značajno uticali na antioksidativnu aktivnost prethodno tretirane začinske paprike.
U trećem delu istraživanja izvršeno je ispitivanje uticaja primenjenih predtretmana i metoda sušenja na kvalitet sušene konzumne i začinske paprike. Kod sušene začinske paprike rađene su sledeće analize: mineralni sastav, sadržaj ukupnih polifenola, sadržaj ukupnih karotenoida, antioksidativna aktivnost, sadržaj L-askorbinske kiseline, boja (CIELab i ne-enzimatski indeks tamnjenja), tekstura, morfološke karakteristike i mikrobiološka aktivnost kod sušene začinske paprike, dok je kod sušene konzumne paprike ispitivan sadržaj L-askorbinske kiseline i mikrobiološka aktivnost. Cilj je bio da se utvrdi uticaj različitih faktora (vreme predtretmana, temperatura predtretmana, primenjeni aditiv, pH vrednost rastvora za predtretman, primena ultrazvuka, masa uzorka koji se tretira, veličina komadića i način sušenja) na navedene parametre kvaliteta sušene paprike. Nekoliko faktora je značajno uticalo na kvalitet sušene začinske paprike. Metod sušenja je značajno uticao na sadržaj ukupnih polifenola i L-askorbinske kiseline, crvenu
boju (parametar a*) i rehidrataciju (u početnim fazama rehidratacije). Vreme predtretmana je značajno uticalo na antioksidativnu aktivnost merenu FRAP testom, sadržaj L-askorbinske kiseline, parametre boje a*, C* i ne-enzimatski indeks tamnjenja. pH vrednost je imala značajan uticaj na teksturu sušenih komadića. Temperatura predtretmana je značajno uticala na sadržaj L-askorbinske kiseline. Analizom ukupnog kvaliteta, pomoću funkcije poželjnosti, koja objedinjuje sve odgovore sistema za sušenu začinsku papriku utvrđeno je da dva faktora imaju statistički značajan uticaj: ultrazvuči predtretman i vrsta primenjenog aditiva. Rezultat ove analize je ukazao da je ultrazvuk imao negativan uticaj na ukupan kvalitet sušene začinske paprike, dok je kalijum-metabisulfit bio bolji aditiv u odnosu na limunsku kiselinu. Kod plodova sušene začinske paprike utvrđeno je da metod sušenja ima statistički značajan uticaj na sadržaj L-askorbinske kiseline. Mikrobiološka analiza sušene konzumne paprike ukazala je na zadovoljavajući kvalitet svih uzoraka nakon primene predtretmana. Metod sušenja u tunelskoj sušari se pokazao kao najefikasniji za smanjenje mikrobiološke aktivnosti., This thesis aimed to improve the functional and technological properties of dried bell and paprika peppers by applying different pretreatments and drying methods. The research included the examination of nutritional and antioxidant parameters of fresh peppers and nutritional, antioxidant, and physical parameters of the processed dried bell and paprika peppers. The influence of different pretreatments, such as blanching, chemical pretreatment, ultrasound and their combinations, was investigated. Additionally, the effect of drying methods was studied - drying in a tunnel dryer with hot air and freeze-drying. The main goal was to determine the most suitable combination of pretreatments and drying methods for the preservation of nutritional, antioxidant, and sensory properties of dried pepper. Fractional factorial designs were used to study the effects of these factors.
Within the first part of the research, the analysis of the mineral composition of commercially available fresh and processed peppers was performed, as well as the analysis of vitamin C content in four cultivars of bell peppers in three ripening stages. Dietary mineral intake and health risks assessment of toxic elements due to the consumption of pepper fruits were also evaluated. The results of these analyzes indicated that pepper fruits are not a significant source of minerals, where the amounts present in average portions for children and adults are not sufficient to meet the recommended daily needs. The exceptions were certain sour and fresh fruits, which are a significant source of Cu, Cr, and Mo. Analysis of mineral content in three ripening stages for the cultivar Kurtovska kapiya showed that the mineral content changes continuously during fruit ripening, which is reflected in higher absorption of K, Zn, Mg, Cu, B and almost constant circulation of Mg and Fe until full fruit maturity. The results of the health risk study indicated that pepper fruits and their products do not represent a health risk for children and adults due to the intake of toxic elements such as Al, Hg, Cd, and As. Most of the analyzed peppers were excellent sources of vitamin C with L-ascorbic content higher than 100 mg/100g, which means that eating 100 g of fresh pepper is enough to meet the recommended daily intake.
The second part of the study examined the effects of different pretreatments on mineral composition, total phenolics content, antioxidant activity, and L-ascorbic acid content. The first series of experiments investigated leaching of macro-, mirco- and trace elements during ultrasound pretreatment in water and acetic acid solution. The cultivar Kurtovska kapiya was used for this set of experiments. The highest leaching of elements occurred during the processing of green fruits, while ultrasonic pretreatment with acetic acid improved the extraction of toxic elements Al, Hg and As. Although ultrasonic pretreatment with acetic acid solution contributed to the highest removal of the toxic elements, it also caused a significant loss of Fe (up to 77% of total iron). The second series of experiments investigated the effects of ultrasonic, chemical, and thermal pretreatments on the total phenolics content, antioxidant activity, and L-ascorbic acid content of paprika pepper. The pretreatment temperature highly influenced the total phenolics and L-ascorbic acid content, with higher temperatures causing higher leaching of these compounds (50 and 80 oC). The applied pretreatments did not significantly affect the antioxidant activity of previously treated peppers.
The third part of the research investigated the effects of applied pretreatments and drying methods on dried paprika and bell pepper quality. For dried paprika peppers following analyses were performed: mineral composition, total phenolics content, total carotenoids content, antioxidant activity, L-ascorbic acid content, color (CIELab and non-enzymatic browning index), texture, morphological properties, and microbiological activity, while for dried bell peppers L-ascorbic acid content and microbiological activity were investigated. The aim was to determine the influence of various factors (pretreatment time, pretreatment temperature, applied additives, pH value of pretreatment solution, application of ultrasound, mass of the treated peppers, pieces size, and drying methods) on the mentioned parameters of dried pepper quality. Several factors significantly
influenced the quality of dried paprika peppers. The drying methods significantly affected total phenolics and L-ascorbic acid content, red color (parameter a*), and rehydration ratio (in the initial stages of rehydration). The pretreatment time significantly affected antioxidant activity measured by the FRAP test, L-ascorbic acid content, color parameters a*, C*, and non-enzymatic browning index. The pH value significantly affected the texture of the dried pepper. The pretreatment temperature significantly affected L-ascorbic acid content. The overall quality, studied by the desirability function, which combines all the responses for dried paprika pepper, showed that two factors have a statistically significant influence: the ultrasound pretreatment and the type of applied additive. This analysis indicated that ultrasound negatively affected the overall quality of dried paprika peppers, while potassium metabisulfite was a better additive than citric acid. The content of L-ascorbic acid of dried bell pepper was significant influence by the method of drying. Microbiological analysis of dried peppers indicated the satisfactory quality of all samples subjected to the pretreatments. The drying method in a tunnel dryer was the most effective for reducing microbiological activity.",
title = "Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike, Influence of ultrasound and heat pretreatment on technological and functional properties of dried bell and paprika pepper",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6318"
}

Lučić, M.. (2023). Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike. .
https://hdl.handle.net/21.15107/rcub_technorep_6318

Lučić M. Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike. 2023;.
https://hdl.handle.net/21.15107/rcub_technorep_6318 .

Lučić, Milica, "Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike" (2023),
https://hdl.handle.net/21.15107/rcub_technorep_6318 .

TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Stanić, Vojislav Đ.
AU  - Nastasijević, Branislav J.
AU  - Radotić, Ksenija
AU  - Janković-Častvan, Ivona
AU  - Živković-Radovanović, Vukosava
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5664
AB  - Nanomaterials based on metal–doped fluorapatite (FAP) have attracted considerable interest as potential next–generation antimicrobial agents. In this study, Cu2+–doped FAP nanocrystals have been successfully synthesized by a neutralization method at room temperature. Their structural, optical, antimicrobial, and hemcompatible properties have been investigated. XRD, FTIR, FESEM, and N2 adsorption–desorption studies indicate the formation of single–phase FAP mesoporous nanopowders, composed of rod–like particles. TEM images confirmed the formation of nanorodes with a length of 60 nm and a width of about 18 nm. Rietveld analysis shows that the Cu2+ ions preferentially substitute Ca2 (6 h) sites in the hexagonal fluorapatite crystal structure. Fluorescence spectroscopy accompanied by MCR–ALS method confirms substitution of Cu2+ ions in FAP crystal lattice with extracting additional d–d band transition at green color from FAP broadband self–activated luminescence in violet–blue color. Antimicrobial studies conducted on Staphylococcus aureus, Escherichia coli and Micrococcus lysodeikticus showed that FAP nanopowder with the highest Cu2+ content have strong bacteriostatic action on Staphylococcus aureus bacterial strain in mediums containing nutrition matters. In addition, this sample in comparison to pure FAP achieved a high percentage of relative reduction of bacterial population for all three species, being >90% in most cases. Fungistatic action is noticed too, throwgh the slowing down mycelium growth of fungus Aspergillus niger, Aspergillus flavus and Penicillium roqueforti and reduction of sporulation of Aspergillus niger species. Cu2+–doped FAP nanocrystals shows a synergistic antimicrobial effect with Cu2+ and F− ions. Concerning the potential biomedical applications, the hemolysis ratios of the Cu2+–doped FAP samples were below 5%. The obtained results pointed out the possible use of the synthesized nanocrystals as broad–spectrum antimicrobial agents for various biomedical and health care preparations.
PB  - Elsevier B.V.
T2  - Journal of Photochemistry and Photobiology B: Biology
T1  - Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents
SP  - 112649
VL  - 239
DO  - 10.1016/j.jphotobiol.2023.112649
ER  - 

@article{
author = "Milojkov, Dušan V. and Radosavljević-Mihajlović, Ana S. and Stanić, Vojislav Đ. and Nastasijević, Branislav J. and Radotić, Ksenija and Janković-Častvan, Ivona and Živković-Radovanović, Vukosava",
year = "2023",
abstract = "Nanomaterials based on metal–doped fluorapatite (FAP) have attracted considerable interest as potential next–generation antimicrobial agents. In this study, Cu2+–doped FAP nanocrystals have been successfully synthesized by a neutralization method at room temperature. Their structural, optical, antimicrobial, and hemcompatible properties have been investigated. XRD, FTIR, FESEM, and N2 adsorption–desorption studies indicate the formation of single–phase FAP mesoporous nanopowders, composed of rod–like particles. TEM images confirmed the formation of nanorodes with a length of 60 nm and a width of about 18 nm. Rietveld analysis shows that the Cu2+ ions preferentially substitute Ca2 (6 h) sites in the hexagonal fluorapatite crystal structure. Fluorescence spectroscopy accompanied by MCR–ALS method confirms substitution of Cu2+ ions in FAP crystal lattice with extracting additional d–d band transition at green color from FAP broadband self–activated luminescence in violet–blue color. Antimicrobial studies conducted on Staphylococcus aureus, Escherichia coli and Micrococcus lysodeikticus showed that FAP nanopowder with the highest Cu2+ content have strong bacteriostatic action on Staphylococcus aureus bacterial strain in mediums containing nutrition matters. In addition, this sample in comparison to pure FAP achieved a high percentage of relative reduction of bacterial population for all three species, being >90% in most cases. Fungistatic action is noticed too, throwgh the slowing down mycelium growth of fungus Aspergillus niger, Aspergillus flavus and Penicillium roqueforti and reduction of sporulation of Aspergillus niger species. Cu2+–doped FAP nanocrystals shows a synergistic antimicrobial effect with Cu2+ and F− ions. Concerning the potential biomedical applications, the hemolysis ratios of the Cu2+–doped FAP samples were below 5%. The obtained results pointed out the possible use of the synthesized nanocrystals as broad–spectrum antimicrobial agents for various biomedical and health care preparations.",
publisher = "Elsevier B.V.",
journal = "Journal of Photochemistry and Photobiology B: Biology",
title = "Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents",
pages = "112649",
volume = "239",
doi = "10.1016/j.jphotobiol.2023.112649"
}

Milojkov, D. V., Radosavljević-Mihajlović, A. S., Stanić, V. Đ., Nastasijević, B. J., Radotić, K., Janković-Častvan, I.,& Živković-Radovanović, V.. (2023). Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents. in Journal of Photochemistry and Photobiology B: Biology
Elsevier B.V.., 239, 112649.
https://doi.org/10.1016/j.jphotobiol.2023.112649

Milojkov DV, Radosavljević-Mihajlović AS, Stanić VĐ, Nastasijević BJ, Radotić K, Janković-Častvan I, Živković-Radovanović V. Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents. in Journal of Photochemistry and Photobiology B: Biology. 2023;239:112649.
doi:10.1016/j.jphotobiol.2023.112649 .

Milojkov, Dušan V., Radosavljević-Mihajlović, Ana S., Stanić, Vojislav Đ., Nastasijević, Branislav J., Radotić, Ksenija, Janković-Častvan, Ivona, Živković-Radovanović, Vukosava, "Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents" in Journal of Photochemistry and Photobiology B: Biology, 239 (2023):112649,
https://doi.org/10.1016/j.jphotobiol.2023.112649 . .

TY  - JOUR
AU  - Katnić, Đurica
AU  - Marinović-Cincović, Milena
AU  - Porobić, Slavica J.
AU  - Vujčić, Ivica
AU  - Šaponjić, Aleksandra
AU  - Sikirić, Biljana
AU  - Živojinović, Dragana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5107
AB  - Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.
PB  - Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass
SP  - 131637
VL  - 352
DO  - 10.1016/j.jclepro.2022.131637
ER  - 

@article{
author = "Katnić, Đurica and Marinović-Cincović, Milena and Porobić, Slavica J. and Vujčić, Ivica and Šaponjić, Aleksandra and Sikirić, Biljana and Živojinović, Dragana",
year = "2022",
abstract = "Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.",
publisher = "Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass",
pages = "131637",
volume = "352",
doi = "10.1016/j.jclepro.2022.131637"
}

Katnić, Đ., Marinović-Cincović, M., Porobić, S. J., Vujčić, I., Šaponjić, A., Sikirić, B.,& Živojinović, D.. (2022). Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production
Elsevier Ltd., 352, 131637.
https://doi.org/10.1016/j.jclepro.2022.131637

Katnić Đ, Marinović-Cincović M, Porobić SJ, Vujčić I, Šaponjić A, Sikirić B, Živojinović D. Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production. 2022;352:131637.
doi:10.1016/j.jclepro.2022.131637 .

Katnić, Đurica, Marinović-Cincović, Milena, Porobić, Slavica J., Vujčić, Ivica, Šaponjić, Aleksandra, Sikirić, Biljana, Živojinović, Dragana, "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass" in Journal of Cleaner Production, 352 (2022):131637,
https://doi.org/10.1016/j.jclepro.2022.131637 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Cabrera-Barjas, Gustavo
AU  - Onjia, Antonije
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5340
AB  - Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
T2  - Foods
T1  - Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications
IS  - 3
SP  - 360
VL  - 11
DO  - 10.3390/foods11030360
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Cabrera-Barjas, Gustavo and Onjia, Antonije",
year = "2022",
abstract = "Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
journal = "Foods",
title = "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications",
number = "3",
pages = "360",
volume = "11",
doi = "10.3390/foods11030360"
}

Nešić, A., Meseldžija, S., Cabrera-Barjas, G.,& Onjia, A.. (2022). Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods, 11(3), 360.
https://doi.org/10.3390/foods11030360

Nešić A, Meseldžija S, Cabrera-Barjas G, Onjia A. Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods. 2022;11(3):360.
doi:10.3390/foods11030360 .

Nešić, Aleksandra, Meseldžija, Slađana, Cabrera-Barjas, Gustavo, Onjia, Antonije, "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications" in Foods, 11, no. 3 (2022):360,
https://doi.org/10.3390/foods11030360 . .

TY  - JOUR
AU  - Cabrera-Barjas, Gustavo
AU  - Radovanović, Neda
AU  - Arrepol, Gaston Bravo
AU  - de la Torre, Alexander F.
AU  - Valdes, Oscar
AU  - Nesic, Aleksandra
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4785
AB  - The efficient use of waste from food processing industry is one of the innovative approaches within sustainable development, because it can be transferred into added value products, which could improve economic, energetic and environmental sectors. In this context, the squid pen waste from seafood industry was used as raw material to obtain nanofibrous beta-chitin films. In order to extend functionality of obtained films, elderberry extract obtained from biomass was added at different concentrations. The tensile strength of chitin-elderberry extract films was improved by 52%, elongation at break by 153% and water vapor barrier by 65%. The obtained material showed distinct color change when subjected to acidic or basic solutions. It was proven by CIELab color analysis that all color changes could be easily perceived visually. In addition, the obtained nanofibrous film was successfully used to monitor the freshness of Hake fish. Namely, when the film was introduced in a package that contained fresh fish, its color was efficiently changed within the time during the storage at 4 degrees C. The obtained results demonstrated that food processing waste could be efficiently valorized, and could give sustainable food package design as a spoilage indicator of high protein food.
T2  - International Journal of Biological Macromolecules
T1  - Valorization of food waste to produce intelligent nanofibrous beta-chitin films
EP  - 99
SP  - 92
VL  - 186
DO  - 10.1016/j.ijbiomac.2021.07.045
ER  - 

@article{
author = "Cabrera-Barjas, Gustavo and Radovanović, Neda and Arrepol, Gaston Bravo and de la Torre, Alexander F. and Valdes, Oscar and Nesic, Aleksandra",
year = "2021",
abstract = "The efficient use of waste from food processing industry is one of the innovative approaches within sustainable development, because it can be transferred into added value products, which could improve economic, energetic and environmental sectors. In this context, the squid pen waste from seafood industry was used as raw material to obtain nanofibrous beta-chitin films. In order to extend functionality of obtained films, elderberry extract obtained from biomass was added at different concentrations. The tensile strength of chitin-elderberry extract films was improved by 52%, elongation at break by 153% and water vapor barrier by 65%. The obtained material showed distinct color change when subjected to acidic or basic solutions. It was proven by CIELab color analysis that all color changes could be easily perceived visually. In addition, the obtained nanofibrous film was successfully used to monitor the freshness of Hake fish. Namely, when the film was introduced in a package that contained fresh fish, its color was efficiently changed within the time during the storage at 4 degrees C. The obtained results demonstrated that food processing waste could be efficiently valorized, and could give sustainable food package design as a spoilage indicator of high protein food.",
journal = "International Journal of Biological Macromolecules",
title = "Valorization of food waste to produce intelligent nanofibrous beta-chitin films",
pages = "99-92",
volume = "186",
doi = "10.1016/j.ijbiomac.2021.07.045"
}

Cabrera-Barjas, G., Radovanović, N., Arrepol, G. B., de la Torre, A. F., Valdes, O.,& Nesic, A.. (2021). Valorization of food waste to produce intelligent nanofibrous beta-chitin films. in International Journal of Biological Macromolecules, 186, 92-99.
https://doi.org/10.1016/j.ijbiomac.2021.07.045

Cabrera-Barjas G, Radovanović N, Arrepol GB, de la Torre AF, Valdes O, Nesic A. Valorization of food waste to produce intelligent nanofibrous beta-chitin films. in International Journal of Biological Macromolecules. 2021;186:92-99.
doi:10.1016/j.ijbiomac.2021.07.045 .

Cabrera-Barjas, Gustavo, Radovanović, Neda, Arrepol, Gaston Bravo, de la Torre, Alexander F., Valdes, Oscar, Nesic, Aleksandra, "Valorization of food waste to produce intelligent nanofibrous beta-chitin films" in International Journal of Biological Macromolecules, 186 (2021):92-99,
https://doi.org/10.1016/j.ijbiomac.2021.07.045 . .

TY  - JOUR
AU  - Meseldžija, Slađana
AU  - Petrović, Jelena
AU  - Onjia, Antonije
AU  - Volkov-Husović, Tatjana
AU  - Nešić, Aleksandra
AU  - Vukelić, Nikola
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4440
AB  - This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste
EP  - 1382
IS  - 10
SP  - 1371
VL  - 85
DO  - 10.2298/JSC200413030M
ER  - 

@article{
author = "Meseldžija, Slađana and Petrović, Jelena and Onjia, Antonije and Volkov-Husović, Tatjana and Nešić, Aleksandra and Vukelić, Nikola",
year = "2020",
abstract = "This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste",
pages = "1382-1371",
number = "10",
volume = "85",
doi = "10.2298/JSC200413030M"
}

Meseldžija, S., Petrović, J., Onjia, A., Volkov-Husović, T., Nešić, A.,& Vukelić, N.. (2020). Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 85(10), 1371-1382.
https://doi.org/10.2298/JSC200413030M

Meseldžija S, Petrović J, Onjia A, Volkov-Husović T, Nešić A, Vukelić N. Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society. 2020;85(10):1371-1382.
doi:10.2298/JSC200413030M .

Meseldžija, Slađana, Petrović, Jelena, Onjia, Antonije, Volkov-Husović, Tatjana, Nešić, Aleksandra, Vukelić, Nikola, "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste" in Journal of the Serbian Chemical Society, 85, no. 10 (2020):1371-1382,
https://doi.org/10.2298/JSC200413030M . .

TY  - CONF
AU  - Radomirović, Milena
AU  - Tanaskovski, Bojan
AU  - Mandić, Milica
AU  - Pezo, Lato
AU  - Maksin, Danijela
AU  - Onjia, Antonije
AU  - Stanković, Slavka
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7097
AB  - Ovo istraživanje sprovedeno je u Bokokotorskom zalivu radi procene kvaliteta površinskog
sedimenata, a time i stanja morske sredine. ED-XRF metodom elementarne analize određen
je sadržaj velikog broja elemenata i oksida u površinskim sedimentima uzorkovanih sa 12
lokacija u 2019. godini. Multivarijantnom statističkom analizom, kao što su analiza glavnih
komponenati (PCA) i klaster analiza (CA), urađena je analiza dobijenih podataka kako bi se
dobila sveobuhvatna raspodela ispitivanih elemenata po lokacijama u zalivu i njihovo poreklo,
kao i sličnosti/razlike grupa uzoraka u hemijskom sastavu.
AB  - This study was carried out in the Bay of Boka Kotor in order to assess the surface sediment
quality and thereby to evaluate the status of the marine environment. The method of
elementary analysis, ED-XRF was used to determine the content of elements and oxides in
surface sediments sampled at 12 stations in 2019. Multivariate statistical methods, such as
principal component analysis (PCA) and cluster analysis (CA) were used to analyse the data
in order to obtain a comprehensive distribution of the examined elements according to
locations in the bay, and their origin, as well as similarities/differences of samples in chemical
composition.
PB  - Beograd : Srpsko društvo za zaštitu voda
C3  - Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020
T1  - Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva
T1  - Spatial distribution and identification of elements and oxides in surface sediments of the Boka Kotor bay
EP  - 338
SP  - 333
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7097
ER  - 

@conference{
author = "Radomirović, Milena and Tanaskovski, Bojan and Mandić, Milica and Pezo, Lato and Maksin, Danijela and Onjia, Antonije and Stanković, Slavka",
year = "2020",
abstract = "Ovo istraživanje sprovedeno je u Bokokotorskom zalivu radi procene kvaliteta površinskog
sedimenata, a time i stanja morske sredine. ED-XRF metodom elementarne analize određen
je sadržaj velikog broja elemenata i oksida u površinskim sedimentima uzorkovanih sa 12
lokacija u 2019. godini. Multivarijantnom statističkom analizom, kao što su analiza glavnih
komponenati (PCA) i klaster analiza (CA), urađena je analiza dobijenih podataka kako bi se
dobila sveobuhvatna raspodela ispitivanih elemenata po lokacijama u zalivu i njihovo poreklo,
kao i sličnosti/razlike grupa uzoraka u hemijskom sastavu., This study was carried out in the Bay of Boka Kotor in order to assess the surface sediment
quality and thereby to evaluate the status of the marine environment. The method of
elementary analysis, ED-XRF was used to determine the content of elements and oxides in
surface sediments sampled at 12 stations in 2019. Multivariate statistical methods, such as
principal component analysis (PCA) and cluster analysis (CA) were used to analyse the data
in order to obtain a comprehensive distribution of the examined elements according to
locations in the bay, and their origin, as well as similarities/differences of samples in chemical
composition.",
publisher = "Beograd : Srpsko društvo za zaštitu voda",
journal = "Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020",
title = "Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva, Spatial distribution and identification of elements and oxides in surface sediments of the Boka Kotor bay",
pages = "338-333",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7097"
}

Radomirović, M., Tanaskovski, B., Mandić, M., Pezo, L., Maksin, D., Onjia, A.,& Stanković, S.. (2020). Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva. in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020
Beograd : Srpsko društvo za zaštitu voda., 333-338.
https://hdl.handle.net/21.15107/rcub_technorep_7097

Radomirović M, Tanaskovski B, Mandić M, Pezo L, Maksin D, Onjia A, Stanković S. Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva. in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020. 2020;:333-338.
https://hdl.handle.net/21.15107/rcub_technorep_7097 .

Radomirović, Milena, Tanaskovski, Bojan, Mandić, Milica, Pezo, Lato, Maksin, Danijela, Onjia, Antonije, Stanković, Slavka, "Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva" in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020 (2020):333-338,
https://hdl.handle.net/21.15107/rcub_technorep_7097 .

TY  - CONF
AU  - Radomirović, Milena
AU  - Tanaskovski, Bojan
AU  - Mandić, Milica
AU  - Mijatović, Nevenka
AU  - Cantaluppi, Chiara
AU  - Onjia, Antonije
AU  - Stanković, Slavka
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7098
AB  - Pored uticaja prirodnih i atmosferskih faktora, negativni antropogeni uticaj u području
jugoistočnog Jadrana je u porastu poslednjih decenija. Povišeni nivo teških metala akumulira
se u površinskom sedimentu usled taloženja suspendovanih materija različitog porekla. U
ovom radu ispitivan je površinski sediment Bokokotorskog zaliva usled mogućeg zagađenja
teškim metalima primenom faktora i indeksa ekološkog rizika (EF, CF, Igeo, RI), kao i procena
životne sredine i ekološkog statusa zaliva.
AB  - In addition to the influence of natural and atmospheric factors, negative anthropogenic
pressure in the area of the southeastern Adriatic have been increasing in recent decades.
Elevated level of heavy metals accumulate in the surface sediment due to the deposition of
suspended solids of different origin. In this paper, the surface sediment of the Boka Kotor Bay
was examined due to possible heavy metal pollution using environmental risk factors and
indices (EF, CF, Igeo, RI), as well as the assessment of the environment and the ecological
status of the bay.
PB  - Beograd : Srpsko društvo za zaštitu voda
C3  - Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020
T1  - Ekološka procena rizika u odnosu na teške metale u površinskomsedimentu Bokokotorskog zaliva
T1  - Ecological risk assessment of heavy metals in surface sediments of the Boka Kotor bay
EP  - 324
SP  - 317
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7098
ER  - 

@conference{
author = "Radomirović, Milena and Tanaskovski, Bojan and Mandić, Milica and Mijatović, Nevenka and Cantaluppi, Chiara and Onjia, Antonije and Stanković, Slavka",
year = "2020",
abstract = "Pored uticaja prirodnih i atmosferskih faktora, negativni antropogeni uticaj u području
jugoistočnog Jadrana je u porastu poslednjih decenija. Povišeni nivo teških metala akumulira
se u površinskom sedimentu usled taloženja suspendovanih materija različitog porekla. U
ovom radu ispitivan je površinski sediment Bokokotorskog zaliva usled mogućeg zagađenja
teškim metalima primenom faktora i indeksa ekološkog rizika (EF, CF, Igeo, RI), kao i procena
životne sredine i ekološkog statusa zaliva., In addition to the influence of natural and atmospheric factors, negative anthropogenic
pressure in the area of the southeastern Adriatic have been increasing in recent decades.
Elevated level of heavy metals accumulate in the surface sediment due to the deposition of
suspended solids of different origin. In this paper, the surface sediment of the Boka Kotor Bay
was examined due to possible heavy metal pollution using environmental risk factors and
indices (EF, CF, Igeo, RI), as well as the assessment of the environment and the ecological
status of the bay.",
publisher = "Beograd : Srpsko društvo za zaštitu voda",
journal = "Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020",
title = "Ekološka procena rizika u odnosu na teške metale u površinskomsedimentu Bokokotorskog zaliva, Ecological risk assessment of heavy metals in surface sediments of the Boka Kotor bay",
pages = "324-317",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7098"
}

Radomirović, M., Tanaskovski, B., Mandić, M., Mijatović, N., Cantaluppi, C., Onjia, A.,& Stanković, S.. (2020). Ekološka procena rizika u odnosu na teške metale u površinskomsedimentu Bokokotorskog zaliva. in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020
Beograd : Srpsko društvo za zaštitu voda., 317-324.
https://hdl.handle.net/21.15107/rcub_technorep_7098

Radomirović M, Tanaskovski B, Mandić M, Mijatović N, Cantaluppi C, Onjia A, Stanković S. Ekološka procena rizika u odnosu na teške metale u površinskomsedimentu Bokokotorskog zaliva. in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020. 2020;:317-324.
https://hdl.handle.net/21.15107/rcub_technorep_7098 .

Radomirović, Milena, Tanaskovski, Bojan, Mandić, Milica, Mijatović, Nevenka, Cantaluppi, Chiara, Onjia, Antonije, Stanković, Slavka, "Ekološka procena rizika u odnosu na teške metale u površinskomsedimentu Bokokotorskog zaliva" in Voda 2020 : zbornik radova 49. godišnje konferencije o aktuelnim problemima korišćenja i zaštite voda, Trebinje, 19-20. novembar 2020 (2020):317-324,
https://hdl.handle.net/21.15107/rcub_technorep_7098 .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Cabrera-Barjas, Gustavo
AU  - Dimitrijević-Branković, Suzana
AU  - Davidović, Slađana
AU  - Radovanović, Neda
AU  - Delattre, Cédric
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4479
AB  - The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.
PB  - MDPI, Basel
T2  - Molecules
T1  - Prospect of Polysaccharide-Based Materials as Advanced Food Packaging
IS  - 1
VL  - 25
DO  - 10.3390/molecules25010135
ER  - 

@article{
author = "Nešić, Aleksandra and Cabrera-Barjas, Gustavo and Dimitrijević-Branković, Suzana and Davidović, Slađana and Radovanović, Neda and Delattre, Cédric",
year = "2020",
abstract = "The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.",
publisher = "MDPI, Basel",
journal = "Molecules",
title = "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging",
number = "1",
volume = "25",
doi = "10.3390/molecules25010135"
}

Nešić, A., Cabrera-Barjas, G., Dimitrijević-Branković, S., Davidović, S., Radovanović, N.,& Delattre, C.. (2020). Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules
MDPI, Basel., 25(1).
https://doi.org/10.3390/molecules25010135

Nešić A, Cabrera-Barjas G, Dimitrijević-Branković S, Davidović S, Radovanović N, Delattre C. Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules. 2020;25(1).
doi:10.3390/molecules25010135 .

Nešić, Aleksandra, Cabrera-Barjas, Gustavo, Dimitrijević-Branković, Suzana, Davidović, Slađana, Radovanović, Neda, Delattre, Cédric, "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging" in Molecules, 25, no. 1 (2020),
https://doi.org/10.3390/molecules25010135 . .

TY  - JOUR
AU  - Čeliković, Igor T.
AU  - Pantelić, Gordana K.
AU  - Živanović, Miloš Z.
AU  - Vukanac, Ivana
AU  - Krneta-Nikolić, Jelena D.
AU  - Kandić, Aleksandar
AU  - Lončar, Boris B.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5891
AB  - The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which leads to a decrease in air exchange rate and consequently an increase in indoor radon concentration. In case of low exchange rates, dose caused by inhalation of radon and its progeny can exceed external dose originating from the radium content in the surrounding building material. In this paper, surface exhalation rates of radon ( 222 Rn) and thoron ( 220 Rn) from typical building materials used for construction and interior decoration of houses in Serbia were investigated. Surface exhalation rate measurements were performed using the closed-chamber method, while concentrations of radon and thoron in the chamber were continuously measured using an active device, RTM1688-2, produced by SARAD® GmbH. Finally, the impact of the replacement of windows on the indoor radon concentration was estimated.
T2  - Nukleonika
T1  - Radon and thoron exhalation rate measurements from building materials used in Serbia
EP  - 114
IS  - 2
SP  - 111
VL  - 65
DO  - 10.2478/nuka-2020-0017
ER  - 

@article{
author = "Čeliković, Igor T. and Pantelić, Gordana K. and Živanović, Miloš Z. and Vukanac, Ivana and Krneta-Nikolić, Jelena D. and Kandić, Aleksandar and Lončar, Boris B.",
year = "2020",
abstract = "The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which leads to a decrease in air exchange rate and consequently an increase in indoor radon concentration. In case of low exchange rates, dose caused by inhalation of radon and its progeny can exceed external dose originating from the radium content in the surrounding building material. In this paper, surface exhalation rates of radon ( 222 Rn) and thoron ( 220 Rn) from typical building materials used for construction and interior decoration of houses in Serbia were investigated. Surface exhalation rate measurements were performed using the closed-chamber method, while concentrations of radon and thoron in the chamber were continuously measured using an active device, RTM1688-2, produced by SARAD® GmbH. Finally, the impact of the replacement of windows on the indoor radon concentration was estimated.",
journal = "Nukleonika",
title = "Radon and thoron exhalation rate measurements from building materials used in Serbia",
pages = "114-111",
number = "2",
volume = "65",
doi = "10.2478/nuka-2020-0017"
}

Čeliković, I. T., Pantelić, G. K., Živanović, M. Z., Vukanac, I., Krneta-Nikolić, J. D., Kandić, A.,& Lončar, B. B.. (2020). Radon and thoron exhalation rate measurements from building materials used in Serbia. in Nukleonika, 65(2), 111-114.
https://doi.org/10.2478/nuka-2020-0017

Čeliković IT, Pantelić GK, Živanović MZ, Vukanac I, Krneta-Nikolić JD, Kandić A, Lončar BB. Radon and thoron exhalation rate measurements from building materials used in Serbia. in Nukleonika. 2020;65(2):111-114.
doi:10.2478/nuka-2020-0017 .

Čeliković, Igor T., Pantelić, Gordana K., Živanović, Miloš Z., Vukanac, Ivana, Krneta-Nikolić, Jelena D., Kandić, Aleksandar, Lončar, Boris B., "Radon and thoron exhalation rate measurements from building materials used in Serbia" in Nukleonika, 65, no. 2 (2020):111-114,
https://doi.org/10.2478/nuka-2020-0017 . .

TY  - JOUR
AU  - Todorović, Marija N.
AU  - Radenković, Mirjana B.
AU  - Onjia, Antonije
AU  - Ignjatović, Ljubiša M.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4514
AB  - Designated as the most harmful for health, PM(2.5)aerosol fraction was a subject of our study. It was collected for all four seasons during 2014/15 in the suburban area of Belgrade (Serbia) and analysed for Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br, As, Ba and Pb elements and for NH4+, NO(3)(-)and SO(4)(2-)ions by particle-induced X-ray emission and ion chromatography techniques, respectively. Obtained concentrations have been treated by a combination of several receptor-oriented models to reveal source contributions to the suburban PM(2.5)at different spatial scales. Applied positive matrix factorization analysis indicated five main groups of emission sources: biomass burning (14.5%), traffic (3.9%), regional combustion/secondary sulphates (28.8%), local combustion/secondary nitrates (29.7%) and soil (5.4%). Local heating units had been pointed out as dominant contributors by long-range transport and ground-wind circulation analyses. Air masses circulating over the Balkan Peninsula denoted regional emissions as responsible for the high concentrations of secondary sulphates. Local and long-range transport analyses combined suggested that the BB and the LC/NO(3)originated from the wider urban area. Several Saharan dust episodes were detected as well. Presented results might be a basis for the development of air pollution mitigation strategies in the continental Balkan area, considered one of the most polluted and under-investigated European regions.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Characterization of PM(2.5)sources in a Belgrade suburban area: a multi-scale receptor-oriented approach
EP  - 41730
IS  - 33
SP  - 41717
VL  - 27
DO  - 10.1007/s11356-020-10129-z
ER  - 

@article{
author = "Todorović, Marija N. and Radenković, Mirjana B. and Onjia, Antonije and Ignjatović, Ljubiša M.",
year = "2020",
abstract = "Designated as the most harmful for health, PM(2.5)aerosol fraction was a subject of our study. It was collected for all four seasons during 2014/15 in the suburban area of Belgrade (Serbia) and analysed for Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br, As, Ba and Pb elements and for NH4+, NO(3)(-)and SO(4)(2-)ions by particle-induced X-ray emission and ion chromatography techniques, respectively. Obtained concentrations have been treated by a combination of several receptor-oriented models to reveal source contributions to the suburban PM(2.5)at different spatial scales. Applied positive matrix factorization analysis indicated five main groups of emission sources: biomass burning (14.5%), traffic (3.9%), regional combustion/secondary sulphates (28.8%), local combustion/secondary nitrates (29.7%) and soil (5.4%). Local heating units had been pointed out as dominant contributors by long-range transport and ground-wind circulation analyses. Air masses circulating over the Balkan Peninsula denoted regional emissions as responsible for the high concentrations of secondary sulphates. Local and long-range transport analyses combined suggested that the BB and the LC/NO(3)originated from the wider urban area. Several Saharan dust episodes were detected as well. Presented results might be a basis for the development of air pollution mitigation strategies in the continental Balkan area, considered one of the most polluted and under-investigated European regions.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Characterization of PM(2.5)sources in a Belgrade suburban area: a multi-scale receptor-oriented approach",
pages = "41730-41717",
number = "33",
volume = "27",
doi = "10.1007/s11356-020-10129-z"
}

Todorović, M. N., Radenković, M. B., Onjia, A.,& Ignjatović, L. M.. (2020). Characterization of PM(2.5)sources in a Belgrade suburban area: a multi-scale receptor-oriented approach. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 27(33), 41717-41730.
https://doi.org/10.1007/s11356-020-10129-z

Todorović MN, Radenković MB, Onjia A, Ignjatović LM. Characterization of PM(2.5)sources in a Belgrade suburban area: a multi-scale receptor-oriented approach. in Environmental Science and Pollution Research. 2020;27(33):41717-41730.
doi:10.1007/s11356-020-10129-z .

Todorović, Marija N., Radenković, Mirjana B., Onjia, Antonije, Ignjatović, Ljubiša M., "Characterization of PM(2.5)sources in a Belgrade suburban area: a multi-scale receptor-oriented approach" in Environmental Science and Pollution Research, 27, no. 33 (2020):41717-41730,
https://doi.org/10.1007/s11356-020-10129-z . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Smičiklas, Ivana D.
AU  - Manić, Nebojša
AU  - Mraković, Ana
AU  - Mandić, Milica
AU  - Veljović, Đorđe
AU  - Jović, Mihajlo
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4469
AB  - Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 - 0.125 mm, 0.125-0.2 mm, and 0.2-1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 degrees C min(-1)). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors
VL  - 686
DO  - 10.1016/j.tca.2020.178568
ER  - 

@article{
author = "Janković, Bojan and Smičiklas, Ivana D. and Manić, Nebojša and Mraković, Ana and Mandić, Milica and Veljović, Đorđe and Jović, Mihajlo",
year = "2020",
abstract = "Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 - 0.125 mm, 0.125-0.2 mm, and 0.2-1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 degrees C min(-1)). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors",
volume = "686",
doi = "10.1016/j.tca.2020.178568"
}

Janković, B., Smičiklas, I. D., Manić, N., Mraković, A., Mandić, M., Veljović, Đ.,& Jović, M.. (2020). Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta
Elsevier, Amsterdam., 686.
https://doi.org/10.1016/j.tca.2020.178568

Janković B, Smičiklas ID, Manić N, Mraković A, Mandić M, Veljović Đ, Jović M. Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta. 2020;686.
doi:10.1016/j.tca.2020.178568 .

Janković, Bojan, Smičiklas, Ivana D., Manić, Nebojša, Mraković, Ana, Mandić, Milica, Veljović, Đorđe, Jović, Mihajlo, "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors" in Thermochimica Acta, 686 (2020),
https://doi.org/10.1016/j.tca.2020.178568 . .

TY  - JOUR
AU  - Rubinjoni, Luka
AU  - Stanković, Srboljub J.
AU  - Lončar, Boris
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4432
AB  - Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (theological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a Co-60 reference field positioned with a kerma air rate of 3.42 mGys(-1). The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Nuclear Technology & Radiation Protection
T1  - The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time
EP  - 153
IS  - 2
SP  - 150
VL  - 35
DO  - 10.2298/NTRP2002150R
ER  - 

@article{
author = "Rubinjoni, Luka and Stanković, Srboljub J. and Lončar, Boris",
year = "2020",
abstract = "Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (theological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a Co-60 reference field positioned with a kerma air rate of 3.42 mGys(-1). The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Nuclear Technology & Radiation Protection",
title = "The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time",
pages = "153-150",
number = "2",
volume = "35",
doi = "10.2298/NTRP2002150R"
}

Rubinjoni, L., Stanković, S. J.,& Lončar, B.. (2020). The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology & Radiation Protection
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 35(2), 150-153.
https://doi.org/10.2298/NTRP2002150R

Rubinjoni L, Stanković SJ, Lončar B. The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology & Radiation Protection. 2020;35(2):150-153.
doi:10.2298/NTRP2002150R .

Rubinjoni, Luka, Stanković, Srboljub J., Lončar, Boris, "The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time" in Nuclear Technology & Radiation Protection, 35, no. 2 (2020):150-153,
https://doi.org/10.2298/NTRP2002150R . .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Vukčević, Marija
AU  - Đurkić, Tatjana
AU  - Stanišić, Ivana
AU  - Bakić, Tamara
AU  - Radomirović, Milena
AU  - Onjia, Antonije
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7100
AB  - Rare earth metals are deemed to be the materials of future due to their numerous applications including medical diagnostics, nuclear facilities, petroleum industry, etc. In this paper, multi-walled carbon nanotubes, which possess unique physicochemical properties, were evaluated as sorbents for lanthanoid gadolinium from aqueous solutions. The pH-dependent sorption behavior of Gd was studied in the pH range from 3 to 11 at room temperature (298 K). Equilibrium data over a range of initial Gd concentrations of 5−50 mg L−1 was analyzed with Langmuir, Freundlich and Redlich-Peterson models. Sorption kinetics was fitted with the pseudo-first-order, the pseudo-second-order and fractional power kinetic models.
AB  - Retke zemlje se smatraju materijalima budućnosti zahvaljujući
svojim brojnim primenama, u koje spadaju medicinska dijagnostika, nuklearna
postrojenja, naftna industrija, itd. Višeslojne ugljenične nanotube, koje imaju
jedinstvena fizičko-hemijska svojstva, u ovom radu su ispitane kao sorbenti
lantanoida gadolinijuma iz vodenih rastvora. Zavisnost sorpcije Gd od pH ispitivana je u opsegu pH 3‒11 na sobnoj temperaturi (298 K). Ravnotežna sorpcija
u opsegu početnih koncentracija 5‒50 mg L−1
analizirana je Langmirovim,
Frojndlihovim i Redlih‒Petersonovim modelima. Kinetika sorpcije analizirana
je modelima pseudoprvog reda, pseudodrugog reda i frakcionog stepena.
PB  - Academy of Sciences and Arts of the Republic of Srpska
T2  - Contemporary Materials
T1  - Gadolinium sorption on multi-walled carbon nanotubes
T1  - Sorpcija gadolinijuma na višeslojnim ugljeničnim nanotubama
EP  - 46
IS  - 1
SP  - 35
VL  - 10
DO  - 10.7251/COMEN1901035M
ER  - 

@article{
author = "Maksin, Danijela and Vukčević, Marija and Đurkić, Tatjana and Stanišić, Ivana and Bakić, Tamara and Radomirović, Milena and Onjia, Antonije",
year = "2019",
abstract = "Rare earth metals are deemed to be the materials of future due to their numerous applications including medical diagnostics, nuclear facilities, petroleum industry, etc. In this paper, multi-walled carbon nanotubes, which possess unique physicochemical properties, were evaluated as sorbents for lanthanoid gadolinium from aqueous solutions. The pH-dependent sorption behavior of Gd was studied in the pH range from 3 to 11 at room temperature (298 K). Equilibrium data over a range of initial Gd concentrations of 5−50 mg L−1 was analyzed with Langmuir, Freundlich and Redlich-Peterson models. Sorption kinetics was fitted with the pseudo-first-order, the pseudo-second-order and fractional power kinetic models., Retke zemlje se smatraju materijalima budućnosti zahvaljujući
svojim brojnim primenama, u koje spadaju medicinska dijagnostika, nuklearna
postrojenja, naftna industrija, itd. Višeslojne ugljenične nanotube, koje imaju
jedinstvena fizičko-hemijska svojstva, u ovom radu su ispitane kao sorbenti
lantanoida gadolinijuma iz vodenih rastvora. Zavisnost sorpcije Gd od pH ispitivana je u opsegu pH 3‒11 na sobnoj temperaturi (298 K). Ravnotežna sorpcija
u opsegu početnih koncentracija 5‒50 mg L−1
analizirana je Langmirovim,
Frojndlihovim i Redlih‒Petersonovim modelima. Kinetika sorpcije analizirana
je modelima pseudoprvog reda, pseudodrugog reda i frakcionog stepena.",
publisher = "Academy of Sciences and Arts of the Republic of Srpska",
journal = "Contemporary Materials",
title = "Gadolinium sorption on multi-walled carbon nanotubes, Sorpcija gadolinijuma na višeslojnim ugljeničnim nanotubama",
pages = "46-35",
number = "1",
volume = "10",
doi = "10.7251/COMEN1901035M"
}

Maksin, D., Vukčević, M., Đurkić, T., Stanišić, I., Bakić, T., Radomirović, M.,& Onjia, A.. (2019). Gadolinium sorption on multi-walled carbon nanotubes. in Contemporary Materials
Academy of Sciences and Arts of the Republic of Srpska., 10(1), 35-46.
https://doi.org/10.7251/COMEN1901035M

Maksin D, Vukčević M, Đurkić T, Stanišić I, Bakić T, Radomirović M, Onjia A. Gadolinium sorption on multi-walled carbon nanotubes. in Contemporary Materials. 2019;10(1):35-46.
doi:10.7251/COMEN1901035M .

Maksin, Danijela, Vukčević, Marija, Đurkić, Tatjana, Stanišić, Ivana, Bakić, Tamara, Radomirović, Milena, Onjia, Antonije, "Gadolinium sorption on multi-walled carbon nanotubes" in Contemporary Materials, 10, no. 1 (2019):35-46,
https://doi.org/10.7251/COMEN1901035M . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Spasojević, Vojislav
AU  - Dapčević, Aleksandra
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir B.
AU  - Ranđelović, Danijela
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4179
AB  - Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Characterization of glycidyl methacrylate based magnetic nanocomposites
EP  - 35
IS  - 1
SP  - 25
VL  - 73
DO  - 10.2298/HEMIND181113006M
ER  - 

@article{
author = "Marković, Bojana M. and Spasojević, Vojislav and Dapčević, Aleksandra and Vuković, Zorica M. and Pavlović, Vladimir B. and Ranđelović, Danijela and Nastasović, Aleksandra",
year = "2019",
abstract = "Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Characterization of glycidyl methacrylate based magnetic nanocomposites",
pages = "35-25",
number = "1",
volume = "73",
doi = "10.2298/HEMIND181113006M"
}

Marković, B. M., Spasojević, V., Dapčević, A., Vuković, Z. M., Pavlović, V. B., Ranđelović, D.,& Nastasović, A.. (2019). Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(1), 25-35.
https://doi.org/10.2298/HEMIND181113006M

Marković BM, Spasojević V, Dapčević A, Vuković ZM, Pavlović VB, Ranđelović D, Nastasović A. Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija. 2019;73(1):25-35.
doi:10.2298/HEMIND181113006M .

Marković, Bojana M., Spasojević, Vojislav, Dapčević, Aleksandra, Vuković, Zorica M., Pavlović, Vladimir B., Ranđelović, Danijela, Nastasović, Aleksandra, "Characterization of glycidyl methacrylate based magnetic nanocomposites" in Hemijska industrija, 73, no. 1 (2019):25-35,
https://doi.org/10.2298/HEMIND181113006M . .

TY  - CONF
AU  - Janković-Mandić, Ljiljana
AU  - Dragović, Snežana D.
AU  - Ćujić, Mirjana
AU  - Petrović, Jelena
AU  - Onjia, Antonije
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4181
AB  - Određivanje sadržaja radionuklida u materijalima koji se koriste u građevinarstvu veoma je važno u cilju procene radiološkog uticaja na zdravlje ljudi. U radu su prikazani rezultati gamaspektrometrijskog merenja prirodnih radionuklida u 94 uzorka građevinskog materijala (drvo, pesak, šljunak, opeka, mermer, granit, beton, staklo) koji je u upotrebi u Srbiji. Uzorci su analizirani u periodu 2016-2019. godine i opseg izmerenih aktivnosti radionuklida bio je: 226Ra (5-180)Bq/kg, 232Th(8-260)Bq/kg40K, (20-1480)Bq/kg. Za sve materijale određen je gama indeks i rezultati su upoređeni sa relevantnim podacima iz literature i propisa.
AB  - Determination of radionuclides in building materialsis very important in order to assess the  radiological  impact  on  human  health.  The  paper  presents  the  results  of gamma  ray spectrometry measurement of natural radionuclides in 94 samples of building materials (wood, sand, gravel, brick, concrete,marble, granite, glass) collected from the territory of Serbia in the period from 2016 to 2019. The activity concentrations for 226Ra, 232Th and 40K  from  the  building  materials  ranged  from  (5-180)  Bq/kg, (8-260)  Bq/kg, (20-1480) Bq/kg, respectively.For all materials, a gamma index was determined and the results are compared with the relevant literature and regulation data.
PB  - Beograd : Institut za nuklearne nauke Vinča
PB  - Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - Zbornik radova / XXX simpozijum DZZSCG Društva za zaštitu od zračenja Srbije i Crne Gore, 2- 4. oktobar 2019. godine, Divčibare, Srbija
T1  - Prirodni radionuklidi u građevinskom materijalu u Srbiji
T1  - Natural radionuclides in building materials in Serbia
EP  - 167
SP  - 162
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8696
ER  - 

@conference{
author = "Janković-Mandić, Ljiljana and Dragović, Snežana D. and Ćujić, Mirjana and Petrović, Jelena and Onjia, Antonije",
year = "2019",
abstract = "Određivanje sadržaja radionuklida u materijalima koji se koriste u građevinarstvu veoma je važno u cilju procene radiološkog uticaja na zdravlje ljudi. U radu su prikazani rezultati gamaspektrometrijskog merenja prirodnih radionuklida u 94 uzorka građevinskog materijala (drvo, pesak, šljunak, opeka, mermer, granit, beton, staklo) koji je u upotrebi u Srbiji. Uzorci su analizirani u periodu 2016-2019. godine i opseg izmerenih aktivnosti radionuklida bio je: 226Ra (5-180)Bq/kg, 232Th(8-260)Bq/kg40K, (20-1480)Bq/kg. Za sve materijale određen je gama indeks i rezultati su upoređeni sa relevantnim podacima iz literature i propisa., Determination of radionuclides in building materialsis very important in order to assess the  radiological  impact  on  human  health.  The  paper  presents  the  results  of gamma  ray spectrometry measurement of natural radionuclides in 94 samples of building materials (wood, sand, gravel, brick, concrete,marble, granite, glass) collected from the territory of Serbia in the period from 2016 to 2019. The activity concentrations for 226Ra, 232Th and 40K  from  the  building  materials  ranged  from  (5-180)  Bq/kg, (8-260)  Bq/kg, (20-1480) Bq/kg, respectively.For all materials, a gamma index was determined and the results are compared with the relevant literature and regulation data.",
publisher = "Beograd : Institut za nuklearne nauke Vinča, Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "Zbornik radova / XXX simpozijum DZZSCG Društva za zaštitu od zračenja Srbije i Crne Gore, 2- 4. oktobar 2019. godine, Divčibare, Srbija",
title = "Prirodni radionuklidi u građevinskom materijalu u Srbiji, Natural radionuclides in building materials in Serbia",
pages = "167-162",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8696"
}

Janković-Mandić, L., Dragović, S. D., Ćujić, M., Petrović, J.,& Onjia, A.. (2019). Prirodni radionuklidi u građevinskom materijalu u Srbiji. in Zbornik radova / XXX simpozijum DZZSCG Društva za zaštitu od zračenja Srbije i Crne Gore, 2- 4. oktobar 2019. godine, Divčibare, Srbija
Beograd : Institut za nuklearne nauke Vinča., 162-167.
https://hdl.handle.net/21.15107/rcub_vinar_8696

Janković-Mandić L, Dragović SD, Ćujić M, Petrović J, Onjia A. Prirodni radionuklidi u građevinskom materijalu u Srbiji. in Zbornik radova / XXX simpozijum DZZSCG Društva za zaštitu od zračenja Srbije i Crne Gore, 2- 4. oktobar 2019. godine, Divčibare, Srbija. 2019;:162-167.
https://hdl.handle.net/21.15107/rcub_vinar_8696 .

Janković-Mandić, Ljiljana, Dragović, Snežana D., Ćujić, Mirjana, Petrović, Jelena, Onjia, Antonije, "Prirodni radionuklidi u građevinskom materijalu u Srbiji" in Zbornik radova / XXX simpozijum DZZSCG Društva za zaštitu od zračenja Srbije i Crne Gore, 2- 4. oktobar 2019. godine, Divčibare, Srbija (2019):162-167,
https://hdl.handle.net/21.15107/rcub_vinar_8696 .

TY  - JOUR
AU  - Meseldžija, Slađana
AU  - Petrović, Jelena
AU  - Onjia, Antonije
AU  - Volkov-Husović, Tatjana
AU  - Nešić, Aleksandra
AU  - Vukelić, Nikola
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4258
AB  - In this study, unmodified lemon peel, as agro-industrial waste, was used to investigate removal efficiency of copper ions from aqueous solutions and mining wastewater. The effects of solution pH, adsorption time, metal ion concentration and dose of adsorbent on sorption were studied in batch experiments. The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 min. The maximum removal of copper ions from mining-wastewater at natural pH (pH3) was 89%, indicating that lemon peel could be employed as an effective low-cost adsorbent for removal of copper ions from wastewater at acidic conditions.
PB  - Elsevier Science Inc, New York
T2  - Journal of Industrial and Engineering Chemistry
T1  - Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater
EP  - 252
SP  - 246
VL  - 75
DO  - 10.1016/j.jiec.2019.03.031
ER  - 

@article{
author = "Meseldžija, Slađana and Petrović, Jelena and Onjia, Antonije and Volkov-Husović, Tatjana and Nešić, Aleksandra and Vukelić, Nikola",
year = "2019",
abstract = "In this study, unmodified lemon peel, as agro-industrial waste, was used to investigate removal efficiency of copper ions from aqueous solutions and mining wastewater. The effects of solution pH, adsorption time, metal ion concentration and dose of adsorbent on sorption were studied in batch experiments. The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 min. The maximum removal of copper ions from mining-wastewater at natural pH (pH3) was 89%, indicating that lemon peel could be employed as an effective low-cost adsorbent for removal of copper ions from wastewater at acidic conditions.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater",
pages = "252-246",
volume = "75",
doi = "10.1016/j.jiec.2019.03.031"
}

Meseldžija, S., Petrović, J., Onjia, A., Volkov-Husović, T., Nešić, A.,& Vukelić, N.. (2019). Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater. in Journal of Industrial and Engineering Chemistry
Elsevier Science Inc, New York., 75, 246-252.
https://doi.org/10.1016/j.jiec.2019.03.031

Meseldžija S, Petrović J, Onjia A, Volkov-Husović T, Nešić A, Vukelić N. Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater. in Journal of Industrial and Engineering Chemistry. 2019;75:246-252.
doi:10.1016/j.jiec.2019.03.031 .

Meseldžija, Slađana, Petrović, Jelena, Onjia, Antonije, Volkov-Husović, Tatjana, Nešić, Aleksandra, Vukelić, Nikola, "Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater" in Journal of Industrial and Engineering Chemistry, 75 (2019):246-252,
https://doi.org/10.1016/j.jiec.2019.03.031 . .

TY  - JOUR
AU  - Pantić, Krstimir
AU  - Bajić, Zoran J.
AU  - Veličković, Zlate
AU  - Nesić, Jovica Z.
AU  - Đolić, Maja
AU  - Tomić, Nataša
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4071
AB  - This batch and column kinetics study of arsenic removal utilized copper-impregnated natural mineral tufa (T-Cu(A-C)) under three ranges of particle size. Non-competitive kinetic data fitted by the Weber-Morris model and the single resistance mass transfer model, i.e., mass transfer coefficient k(f)a and diffusion coefficient (D-eff) determination, defined intra-particle diffusion as the dominating rate controlling step. Kinetic activation parameters, derived from pseudo-second-order rate constants, showed low dependence on adsorbent geometry/morphology and porosity, while the diffusivity of the pores was significant to removal efficacy. The results of competitive arsenic adsorption in a multi-component system of phosphate, chromate, or silicate showed effective arsenic removal using T-Cu adsorbents. The high adsorption rate-pseudo-second-order constants in the range 0.509-0.789gmg(-1)min(-1) for As(V) and 0.304-0.532gmg(1)min(1) for As(III)-justified further application T-Cu(A-C) in a flow system. The fixed-bed column adsorption data was fitted using empirical Bohart-Adams, Yoon-Nelson, Thomas, and dose-response models to indicate capacities and breakthrough time dependence on arsenic influent concentration and the flow rate. Pore surface diffusion modeling (PSDM), following bed-column testing, further determined adsorbent capacities and mass transport under applied hydraulic loading rates.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study
EP  - 24161
IS  - 23
SP  - 24143
VL  - 26
DO  - 10.1007/s11356-019-05547-7
ER  - 

@article{
author = "Pantić, Krstimir and Bajić, Zoran J. and Veličković, Zlate and Nesić, Jovica Z. and Đolić, Maja and Tomić, Nataša and Marinković, Aleksandar",
year = "2019",
abstract = "This batch and column kinetics study of arsenic removal utilized copper-impregnated natural mineral tufa (T-Cu(A-C)) under three ranges of particle size. Non-competitive kinetic data fitted by the Weber-Morris model and the single resistance mass transfer model, i.e., mass transfer coefficient k(f)a and diffusion coefficient (D-eff) determination, defined intra-particle diffusion as the dominating rate controlling step. Kinetic activation parameters, derived from pseudo-second-order rate constants, showed low dependence on adsorbent geometry/morphology and porosity, while the diffusivity of the pores was significant to removal efficacy. The results of competitive arsenic adsorption in a multi-component system of phosphate, chromate, or silicate showed effective arsenic removal using T-Cu adsorbents. The high adsorption rate-pseudo-second-order constants in the range 0.509-0.789gmg(-1)min(-1) for As(V) and 0.304-0.532gmg(1)min(1) for As(III)-justified further application T-Cu(A-C) in a flow system. The fixed-bed column adsorption data was fitted using empirical Bohart-Adams, Yoon-Nelson, Thomas, and dose-response models to indicate capacities and breakthrough time dependence on arsenic influent concentration and the flow rate. Pore surface diffusion modeling (PSDM), following bed-column testing, further determined adsorbent capacities and mass transport under applied hydraulic loading rates.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study",
pages = "24161-24143",
number = "23",
volume = "26",
doi = "10.1007/s11356-019-05547-7"
}

Pantić, K., Bajić, Z. J., Veličković, Z., Nesić, J. Z., Đolić, M., Tomić, N.,& Marinković, A.. (2019). Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 26(23), 24143-24161.
https://doi.org/10.1007/s11356-019-05547-7

Pantić K, Bajić ZJ, Veličković Z, Nesić JZ, Đolić M, Tomić N, Marinković A. Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study. in Environmental Science and Pollution Research. 2019;26(23):24143-24161.
doi:10.1007/s11356-019-05547-7 .

Pantić, Krstimir, Bajić, Zoran J., Veličković, Zlate, Nesić, Jovica Z., Đolić, Maja, Tomić, Nataša, Marinković, Aleksandar, "Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study" in Environmental Science and Pollution Research, 26, no. 23 (2019):24143-24161,
https://doi.org/10.1007/s11356-019-05547-7 . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Milicić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4097
AB  - Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (approximate to 1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part B-Atomic Spectroscopy
T1  - Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites
SP  - 105729
VL  - 162
DO  - 10.1016/j.sab.2019.105729
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Milicić, Ljiljana and Živojinović, Dragana",
year = "2019",
abstract = "Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (approximate to 1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part B-Atomic Spectroscopy",
title = "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites",
pages = "105729",
volume = "162",
doi = "10.1016/j.sab.2019.105729"
}

Mijatović, N., Terzić, A., Pezo, L., Milicić, L.,& Živojinović, D.. (2019). Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta Part B-Atomic Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 162, 105729.
https://doi.org/10.1016/j.sab.2019.105729

Mijatović N, Terzić A, Pezo L, Milicić L, Živojinović D. Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta Part B-Atomic Spectroscopy. 2019;162:105729.
doi:10.1016/j.sab.2019.105729 .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Milicić, Ljiljana, Živojinović, Dragana, "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites" in Spectrochimica Acta Part B-Atomic Spectroscopy, 162 (2019):105729,
https://doi.org/10.1016/j.sab.2019.105729 . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Milicić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5039
AB  - Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (≈1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.
PB  - Elsevier B.V.
T2  - Spectrochimica Acta - Part B Atomic Spectroscopy
T1  - Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites
SP  - 105729
VL  - 162
DO  - 10.1016/j.sab.2019.105729
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Milicić, Ljiljana and Živojinović, Dragana",
year = "2019",
abstract = "Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (≈1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.",
publisher = "Elsevier B.V.",
journal = "Spectrochimica Acta - Part B Atomic Spectroscopy",
title = "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites",
pages = "105729",
volume = "162",
doi = "10.1016/j.sab.2019.105729"
}

Mijatović, N., Terzić, A., Pezo, L., Milicić, L.,& Živojinović, D.. (2019). Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta - Part B Atomic Spectroscopy
Elsevier B.V.., 162, 105729.
https://doi.org/10.1016/j.sab.2019.105729

Mijatović N, Terzić A, Pezo L, Milicić L, Živojinović D. Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta - Part B Atomic Spectroscopy. 2019;162:105729.
doi:10.1016/j.sab.2019.105729 .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Milicić, Ljiljana, Živojinović, Dragana, "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites" in Spectrochimica Acta - Part B Atomic Spectroscopy, 162 (2019):105729,
https://doi.org/10.1016/j.sab.2019.105729 . .

TY  - JOUR
AU  - Marković, Jelena P.
AU  - Jović, Mihajlo D.
AU  - Smičiklas, Ivana D.
AU  - Šljivić-Ivanović, Marija Z.
AU  - Onjia, Antonije
AU  - Trivunac, Katarina
AU  - Popović, Aleksandar R.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4166
AB  - As soil cadmium (Cd) contamination becomes a serious concern and one of the significant environmental pollution issues all over the world, knowledge of the basic chemistry, origin, inputs, sources, quantity, chemical forms, reactions, as well as the fate and transport of Cd in different types of soil is crucial for better understanding Cd bioavailability, health risks and remedial options. This study aimed to increase the current knowledge on the complex interdependence between the factors affecting behavior, transport and fate of Cd in the soil and to test and compare the performance of the stabilization agents in different soil types. Soils demonstrated various sorption affinity and capacity for Cd accumulation, which proved to be positively correlated with soil pH and the cation exchange capacity (CEC). With increasing levels of contamination, sequential extraction analysis showed the highest increase of relative Cd amounts in the exchangeable fraction regardless of the soil properties, suggesting that added Cd is principally associated with the easily accessible and mobile fraction. For different initial Cd concentrations and soil types, Cd sorption reached the quasi-equilibrium within 24 h of contact. Prolonged aging (two months) influenced the natural stabilization of Cd in all types of soil, but only at low contamination level. The application of both, conventional (slaked lime Ca(OH)(2)) and alternative phosphate-rich (annealed bovine bones B-400) amendments, resulted in Cd relocation and reduction of exchangeable Cd content. Although the effect was smaller when apatite amendment was utilized, observed redistribution of Cd to more stable soil fractions is preferable for achieving long-term stabilization. Cd concentrations extracted in exchangeable and acid soluble fractions after the treatments of contaminated soil samples suggest that the practical applicability of in situ immobilization depends on the soil properties and the level of contamination, as well as that effect, should be monitored for the possible re-mobilization of Cd.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Ecotoxicology and Environmental Safety
T1  - Cadmium retention and distribution in contaminated soil: effects and interactions of soil properties, contamination level, aging time and in situ immobilization agents
EP  - 314
SP  - 305
VL  - 174
DO  - 10.1016/j.ecoenv.2019.03.001
ER  - 

@article{
author = "Marković, Jelena P. and Jović, Mihajlo D. and Smičiklas, Ivana D. and Šljivić-Ivanović, Marija Z. and Onjia, Antonije and Trivunac, Katarina and Popović, Aleksandar R.",
year = "2019",
abstract = "As soil cadmium (Cd) contamination becomes a serious concern and one of the significant environmental pollution issues all over the world, knowledge of the basic chemistry, origin, inputs, sources, quantity, chemical forms, reactions, as well as the fate and transport of Cd in different types of soil is crucial for better understanding Cd bioavailability, health risks and remedial options. This study aimed to increase the current knowledge on the complex interdependence between the factors affecting behavior, transport and fate of Cd in the soil and to test and compare the performance of the stabilization agents in different soil types. Soils demonstrated various sorption affinity and capacity for Cd accumulation, which proved to be positively correlated with soil pH and the cation exchange capacity (CEC). With increasing levels of contamination, sequential extraction analysis showed the highest increase of relative Cd amounts in the exchangeable fraction regardless of the soil properties, suggesting that added Cd is principally associated with the easily accessible and mobile fraction. For different initial Cd concentrations and soil types, Cd sorption reached the quasi-equilibrium within 24 h of contact. Prolonged aging (two months) influenced the natural stabilization of Cd in all types of soil, but only at low contamination level. The application of both, conventional (slaked lime Ca(OH)(2)) and alternative phosphate-rich (annealed bovine bones B-400) amendments, resulted in Cd relocation and reduction of exchangeable Cd content. Although the effect was smaller when apatite amendment was utilized, observed redistribution of Cd to more stable soil fractions is preferable for achieving long-term stabilization. Cd concentrations extracted in exchangeable and acid soluble fractions after the treatments of contaminated soil samples suggest that the practical applicability of in situ immobilization depends on the soil properties and the level of contamination, as well as that effect, should be monitored for the possible re-mobilization of Cd.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Ecotoxicology and Environmental Safety",
title = "Cadmium retention and distribution in contaminated soil: effects and interactions of soil properties, contamination level, aging time and in situ immobilization agents",
pages = "314-305",
volume = "174",
doi = "10.1016/j.ecoenv.2019.03.001"
}

Marković, J. P., Jović, M. D., Smičiklas, I. D., Šljivić-Ivanović, M. Z., Onjia, A., Trivunac, K.,& Popović, A. R.. (2019). Cadmium retention and distribution in contaminated soil: effects and interactions of soil properties, contamination level, aging time and in situ immobilization agents. in Ecotoxicology and Environmental Safety
Academic Press Inc Elsevier Science, San Diego., 174, 305-314.
https://doi.org/10.1016/j.ecoenv.2019.03.001

Marković JP, Jović MD, Smičiklas ID, Šljivić-Ivanović MZ, Onjia A, Trivunac K, Popović AR. Cadmium retention and distribution in contaminated soil: effects and interactions of soil properties, contamination level, aging time and in situ immobilization agents. in Ecotoxicology and Environmental Safety. 2019;174:305-314.
doi:10.1016/j.ecoenv.2019.03.001 .

Marković, Jelena P., Jović, Mihajlo D., Smičiklas, Ivana D., Šljivić-Ivanović, Marija Z., Onjia, Antonije, Trivunac, Katarina, Popović, Aleksandar R., "Cadmium retention and distribution in contaminated soil: effects and interactions of soil properties, contamination level, aging time and in situ immobilization agents" in Ecotoxicology and Environmental Safety, 174 (2019):305-314,
https://doi.org/10.1016/j.ecoenv.2019.03.001 . .

TY  - JOUR
AU  - Radovanović, Neda
AU  - Malagurski, Ivana
AU  - Lević, Steva
AU  - Nešić, Aleksandra
AU  - Cabrera-Barjas, Gustavo
AU  - Kalušević, Ana
AU  - Nedović, Viktor
AU  - Pavlović, Vladimir
AU  - Dimitrijević-Branković, Suzana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4048
AB  - Agar-based composites with different Zn-carbonate mineral phase content were prepared by in situ mineralization and the solvent casting method. The mineral phase within the composite films was identified as hydrozincite, Zn-5(CO3)(2)(OH)(6). The presence of the mineral phase improved, both mechanical and water vapor permeability properties of the obtained composite films, in a concentration-dependent manner. The release of zinc ions from composite films is in accepted levels (up to 2.5%), and sufficient to provide complete inhibition growth of S. Aureus. The results of this study suggest that agar/Zn-carbonate composites could be potentially used as affordable, eco-friendly and functional materials with tunable properties for food packaging, agriculture or biomedical application. In situ procedure offers possibilities for tailoring the physical-chemical properties of composite films, by varying the Zn-mineral phase load.
PB  - Elsevier, Amsterdam
T2  - Materials Letters
T1  - Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films
VL  - 255
DO  - 10.1016/j.matlet.2019.126572
ER  - 

@article{
author = "Radovanović, Neda and Malagurski, Ivana and Lević, Steva and Nešić, Aleksandra and Cabrera-Barjas, Gustavo and Kalušević, Ana and Nedović, Viktor and Pavlović, Vladimir and Dimitrijević-Branković, Suzana",
year = "2019",
abstract = "Agar-based composites with different Zn-carbonate mineral phase content were prepared by in situ mineralization and the solvent casting method. The mineral phase within the composite films was identified as hydrozincite, Zn-5(CO3)(2)(OH)(6). The presence of the mineral phase improved, both mechanical and water vapor permeability properties of the obtained composite films, in a concentration-dependent manner. The release of zinc ions from composite films is in accepted levels (up to 2.5%), and sufficient to provide complete inhibition growth of S. Aureus. The results of this study suggest that agar/Zn-carbonate composites could be potentially used as affordable, eco-friendly and functional materials with tunable properties for food packaging, agriculture or biomedical application. In situ procedure offers possibilities for tailoring the physical-chemical properties of composite films, by varying the Zn-mineral phase load.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Letters",
title = "Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films",
volume = "255",
doi = "10.1016/j.matlet.2019.126572"
}

Radovanović, N., Malagurski, I., Lević, S., Nešić, A., Cabrera-Barjas, G., Kalušević, A., Nedović, V., Pavlović, V.,& Dimitrijević-Branković, S.. (2019). Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films. in Materials Letters
Elsevier, Amsterdam., 255.
https://doi.org/10.1016/j.matlet.2019.126572

Radovanović N, Malagurski I, Lević S, Nešić A, Cabrera-Barjas G, Kalušević A, Nedović V, Pavlović V, Dimitrijević-Branković S. Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films. in Materials Letters. 2019;255.
doi:10.1016/j.matlet.2019.126572 .

Radovanović, Neda, Malagurski, Ivana, Lević, Steva, Nešić, Aleksandra, Cabrera-Barjas, Gustavo, Kalušević, Ana, Nedović, Viktor, Pavlović, Vladimir, Dimitrijević-Branković, Suzana, "Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films" in Materials Letters, 255 (2019),
https://doi.org/10.1016/j.matlet.2019.126572 . .

TY  - CONF
AU  - Kovačina, Jovanka N.
AU  - Milošević, Milena D.
AU  - Božić, Aleksandra R.
AU  - Jovanović, Aleksandar
AU  - Marinković, Aleksandar
AU  - Onjia, Antonije
AU  - Povrenović, Dragan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4171
AB  - Due to the development of industry and population growth during the in recent years, there are problems with wastewater from production that needs to be addressed in an environmentally and economical way. All wastewaters from industry, no matter how they are created, contain harmful substances that may have some degree of toxicity, must be treated if their quality does not meet the legal requirements. The purpose of wastewater treatment is to remove harmful substances, thereby reducing its pollution level, and at the same time, it also has a certain economic and environmental effect. Therefore, wastewater treatment was carried out in this work by precipitation using calcium oxide to remove colloidal substances and heavy metals. Most pollutants are of organic origin and their removal will be carried in this work out using advanced oxidation processes using ozone, and ozone in combination with ultrasound to achieve water quality that complies with the law. The purification process will be optimized with respect to, method, time and amount of oxidizing agent applied. The degree of pollution of water by organic compounds will be determined on the basis of measurements of HPK, BOD and the concentration of heavy metals (lead, ferrum, chromium, copper, zinc, aluminum).
AB  - Usled razvoja industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa otpadnim vodama iz proizvodnje koje je neophodno rešavati na ekološki i ekonomičan način. Sve otpadne vode iz postrojenja bez obzira kako su nastale sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa, moraju se prečistiti ako njihov kvalitet ne odgovara zakonskim okvirima. Svrha tretmana otpadnih voda je uklanjanje štetnih materija čime se postiže smanjnje stepena njene zagađenosti, a istovremeno se ostvaruje i određen ekonomski i ekološki efekat, stoga je u ovom radu izvršeno prečišćavanje otpadne vode postupkom taloženja upotrebom kalcijum-oksida u cilju uklanjanja koloidnih materija i teških metala. Većina zagađujućih materija su organskog porekla i njihovo ukljanjanje vršiće se primenom naprednih oksidacionih procesa korišćenjem ozona i ozona u kombinaciji sa ultrazvukom u cilju postizanja kvaliteta vode koji odgovara zakonskoj regulativi. Proces prečišćavanja će se optimizovati u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu primenjenog oksidacionog sredstva. Stepen zagađenosti vode organskim jedinjenjima će se određivati na osnovu merenja HPK, BPK i koncentracije teških metala (olovo, gvožđe, hrom, bakar, cink, aluminijum).
PB  - Beograd : Beogradska politehnika
C3  - Zbornik radova - Peti naučno-stručni skup politehnika
T1  - Purification of waste water using ozonization
T1  - Prečišćavanje otpadnih voda primenom ozonizacije
EP  - 147
SP  - 142
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4171
ER  - 

@conference{
author = "Kovačina, Jovanka N. and Milošević, Milena D. and Božić, Aleksandra R. and Jovanović, Aleksandar and Marinković, Aleksandar and Onjia, Antonije and Povrenović, Dragan",
year = "2019",
abstract = "Due to the development of industry and population growth during the in recent years, there are problems with wastewater from production that needs to be addressed in an environmentally and economical way. All wastewaters from industry, no matter how they are created, contain harmful substances that may have some degree of toxicity, must be treated if their quality does not meet the legal requirements. The purpose of wastewater treatment is to remove harmful substances, thereby reducing its pollution level, and at the same time, it also has a certain economic and environmental effect. Therefore, wastewater treatment was carried out in this work by precipitation using calcium oxide to remove colloidal substances and heavy metals. Most pollutants are of organic origin and their removal will be carried in this work out using advanced oxidation processes using ozone, and ozone in combination with ultrasound to achieve water quality that complies with the law. The purification process will be optimized with respect to, method, time and amount of oxidizing agent applied. The degree of pollution of water by organic compounds will be determined on the basis of measurements of HPK, BOD and the concentration of heavy metals (lead, ferrum, chromium, copper, zinc, aluminum)., Usled razvoja industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa otpadnim vodama iz proizvodnje koje je neophodno rešavati na ekološki i ekonomičan način. Sve otpadne vode iz postrojenja bez obzira kako su nastale sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa, moraju se prečistiti ako njihov kvalitet ne odgovara zakonskim okvirima. Svrha tretmana otpadnih voda je uklanjanje štetnih materija čime se postiže smanjnje stepena njene zagađenosti, a istovremeno se ostvaruje i određen ekonomski i ekološki efekat, stoga je u ovom radu izvršeno prečišćavanje otpadne vode postupkom taloženja upotrebom kalcijum-oksida u cilju uklanjanja koloidnih materija i teških metala. Većina zagađujućih materija su organskog porekla i njihovo ukljanjanje vršiće se primenom naprednih oksidacionih procesa korišćenjem ozona i ozona u kombinaciji sa ultrazvukom u cilju postizanja kvaliteta vode koji odgovara zakonskoj regulativi. Proces prečišćavanja će se optimizovati u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu primenjenog oksidacionog sredstva. Stepen zagađenosti vode organskim jedinjenjima će se određivati na osnovu merenja HPK, BPK i koncentracije teških metala (olovo, gvožđe, hrom, bakar, cink, aluminijum).",
publisher = "Beograd : Beogradska politehnika",
journal = "Zbornik radova - Peti naučno-stručni skup politehnika",
title = "Purification of waste water using ozonization, Prečišćavanje otpadnih voda primenom ozonizacije",
pages = "147-142",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4171"
}

Kovačina, J. N., Milošević, M. D., Božić, A. R., Jovanović, A., Marinković, A., Onjia, A.,& Povrenović, D.. (2019). Purification of waste water using ozonization. in Zbornik radova - Peti naučno-stručni skup politehnika
Beograd : Beogradska politehnika., 142-147.
https://hdl.handle.net/21.15107/rcub_technorep_4171

Kovačina JN, Milošević MD, Božić AR, Jovanović A, Marinković A, Onjia A, Povrenović D. Purification of waste water using ozonization. in Zbornik radova - Peti naučno-stručni skup politehnika. 2019;:142-147.
https://hdl.handle.net/21.15107/rcub_technorep_4171 .

Kovačina, Jovanka N., Milošević, Milena D., Božić, Aleksandra R., Jovanović, Aleksandar, Marinković, Aleksandar, Onjia, Antonije, Povrenović, Dragan, "Purification of waste water using ozonization" in Zbornik radova - Peti naučno-stručni skup politehnika (2019):142-147,
https://hdl.handle.net/21.15107/rcub_technorep_4171 .

TY  - JOUR
AU  - Dimović, Slavko
AU  - Nikezić, Dušan P.
AU  - Šljivić-Ivanović, Marija Z.
AU  - Jelić, Ivana V.
AU  - Stanić, Vojislav
AU  - Radenković, Mirjana
AU  - Lončar, Boris B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5893
AB  - The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - Leaching kinetics of Cs+ and Co2+ under dynamic conditions
EP  - 248
IS  - 3
SP  - 243
VL  - 34
DO  - 10.2298/NTRP190506028D
ER  - 

@article{
author = "Dimović, Slavko and Nikezić, Dušan P. and Šljivić-Ivanović, Marija Z. and Jelić, Ivana V. and Stanić, Vojislav and Radenković, Mirjana and Lončar, Boris B.",
year = "2019",
abstract = "The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "Leaching kinetics of Cs+ and Co2+ under dynamic conditions",
pages = "248-243",
number = "3",
volume = "34",
doi = "10.2298/NTRP190506028D"
}

Dimović, S., Nikezić, D. P., Šljivić-Ivanović, M. Z., Jelić, I. V., Stanić, V., Radenković, M.,& Lončar, B. B.. (2019). Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection, 34(3), 243-248.
https://doi.org/10.2298/NTRP190506028D

Dimović S, Nikezić DP, Šljivić-Ivanović MZ, Jelić IV, Stanić V, Radenković M, Lončar BB. Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection. 2019;34(3):243-248.
doi:10.2298/NTRP190506028D .

Dimović, Slavko, Nikezić, Dušan P., Šljivić-Ivanović, Marija Z., Jelić, Ivana V., Stanić, Vojislav, Radenković, Mirjana, Lončar, Boris B., "Leaching kinetics of Cs+ and Co2+ under dynamic conditions" in Nuclear Technology and Radiation Protection, 34, no. 3 (2019):243-248,
https://doi.org/10.2298/NTRP190506028D . .

TY  - JOUR
AU  - Suručić, Ljiljana T.
AU  - Janjić, Goran
AU  - Rakić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Popović, Aleksandar R.
AU  - Milčić, Miloš
AU  - Onjia, Antonije
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4217
AB  - With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6-311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (Er). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in Er by using the total solvation energy for reaction of formation of tetaOH complex (Es1, the first approach) or by using dehydration energy of free metal ion (Es2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).
PB  - Springer, New York
T2  - Journal of Molecular Modeling
T1  - Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution
IS  - 6
VL  - 25
DO  - 10.1007/s00894-019-4053-0
ER  - 

@article{
author = "Suručić, Ljiljana T. and Janjić, Goran and Rakić, Aleksandra and Nastasović, Aleksandra and Popović, Aleksandar R. and Milčić, Miloš and Onjia, Antonije",
year = "2019",
abstract = "With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6-311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (Er). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in Er by using the total solvation energy for reaction of formation of tetaOH complex (Es1, the first approach) or by using dehydration energy of free metal ion (Es2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).",
publisher = "Springer, New York",
journal = "Journal of Molecular Modeling",
title = "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution",
number = "6",
volume = "25",
doi = "10.1007/s00894-019-4053-0"
}

Suručić, L. T., Janjić, G., Rakić, A., Nastasović, A., Popović, A. R., Milčić, M.,& Onjia, A.. (2019). Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling
Springer, New York., 25(6).
https://doi.org/10.1007/s00894-019-4053-0

Suručić LT, Janjić G, Rakić A, Nastasović A, Popović AR, Milčić M, Onjia A. Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling. 2019;25(6).
doi:10.1007/s00894-019-4053-0 .

Suručić, Ljiljana T., Janjić, Goran, Rakić, Aleksandra, Nastasović, Aleksandra, Popović, Aleksandar R., Milčić, Miloš, Onjia, Antonije, "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution" in Journal of Molecular Modeling, 25, no. 6 (2019),
https://doi.org/10.1007/s00894-019-4053-0 . .