TY  - JOUR
AU  - Tasić, Aleksandra M.
AU  - Sredović-Ignjatović, Ivana
AU  - Ignjatović, Ljubiša M.
AU  - Andjelković, Ivan B.
AU  - Antić, Mališa
AU  - Rajaković, Ljubinka V.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5831
AB  - This paper presents the extraction of major and trace elements from a coal sample, in deionized water, by using three different extraction techniques. Rotary mixing and ultrasonic extraction were examined for different extraction times, while the microwave-assisted extraction was performed at different temperatures. Metal concentrations (Na, K, Ca, Mg, Al, Fe, Mn, Be, Cd, Co, Cr, Hg, As, Ni, Se, Sb and Pb) in solution were determined employing inductively coupled plasma atomic emission spectrometry; whereas the results obtained for Na, K, Ca and Mg were compared employing ion chromatography. Comparing the rotary-and ultrasonic-assisted extractions, it was shown that the former technique was more efficient for the determination of Fe, Na and Pb, whereas the latter one proved more efficient for the determination of Co and Cr ions. Microwave-assisted extraction was shown to be the most efficient method for all the tested elements in coal. In addition, sequential extraction of the elements was realized using microwave digestion. The results of the sequential extraction experiments indicated associations of investigated elements with a mineral phase and organic matrix. Sequential extraction provided information on possible leaching of As, Cd, Co, Cr, Ni, Pb, Fe and Mn under environmental conditions.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography
EP  - 417
IS  - 4
SP  - 403
VL  - 81
DO  - 10.2298/JSC150429078T
ER  - 

@article{
author = "Tasić, Aleksandra M. and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Andjelković, Ivan B. and Antić, Mališa and Rajaković, Ljubinka V.",
year = "2016",
abstract = "This paper presents the extraction of major and trace elements from a coal sample, in deionized water, by using three different extraction techniques. Rotary mixing and ultrasonic extraction were examined for different extraction times, while the microwave-assisted extraction was performed at different temperatures. Metal concentrations (Na, K, Ca, Mg, Al, Fe, Mn, Be, Cd, Co, Cr, Hg, As, Ni, Se, Sb and Pb) in solution were determined employing inductively coupled plasma atomic emission spectrometry; whereas the results obtained for Na, K, Ca and Mg were compared employing ion chromatography. Comparing the rotary-and ultrasonic-assisted extractions, it was shown that the former technique was more efficient for the determination of Fe, Na and Pb, whereas the latter one proved more efficient for the determination of Co and Cr ions. Microwave-assisted extraction was shown to be the most efficient method for all the tested elements in coal. In addition, sequential extraction of the elements was realized using microwave digestion. The results of the sequential extraction experiments indicated associations of investigated elements with a mineral phase and organic matrix. Sequential extraction provided information on possible leaching of As, Cd, Co, Cr, Ni, Pb, Fe and Mn under environmental conditions.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography",
pages = "417-403",
number = "4",
volume = "81",
doi = "10.2298/JSC150429078T"
}

Tasić, A. M., Sredović-Ignjatović, I., Ignjatović, L. M., Andjelković, I. B., Antić, M.,& Rajaković, L. V.. (2016). Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(4), 403-417.
https://doi.org/10.2298/JSC150429078T

Tasić AM, Sredović-Ignjatović I, Ignjatović LM, Andjelković IB, Antić M, Rajaković LV. Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography. in Journal of the Serbian Chemical Society. 2016;81(4):403-417.
doi:10.2298/JSC150429078T .

Tasić, Aleksandra M., Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Andjelković, Ivan B., Antić, Mališa, Rajaković, Ljubinka V., "Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography" in Journal of the Serbian Chemical Society, 81, no. 4 (2016):403-417,
https://doi.org/10.2298/JSC150429078T . .

TY  - CONF
AU  - Živojinović, Dragana Z.
AU  - Lukić, Nataša A.
AU  - Ražić, Slavica S.
AU  - Onjia, Antonije E.
AU  - Rajaković, Ljubinka V.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7131
PB  - Beograd : Srpsko hemijsko društvo
C3  - Knjiga izvoda / 7. Simpozijum Hemija i Zaštita životne sredine sa međunarodnim učešćem, EnviroChem 2015, Palić, Srbija, 9-12. Jun 2015
T1  - Značaj primene multivarijacione statistike analize u praćenju parametara kvaliteta vode
T1  - The importance of multivariate statistical analysis in monitoring of water quality parameters
EP  - 66
SP  - 65
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7131
ER  - 

@conference{
author = "Živojinović, Dragana Z. and Lukić, Nataša A. and Ražić, Slavica S. and Onjia, Antonije E. and Rajaković, Ljubinka V.",
year = "2015",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Knjiga izvoda / 7. Simpozijum Hemija i Zaštita životne sredine sa međunarodnim učešćem, EnviroChem 2015, Palić, Srbija, 9-12. Jun 2015",
title = "Značaj primene multivarijacione statistike analize u praćenju parametara kvaliteta vode, The importance of multivariate statistical analysis in monitoring of water quality parameters",
pages = "66-65",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7131"
}

Živojinović, D. Z., Lukić, N. A., Ražić, S. S., Onjia, A. E.,& Rajaković, L. V.. (2015). Značaj primene multivarijacione statistike analize u praćenju parametara kvaliteta vode. in Knjiga izvoda / 7. Simpozijum Hemija i Zaštita životne sredine sa međunarodnim učešćem, EnviroChem 2015, Palić, Srbija, 9-12. Jun 2015
Beograd : Srpsko hemijsko društvo., 65-66.
https://hdl.handle.net/21.15107/rcub_technorep_7131

Živojinović DZ, Lukić NA, Ražić SS, Onjia AE, Rajaković LV. Značaj primene multivarijacione statistike analize u praćenju parametara kvaliteta vode. in Knjiga izvoda / 7. Simpozijum Hemija i Zaštita životne sredine sa međunarodnim učešćem, EnviroChem 2015, Palić, Srbija, 9-12. Jun 2015. 2015;:65-66.
https://hdl.handle.net/21.15107/rcub_technorep_7131 .

Živojinović, Dragana Z., Lukić, Nataša A., Ražić, Slavica S., Onjia, Antonije E., Rajaković, Ljubinka V., "Značaj primene multivarijacione statistike analize u praćenju parametara kvaliteta vode" in Knjiga izvoda / 7. Simpozijum Hemija i Zaštita životne sredine sa međunarodnim učešćem, EnviroChem 2015, Palić, Srbija, 9-12. Jun 2015 (2015):65-66,
https://hdl.handle.net/21.15107/rcub_technorep_7131 .

TY  - CONF
AU  - Sredović Ignjatović, Ivana
AU  - Onjia, Antonije
AU  - Ignjatović, Ljubiša
AU  - Rajaković, Ljubinka
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7130
PB  - Beograd : Srpsko hemijsko društvo
C3  - Knjiga izvoda = Book of abstracts / 6. simpozijum Hemija i zaštita životne sredine sa međunarodnim učešćem = 6th Symposium Chemistry and Environmental Protection with international participation, Vršac, 21-24. maj 2013
T1  - Primena jonske hromatografije za određivanje fluora u uglju posle sagorevanja u kiseoničnoj bombi
T1  - Application of ion chromatography for fluorine determination in coal after oxygen bomb combustion
EP  - 213
SP  - 212
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7130
ER  - 

@conference{
author = "Sredović Ignjatović, Ivana and Onjia, Antonije and Ignjatović, Ljubiša and Rajaković, Ljubinka",
year = "2013",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Knjiga izvoda = Book of abstracts / 6. simpozijum Hemija i zaštita životne sredine sa međunarodnim učešćem = 6th Symposium Chemistry and Environmental Protection with international participation, Vršac, 21-24. maj 2013",
title = "Primena jonske hromatografije za određivanje fluora u uglju posle sagorevanja u kiseoničnoj bombi, Application of ion chromatography for fluorine determination in coal after oxygen bomb combustion",
pages = "213-212",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7130"
}

Sredović Ignjatović, I., Onjia, A., Ignjatović, L.,& Rajaković, L.. (2013). Primena jonske hromatografije za određivanje fluora u uglju posle sagorevanja u kiseoničnoj bombi. in Knjiga izvoda = Book of abstracts / 6. simpozijum Hemija i zaštita životne sredine sa međunarodnim učešćem = 6th Symposium Chemistry and Environmental Protection with international participation, Vršac, 21-24. maj 2013
Beograd : Srpsko hemijsko društvo., 212-213.
https://hdl.handle.net/21.15107/rcub_technorep_7130

Sredović Ignjatović I, Onjia A, Ignjatović L, Rajaković L. Primena jonske hromatografije za određivanje fluora u uglju posle sagorevanja u kiseoničnoj bombi. in Knjiga izvoda = Book of abstracts / 6. simpozijum Hemija i zaštita životne sredine sa međunarodnim učešćem = 6th Symposium Chemistry and Environmental Protection with international participation, Vršac, 21-24. maj 2013. 2013;:212-213.
https://hdl.handle.net/21.15107/rcub_technorep_7130 .

Sredović Ignjatović, Ivana, Onjia, Antonije, Ignjatović, Ljubiša, Rajaković, Ljubinka, "Primena jonske hromatografije za određivanje fluora u uglju posle sagorevanja u kiseoničnoj bombi" in Knjiga izvoda = Book of abstracts / 6. simpozijum Hemija i zaštita životne sredine sa međunarodnim učešćem = 6th Symposium Chemistry and Environmental Protection with international participation, Vršac, 21-24. maj 2013 (2013):212-213,
https://hdl.handle.net/21.15107/rcub_technorep_7130 .

TY  - JOUR
AU  - Lekić, Branislava
AU  - Marković, Dana D.
AU  - Rajaković-Ognjanović, Vladana
AU  - Đukić, Aleksandar
AU  - Rajaković, Ljubinka V.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5677
AB  - In this study, removal of arsenic ions using two industrial by-products as adsorbents is represented. Removal of As(III) and As(V) from water was carried out with industrial by-products: residual from the groundwater treatment process, iron-manganese oxide coated sand (IMOCS), and blast furnace slag from steel production (BFS), both inexpensive and locally available. In addition, the BFS was modified in order to minimise its deteriorating impact on the initial water quality. Kinetic and equilibrium studies were carried out using batch and fixed-bed column adsorption techniques under the conditions that are likely to occur in real water treatment systems. To evaluate the application for real groundwater treatment, the capacities of the selected materials were further compared to those exhibited by commercial sorbents, which were examined under the same experimental conditions. IMOCS was found to be a good and inexpensive sorbent for arsenic, while BFS and modified slag showed the highest affinity towards arsenic. All examined waste materials exhibited better sorption performances for As(V). The maximum sorption capacity in the batch reactor was obtained for blast furnace slag, 4040 mu gAs(V)/g.
PB  - Hindawi Limited
T2  - Journal of Chemistry
T1  - Arsenic Removal from Water Using Industrial By-Products
DO  - 10.1155/2013/121024
ER  - 

@article{
author = "Lekić, Branislava and Marković, Dana D. and Rajaković-Ognjanović, Vladana and Đukić, Aleksandar and Rajaković, Ljubinka V.",
year = "2013",
abstract = "In this study, removal of arsenic ions using two industrial by-products as adsorbents is represented. Removal of As(III) and As(V) from water was carried out with industrial by-products: residual from the groundwater treatment process, iron-manganese oxide coated sand (IMOCS), and blast furnace slag from steel production (BFS), both inexpensive and locally available. In addition, the BFS was modified in order to minimise its deteriorating impact on the initial water quality. Kinetic and equilibrium studies were carried out using batch and fixed-bed column adsorption techniques under the conditions that are likely to occur in real water treatment systems. To evaluate the application for real groundwater treatment, the capacities of the selected materials were further compared to those exhibited by commercial sorbents, which were examined under the same experimental conditions. IMOCS was found to be a good and inexpensive sorbent for arsenic, while BFS and modified slag showed the highest affinity towards arsenic. All examined waste materials exhibited better sorption performances for As(V). The maximum sorption capacity in the batch reactor was obtained for blast furnace slag, 4040 mu gAs(V)/g.",
publisher = "Hindawi Limited",
journal = "Journal of Chemistry",
title = "Arsenic Removal from Water Using Industrial By-Products",
doi = "10.1155/2013/121024"
}

Lekić, B., Marković, D. D., Rajaković-Ognjanović, V., Đukić, A.,& Rajaković, L. V.. (2013). Arsenic Removal from Water Using Industrial By-Products. in Journal of Chemistry
Hindawi Limited..
https://doi.org/10.1155/2013/121024

Lekić B, Marković DD, Rajaković-Ognjanović V, Đukić A, Rajaković LV. Arsenic Removal from Water Using Industrial By-Products. in Journal of Chemistry. 2013;.
doi:10.1155/2013/121024 .

Lekić, Branislava, Marković, Dana D., Rajaković-Ognjanović, Vladana, Đukić, Aleksandar, Rajaković, Ljubinka V., "Arsenic Removal from Water Using Industrial By-Products" in Journal of Chemistry (2013),
https://doi.org/10.1155/2013/121024 . .

TY  - JOUR
AU  - Žarković, Darja B.
AU  - Todorović, Žaklina
AU  - Rajaković, Ljubinka V.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5655
AB  - In this study, the performance and the efficiency of physico-chemical effluent treatment in a paper mill was investigated, with the aim of evaluating the treatment rationality and running stability. The effluent treatment plant (ETP) uses alum as a coagulant and polyacrylamide as a flocculant in multi-stage water purification. Inadequate efficiency and some operational problems were observed and their occurrences were investigated. Several simple measures inside the mill and some technical measures can prevent or postpone expensive end-of-pipe treatment investments, such as biological treatment. Chemically enhanced primary treatment under optimal operating conditions can be a stand-alone technique for achieving high quality effluent. Furthermore, reductions in wastewater generation in combination with fiber and filler recovery provide environmental benefits as well as significant economic savings in production. The advantages of the cleaner production approach in existing treatment units compared to expensive biological end-of-pipe technologies are obvious. This study demonstrated that the examined mill could easily and cost-effectively change its water system toward strict discharge limits by continuing to use the existing treatment units. (C) 2010 Elsevier Ltd. All rights reserved.
T2  - Journal of Cleaner Production
T1  - Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study
EP  - 774
IS  - 6-7
SP  - 764
VL  - 19
DO  - 10.1016/j.jclepro.2010.11.015
ER  - 

@article{
author = "Žarković, Darja B. and Todorović, Žaklina and Rajaković, Ljubinka V.",
year = "2011",
abstract = "In this study, the performance and the efficiency of physico-chemical effluent treatment in a paper mill was investigated, with the aim of evaluating the treatment rationality and running stability. The effluent treatment plant (ETP) uses alum as a coagulant and polyacrylamide as a flocculant in multi-stage water purification. Inadequate efficiency and some operational problems were observed and their occurrences were investigated. Several simple measures inside the mill and some technical measures can prevent or postpone expensive end-of-pipe treatment investments, such as biological treatment. Chemically enhanced primary treatment under optimal operating conditions can be a stand-alone technique for achieving high quality effluent. Furthermore, reductions in wastewater generation in combination with fiber and filler recovery provide environmental benefits as well as significant economic savings in production. The advantages of the cleaner production approach in existing treatment units compared to expensive biological end-of-pipe technologies are obvious. This study demonstrated that the examined mill could easily and cost-effectively change its water system toward strict discharge limits by continuing to use the existing treatment units. (C) 2010 Elsevier Ltd. All rights reserved.",
journal = "Journal of Cleaner Production",
title = "Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study",
pages = "774-764",
number = "6-7",
volume = "19",
doi = "10.1016/j.jclepro.2010.11.015"
}

Žarković, D. B., Todorović, Ž.,& Rajaković, L. V.. (2011). Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study. in Journal of Cleaner Production, 19(6-7), 764-774.
https://doi.org/10.1016/j.jclepro.2010.11.015

Žarković DB, Todorović Ž, Rajaković LV. Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study. in Journal of Cleaner Production. 2011;19(6-7):764-774.
doi:10.1016/j.jclepro.2010.11.015 .

Žarković, Darja B., Todorović, Žaklina, Rajaković, Ljubinka V., "Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study" in Journal of Cleaner Production, 19, no. 6-7 (2011):764-774,
https://doi.org/10.1016/j.jclepro.2010.11.015 . .

TY  - CONF
AU  - Onjia, Antonije
AU  - Todorović, Žaklina
AU  - Slavković-Beškoski, Latinka
AU  - Rajaković, Ljubinka
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7134
C3  - Book of Abstracts / International Conference, Extraction of the organic compounds, ICEOC-2010, Voronezh, Russia, September 20-24, 2010
T1  - Microwave-assisted extraction and high performance liquid chromatography as a rapid method for mothproofing agents analysis
SP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7134
ER  - 

@conference{
author = "Onjia, Antonije and Todorović, Žaklina and Slavković-Beškoski, Latinka and Rajaković, Ljubinka",
year = "2010",
journal = "Book of Abstracts / International Conference, Extraction of the organic compounds, ICEOC-2010, Voronezh, Russia, September 20-24, 2010",
title = "Microwave-assisted extraction and high performance liquid chromatography as a rapid method for mothproofing agents analysis",
pages = "144",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7134"
}

Onjia, A., Todorović, Ž., Slavković-Beškoski, L.,& Rajaković, L.. (2010). Microwave-assisted extraction and high performance liquid chromatography as a rapid method for mothproofing agents analysis. in Book of Abstracts / International Conference, Extraction of the organic compounds, ICEOC-2010, Voronezh, Russia, September 20-24, 2010, 144.
https://hdl.handle.net/21.15107/rcub_technorep_7134

Onjia A, Todorović Ž, Slavković-Beškoski L, Rajaković L. Microwave-assisted extraction and high performance liquid chromatography as a rapid method for mothproofing agents analysis. in Book of Abstracts / International Conference, Extraction of the organic compounds, ICEOC-2010, Voronezh, Russia, September 20-24, 2010. 2010;:144.
https://hdl.handle.net/21.15107/rcub_technorep_7134 .

Onjia, Antonije, Todorović, Žaklina, Slavković-Beškoski, Latinka, Rajaković, Ljubinka, "Microwave-assisted extraction and high performance liquid chromatography as a rapid method for mothproofing agents analysis" in Book of Abstracts / International Conference, Extraction of the organic compounds, ICEOC-2010, Voronezh, Russia, September 20-24, 2010 (2010):144,
https://hdl.handle.net/21.15107/rcub_technorep_7134 .

TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Nenadović, Miloš
AU  - Rajaković, Ljubinka V.
AU  - Rakočević, Zlatko Lj.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5588
AB  - High density polyethylene (HDPE) has been modified by Ag+ ion implantation with the energy of 60 keV. The total amount of implanted silver ions was 1, 5 and 12 x 10(15) ions/cm(2). The surface topography was observed by atomic forcemicroscopy (AFM), while the surface composition changes were detected using phase imaging AFM. Surface topography changes were studied in detail using 3D surface parameters analyses. The average roughness decreased for the implanted HDPE indicating the flattening of the surface. Phase AFM images indicated the homogenization of the polyethylene during ion implantation, while histogram analyses confirmed the change in surface composition.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Chemical surface composition of the polyethylene implanted by Ag+ ions studied by phase imaging atomic force microscopy
EP  - 3899
IS  - 12
SP  - 3895
VL  - 256
DO  - 10.1016/j.apsusc.2010.01.046
ER  - 

@article{
author = "Štrbac, Svetlana and Nenadović, Miloš and Rajaković, Ljubinka V. and Rakočević, Zlatko Lj.",
year = "2010",
abstract = "High density polyethylene (HDPE) has been modified by Ag+ ion implantation with the energy of 60 keV. The total amount of implanted silver ions was 1, 5 and 12 x 10(15) ions/cm(2). The surface topography was observed by atomic forcemicroscopy (AFM), while the surface composition changes were detected using phase imaging AFM. Surface topography changes were studied in detail using 3D surface parameters analyses. The average roughness decreased for the implanted HDPE indicating the flattening of the surface. Phase AFM images indicated the homogenization of the polyethylene during ion implantation, while histogram analyses confirmed the change in surface composition.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Chemical surface composition of the polyethylene implanted by Ag+ ions studied by phase imaging atomic force microscopy",
pages = "3899-3895",
number = "12",
volume = "256",
doi = "10.1016/j.apsusc.2010.01.046"
}

Štrbac, S., Nenadović, M., Rajaković, L. V.,& Rakočević, Z. Lj.. (2010). Chemical surface composition of the polyethylene implanted by Ag+ ions studied by phase imaging atomic force microscopy. in Applied Surface Science
Elsevier., 256(12), 3895-3899.
https://doi.org/10.1016/j.apsusc.2010.01.046

Štrbac S, Nenadović M, Rajaković LV, Rakočević ZL. Chemical surface composition of the polyethylene implanted by Ag+ ions studied by phase imaging atomic force microscopy. in Applied Surface Science. 2010;256(12):3895-3899.
doi:10.1016/j.apsusc.2010.01.046 .

Štrbac, Svetlana, Nenadović, Miloš, Rajaković, Ljubinka V., Rakočević, Zlatko Lj., "Chemical surface composition of the polyethylene implanted by Ag+ ions studied by phase imaging atomic force microscopy" in Applied Surface Science, 256, no. 12 (2010):3895-3899,
https://doi.org/10.1016/j.apsusc.2010.01.046 . .

TY  - JOUR
AU  - Ben Issa, Nureddin
AU  - Rajaković-Ognjanović, Vladana
AU  - Jovanović, Branislava M.
AU  - Rajaković, Ljubinka V.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5589
AB  - A simple method for the separation and determination of inorganic arsenic (iAs) species in natural and drinking water was developed. Procedures for sample preparation, separation of As(III) and As(V) species and preconcentration of the total iAs on fixed bed columns were defined. Two resins, a strong base anion exchange (SBAE) resin and a hybrid (HY) resin were utilized. The inductively-coupled plasma-mass spectrometry method was applied as the analytical method for the determination of the arsenic concentration in water. The governing factors for the ion exchange/sorption of arsenic on resins in a batch and a fixed bed flow system were analyzed and compared. Acidity of the water, which plays an important role in the control of the ionic or molecular forms of arsenic species, was beneficial for the separation; by adjusting the pH values to less than 8.00, the SBAE resin separated As(V) from As(III) in water by retaining As(V) and allowing As(III) to pass through. The sorption activity of the hydrated iron oxide particles integrated into the HY resin was beneficial for bonding of all iAs species over a wide range of pH values from 5.00 to 11.00. The resin capacities were calculated according to the breakthrough points in a fixed bed flow system. At pH 7.50, the SBAE resin bound more than 370 mu g g(-1) of As(V) while the HY resin bound more than 4150 mu g g(-1) of As(III) and more than 3500 mu g g(-1) of As(V). The high capacities and selectivity of the resins were considered as advantageous for the development and application of two procedures, one for the separation and determination of As(III) (with SBAE) and the other for the preconcentration and determination of the total arsenic (with HY resin). Methods were established through basic analytical procedures (with external standards, certified reference materials and the standard addition method) and by the parallel analysis of some samples using the atomic absorption spectrometry-hydride generation technique. The analytical properties of both procedures were similar: the limit of detection was 0.24 mu g L-1, the limit of quantification was 0.80 mu g L-1 and the relative standard deviations for samples with a content of arsenic from 10.00 to 300.0 mu g L-1 ranged from 1.1 to 5.8%. The interference effects of anions commonly found in water and some organic species which can be present in water were found to be negligible. Verification with certified reference materials proved that the experimental concentrations found for model solutions and real samples were in agreement with the certified values.
T2  - Analytica Chimica Acta
T1  - Determination of inorganic arsenic species in natural waters-Benefits of separation and preconcentration on ion exchange and hybrid resins
EP  - 193
IS  - 2
SP  - 185
VL  - 673
DO  - 10.1016/j.aca.2010.05.027
ER  - 

@article{
author = "Ben Issa, Nureddin and Rajaković-Ognjanović, Vladana and Jovanović, Branislava M. and Rajaković, Ljubinka V.",
year = "2010",
abstract = "A simple method for the separation and determination of inorganic arsenic (iAs) species in natural and drinking water was developed. Procedures for sample preparation, separation of As(III) and As(V) species and preconcentration of the total iAs on fixed bed columns were defined. Two resins, a strong base anion exchange (SBAE) resin and a hybrid (HY) resin were utilized. The inductively-coupled plasma-mass spectrometry method was applied as the analytical method for the determination of the arsenic concentration in water. The governing factors for the ion exchange/sorption of arsenic on resins in a batch and a fixed bed flow system were analyzed and compared. Acidity of the water, which plays an important role in the control of the ionic or molecular forms of arsenic species, was beneficial for the separation; by adjusting the pH values to less than 8.00, the SBAE resin separated As(V) from As(III) in water by retaining As(V) and allowing As(III) to pass through. The sorption activity of the hydrated iron oxide particles integrated into the HY resin was beneficial for bonding of all iAs species over a wide range of pH values from 5.00 to 11.00. The resin capacities were calculated according to the breakthrough points in a fixed bed flow system. At pH 7.50, the SBAE resin bound more than 370 mu g g(-1) of As(V) while the HY resin bound more than 4150 mu g g(-1) of As(III) and more than 3500 mu g g(-1) of As(V). The high capacities and selectivity of the resins were considered as advantageous for the development and application of two procedures, one for the separation and determination of As(III) (with SBAE) and the other for the preconcentration and determination of the total arsenic (with HY resin). Methods were established through basic analytical procedures (with external standards, certified reference materials and the standard addition method) and by the parallel analysis of some samples using the atomic absorption spectrometry-hydride generation technique. The analytical properties of both procedures were similar: the limit of detection was 0.24 mu g L-1, the limit of quantification was 0.80 mu g L-1 and the relative standard deviations for samples with a content of arsenic from 10.00 to 300.0 mu g L-1 ranged from 1.1 to 5.8%. The interference effects of anions commonly found in water and some organic species which can be present in water were found to be negligible. Verification with certified reference materials proved that the experimental concentrations found for model solutions and real samples were in agreement with the certified values.",
journal = "Analytica Chimica Acta",
title = "Determination of inorganic arsenic species in natural waters-Benefits of separation and preconcentration on ion exchange and hybrid resins",
pages = "193-185",
number = "2",
volume = "673",
doi = "10.1016/j.aca.2010.05.027"
}

Ben Issa, N., Rajaković-Ognjanović, V., Jovanović, B. M.,& Rajaković, L. V.. (2010). Determination of inorganic arsenic species in natural waters-Benefits of separation and preconcentration on ion exchange and hybrid resins. in Analytica Chimica Acta, 673(2), 185-193.
https://doi.org/10.1016/j.aca.2010.05.027

Ben Issa N, Rajaković-Ognjanović V, Jovanović BM, Rajaković LV. Determination of inorganic arsenic species in natural waters-Benefits of separation and preconcentration on ion exchange and hybrid resins. in Analytica Chimica Acta. 2010;673(2):185-193.
doi:10.1016/j.aca.2010.05.027 .

Ben Issa, Nureddin, Rajaković-Ognjanović, Vladana, Jovanović, Branislava M., Rajaković, Ljubinka V., "Determination of inorganic arsenic species in natural waters-Benefits of separation and preconcentration on ion exchange and hybrid resins" in Analytica Chimica Acta, 673, no. 2 (2010):185-193,
https://doi.org/10.1016/j.aca.2010.05.027 . .

TY  - JOUR
AU  - Jovanović, Branislava M.
AU  - Rajaković, Ljubinka V.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5606
AB  - The sorption of inorganic arsenic species (arsenite and arsenate) from aqueous solutions onto steel-mill waste and waste filter sand, under neutral conditions, was investigated in this study. Additionally, the steel-mill waste material was modified in order to minimize its deteriorating impact on the initial water quality and to meet the drinking water standards. The influence of contact time and initial arsenic concentration was investigated using batch system techniques. To evaluate the application for real groundwater treatment, the capacities of the obtained waste materials were further compared to those exhibited by commercial sorbents, which were examined under the same experimental conditions. Kinetic studies revealed that waste slag materials are the most efficient in arsenic removal, reaching equilibrium arsenic sorption capacities in the range 47.6-55.2 mu g/g, while waste filter sand exhibited capacities of 25.4-29.8 mu g/g (for an initial arsenic concentration C-o=0.5 mg/L). The higher iron content in the slag materials was considered to be responsible for the better removal efficiencies, and the specific arsenic removal efficiency was estimated to be 220 mu gAs/gFe. The specific arsenic removal efficiency of the second active substance found in waste filter sand, manganese, was estimated to be 115 mu gAs/gMn. Equilibrium studies revealed the occurrence of both chemisorption and physical sorption processes. All the waste materials exhibited higher performances for As (V). The highest maximum sorption capacity was obtained by waste iron slag: 4040 mu g/g for As (V). The waste materials reached the arsenic removal capacities of the examined commercial materials, suggesting the feasibility of their application in real groundwater treatment.
T2  - Journal of Environmental Engineering
T1  - New Approach: Waste Materials as Sorbents for Arsenic Removal from Water
EP  - 1286
IS  - 11
SP  - 1277
VL  - 136
DO  - 10.1061/(ASCE)EE.1943-7870.0000266
ER  - 

@article{
author = "Jovanović, Branislava M. and Rajaković, Ljubinka V.",
year = "2010",
abstract = "The sorption of inorganic arsenic species (arsenite and arsenate) from aqueous solutions onto steel-mill waste and waste filter sand, under neutral conditions, was investigated in this study. Additionally, the steel-mill waste material was modified in order to minimize its deteriorating impact on the initial water quality and to meet the drinking water standards. The influence of contact time and initial arsenic concentration was investigated using batch system techniques. To evaluate the application for real groundwater treatment, the capacities of the obtained waste materials were further compared to those exhibited by commercial sorbents, which were examined under the same experimental conditions. Kinetic studies revealed that waste slag materials are the most efficient in arsenic removal, reaching equilibrium arsenic sorption capacities in the range 47.6-55.2 mu g/g, while waste filter sand exhibited capacities of 25.4-29.8 mu g/g (for an initial arsenic concentration C-o=0.5 mg/L). The higher iron content in the slag materials was considered to be responsible for the better removal efficiencies, and the specific arsenic removal efficiency was estimated to be 220 mu gAs/gFe. The specific arsenic removal efficiency of the second active substance found in waste filter sand, manganese, was estimated to be 115 mu gAs/gMn. Equilibrium studies revealed the occurrence of both chemisorption and physical sorption processes. All the waste materials exhibited higher performances for As (V). The highest maximum sorption capacity was obtained by waste iron slag: 4040 mu g/g for As (V). The waste materials reached the arsenic removal capacities of the examined commercial materials, suggesting the feasibility of their application in real groundwater treatment.",
journal = "Journal of Environmental Engineering",
title = "New Approach: Waste Materials as Sorbents for Arsenic Removal from Water",
pages = "1286-1277",
number = "11",
volume = "136",
doi = "10.1061/(ASCE)EE.1943-7870.0000266"
}

Jovanović, B. M.,& Rajaković, L. V.. (2010). New Approach: Waste Materials as Sorbents for Arsenic Removal from Water. in Journal of Environmental Engineering, 136(11), 1277-1286.
https://doi.org/10.1061/(ASCE)EE.1943-7870.0000266

Jovanović BM, Rajaković LV. New Approach: Waste Materials as Sorbents for Arsenic Removal from Water. in Journal of Environmental Engineering. 2010;136(11):1277-1286.
doi:10.1061/(ASCE)EE.1943-7870.0000266 .

Jovanović, Branislava M., Rajaković, Ljubinka V., "New Approach: Waste Materials as Sorbents for Arsenic Removal from Water" in Journal of Environmental Engineering, 136, no. 11 (2010):1277-1286,
https://doi.org/10.1061/(ASCE)EE.1943-7870.0000266 . .

TY  - JOUR
AU  - Zarkovic, Darja
AU  - Todorović, Žaklina
AU  - Krgovic, Milorad
AU  - Rajaković, Ljubinka V.
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5524
AB  - A suppressed ion chromatography (IC) method for the determination of inorganic anions in process water from paperboard production was developed and validated. Common inorganic anions (Cl(-), NO(3)(-), PO(4)(3-) and SO(4)(2-)) were detected in fresh and process water samples collected from a paperboard production system at 16 characteristic points. It was shown that the use of an IonPac (R)-AS14 column under isocratic conditions with Na(2)CO(3)/NaHCO(3) as the eluent and a suppression device proved to be a reliable analytical solution for the separation of the inorganic anions present in papermaking waters. This IC method is quite satisfactory concerning selectivity and sensitivity, and enables the determination of several inorganic anions over a wide concentration range. According to the obtained results, the total amount of analyzed inorganic anions was below 0.1 g/L, i.e., below the critical value which may trigger operational problems in paper production.
T2  - Journal of the Serbian Chemical Society
T1  - Determination of inorganic anions in papermaking waters by ion chromatography
EP  - 310
IS  - 3
SP  - 301
VL  - 74
DO  - 10.2298/JSC0903301Z
ER  - 

@article{
author = "Zarkovic, Darja and Todorović, Žaklina and Krgovic, Milorad and Rajaković, Ljubinka V.",
year = "2009",
abstract = "A suppressed ion chromatography (IC) method for the determination of inorganic anions in process water from paperboard production was developed and validated. Common inorganic anions (Cl(-), NO(3)(-), PO(4)(3-) and SO(4)(2-)) were detected in fresh and process water samples collected from a paperboard production system at 16 characteristic points. It was shown that the use of an IonPac (R)-AS14 column under isocratic conditions with Na(2)CO(3)/NaHCO(3) as the eluent and a suppression device proved to be a reliable analytical solution for the separation of the inorganic anions present in papermaking waters. This IC method is quite satisfactory concerning selectivity and sensitivity, and enables the determination of several inorganic anions over a wide concentration range. According to the obtained results, the total amount of analyzed inorganic anions was below 0.1 g/L, i.e., below the critical value which may trigger operational problems in paper production.",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of inorganic anions in papermaking waters by ion chromatography",
pages = "310-301",
number = "3",
volume = "74",
doi = "10.2298/JSC0903301Z"
}

Zarkovic, D., Todorović, Ž., Krgovic, M.,& Rajaković, L. V.. (2009). Determination of inorganic anions in papermaking waters by ion chromatography. in Journal of the Serbian Chemical Society, 74(3), 301-310.
https://doi.org/10.2298/JSC0903301Z

Zarkovic D, Todorović Ž, Krgovic M, Rajaković LV. Determination of inorganic anions in papermaking waters by ion chromatography. in Journal of the Serbian Chemical Society. 2009;74(3):301-310.
doi:10.2298/JSC0903301Z .

Zarkovic, Darja, Todorović, Žaklina, Krgovic, Milorad, Rajaković, Ljubinka V., "Determination of inorganic anions in papermaking waters by ion chromatography" in Journal of the Serbian Chemical Society, 74, no. 3 (2009):301-310,
https://doi.org/10.2298/JSC0903301Z . .

TY  - CONF
AU  - Žarković, Darja
AU  - Todorović, Žaklina
AU  - Onjia, Antonije
AU  - Rajaković, Ljubinka
AU  - Krgović, Milorad
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7128
PB  - Krohova : Process Engineering Publisher
C3  - Book of Summaries / 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha, Czech, Republic, August 24-28, 2008
T1  - Ion chromatography usage for inorganic anions determination in papermaking waters
EP  - 453
SP  - 452
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7128
ER  - 

@conference{
author = "Žarković, Darja and Todorović, Žaklina and Onjia, Antonije and Rajaković, Ljubinka and Krgović, Milorad",
year = "2008",
publisher = "Krohova : Process Engineering Publisher",
journal = "Book of Summaries / 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha, Czech, Republic, August 24-28, 2008",
title = "Ion chromatography usage for inorganic anions determination in papermaking waters",
pages = "453-452",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7128"
}

Žarković, D., Todorović, Ž., Onjia, A., Rajaković, L.,& Krgović, M.. (2008). Ion chromatography usage for inorganic anions determination in papermaking waters. in Book of Summaries / 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha, Czech, Republic, August 24-28, 2008
Krohova : Process Engineering Publisher., 452-453.
https://hdl.handle.net/21.15107/rcub_technorep_7128

Žarković D, Todorović Ž, Onjia A, Rajaković L, Krgović M. Ion chromatography usage for inorganic anions determination in papermaking waters. in Book of Summaries / 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha, Czech, Republic, August 24-28, 2008. 2008;:452-453.
https://hdl.handle.net/21.15107/rcub_technorep_7128 .

Žarković, Darja, Todorović, Žaklina, Onjia, Antonije, Rajaković, Ljubinka, Krgović, Milorad, "Ion chromatography usage for inorganic anions determination in papermaking waters" in Book of Summaries / 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha, Czech, Republic, August 24-28, 2008 (2008):452-453,
https://hdl.handle.net/21.15107/rcub_technorep_7128 .

TY  - CONF
AU  - Žarković, Darja
AU  - Todorović, Žaklina
AU  - Onjia, Antonije
AU  - Rajaković, Ljubinka
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7230
PB  - Beograd : Udruženje za tehnologiju vode i sanitarno inženjerstvo
C3  - Zbornik radova / Trideset osma međunarodna konferencija Otpadne vode, komunalni čvrsti otpad i opasan otpad, 14-17. april 2008. godine, Vršac
T1  - Mogućnosti primene jonske hromatografije u kontroli kvaliteta voda papirne industrije
EP  - 68
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7230
ER  - 

@conference{
author = "Žarković, Darja and Todorović, Žaklina and Onjia, Antonije and Rajaković, Ljubinka",
year = "2008",
publisher = "Beograd : Udruženje za tehnologiju vode i sanitarno inženjerstvo",
journal = "Zbornik radova / Trideset osma međunarodna konferencija Otpadne vode, komunalni čvrsti otpad i opasan otpad, 14-17. april 2008. godine, Vršac",
title = "Mogućnosti primene jonske hromatografije u kontroli kvaliteta voda papirne industrije",
pages = "68-64",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7230"
}

Žarković, D., Todorović, Ž., Onjia, A.,& Rajaković, L.. (2008). Mogućnosti primene jonske hromatografije u kontroli kvaliteta voda papirne industrije. in Zbornik radova / Trideset osma međunarodna konferencija Otpadne vode, komunalni čvrsti otpad i opasan otpad, 14-17. april 2008. godine, Vršac
Beograd : Udruženje za tehnologiju vode i sanitarno inženjerstvo., 64-68.
https://hdl.handle.net/21.15107/rcub_technorep_7230

Žarković D, Todorović Ž, Onjia A, Rajaković L. Mogućnosti primene jonske hromatografije u kontroli kvaliteta voda papirne industrije. in Zbornik radova / Trideset osma međunarodna konferencija Otpadne vode, komunalni čvrsti otpad i opasan otpad, 14-17. april 2008. godine, Vršac. 2008;:64-68.
https://hdl.handle.net/21.15107/rcub_technorep_7230 .

Žarković, Darja, Todorović, Žaklina, Onjia, Antonije, Rajaković, Ljubinka, "Mogućnosti primene jonske hromatografije u kontroli kvaliteta voda papirne industrije" in Zbornik radova / Trideset osma međunarodna konferencija Otpadne vode, komunalni čvrsti otpad i opasan otpad, 14-17. april 2008. godine, Vršac (2008):64-68,
https://hdl.handle.net/21.15107/rcub_technorep_7230 .

TY  - CONF
AU  - Radetić, Maja
AU  - Rajaković, Ljubinka
AU  - Jocić, Dragan
AU  - Jovančić, Petar
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6565
AB  - Tekstilna industrija je veliki potrošač vode i proizvođač velikih količina otpadnih voda. Otpadne vode iz bojačnica predstavljaju značajan izvor zagađenja s obzirom na veliki broj jedinjenja koja, pored boje, ulaze u sastav kupatila za bojenje. Sve rigorozniji ekološki propisi postavljaju nove zahteve tekstilnoj industriji, pa se u cilju dobijanja otpadne vode odgovarajućeg kvaliteta, konvencionalna obrada prečišćavanja u aktivnom mulju mora kombinovati sa efikasnijim hemijskim i fizičkim postupcima kao što su flokulacija, oksidacija, adsorpcija ili filtracija.
AB  - Textile industry is great consumer of water and producer of high amounts of effluents. Dyehouse effluents tend to be significant source of pollution due to numerous compounds being present in dyebaths together with dyes. Increasingly stringent environmental regulations impose new requests to textile industry. In order to obtain waste-water of appropriate quality, conventional activated sludge treatments should be combined with some more efficient chemical and physical treatments like flocculation, oxidation, adsorption or filtration.
PB  - Udruženje za tehnologiju vode i sanitarno inženjerstvo, Beograd
C3  - Proceedings of International conference ”Waste Waters, Municipal Solid Wastes and Hazardous Wastes"20-23 April, Zlatibor, Serbia and Montenegro
T1  - Purification of Textile Dyehouse Effluents
EP  - 77
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6565
ER  - 

@conference{
author = "Radetić, Maja and Rajaković, Ljubinka and Jocić, Dragan and Jovančić, Petar",
year = "2004",
abstract = "Tekstilna industrija je veliki potrošač vode i proizvođač velikih količina otpadnih voda. Otpadne vode iz bojačnica predstavljaju značajan izvor zagađenja s obzirom na veliki broj jedinjenja koja, pored boje, ulaze u sastav kupatila za bojenje. Sve rigorozniji ekološki propisi postavljaju nove zahteve tekstilnoj industriji, pa se u cilju dobijanja otpadne vode odgovarajućeg kvaliteta, konvencionalna obrada prečišćavanja u aktivnom mulju mora kombinovati sa efikasnijim hemijskim i fizičkim postupcima kao što su flokulacija, oksidacija, adsorpcija ili filtracija., Textile industry is great consumer of water and producer of high amounts of effluents. Dyehouse effluents tend to be significant source of pollution due to numerous compounds being present in dyebaths together with dyes. Increasingly stringent environmental regulations impose new requests to textile industry. In order to obtain waste-water of appropriate quality, conventional activated sludge treatments should be combined with some more efficient chemical and physical treatments like flocculation, oxidation, adsorption or filtration.",
publisher = "Udruženje za tehnologiju vode i sanitarno inženjerstvo, Beograd",
journal = "Proceedings of International conference ”Waste Waters, Municipal Solid Wastes and Hazardous Wastes"20-23 April, Zlatibor, Serbia and Montenegro",
title = "Purification of Textile Dyehouse Effluents",
pages = "77-73",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6565"
}

Radetić, M., Rajaković, L., Jocić, D.,& Jovančić, P.. (2004). Purification of Textile Dyehouse Effluents. in Proceedings of International conference ”Waste Waters, Municipal Solid Wastes and Hazardous Wastes"20-23 April, Zlatibor, Serbia and Montenegro
Udruženje za tehnologiju vode i sanitarno inženjerstvo, Beograd., 73-77.
https://hdl.handle.net/21.15107/rcub_technorep_6565

Radetić M, Rajaković L, Jocić D, Jovančić P. Purification of Textile Dyehouse Effluents. in Proceedings of International conference ”Waste Waters, Municipal Solid Wastes and Hazardous Wastes"20-23 April, Zlatibor, Serbia and Montenegro. 2004;:73-77.
https://hdl.handle.net/21.15107/rcub_technorep_6565 .

Radetić, Maja, Rajaković, Ljubinka, Jocić, Dragan, Jovančić, Petar, "Purification of Textile Dyehouse Effluents" in Proceedings of International conference ”Waste Waters, Municipal Solid Wastes and Hazardous Wastes"20-23 April, Zlatibor, Serbia and Montenegro (2004):73-77,
https://hdl.handle.net/21.15107/rcub_technorep_6565 .

TY  - CONF
AU  - Radetić, Maja
AU  - Jocić, Dragan
AU  - Jovančić, Petar
AU  - Rajaković, Ljubinka
AU  - Thomas, Helga
AU  - Petrović, Zoran Lj.
PY  - 2002
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6509
PB  - Faculty of Sciences and Mathematics, Department of Physics, Niš
C3  - 21st Summer School and International Symposium on the Physics of Ionized Gases, August 26-30, 2002, Soko Banja, Yugoslavia, Contributed papers & Abstracts of Invited Lectures, Topical Invited Lectures and Progress Reports
T1  - Activation of Wool Fibre Surface by Air Low-Temperature Plasma for an Application of Biopolymer
EP  - 489
SP  - 486
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6509
ER  - 

@conference{
author = "Radetić, Maja and Jocić, Dragan and Jovančić, Petar and Rajaković, Ljubinka and Thomas, Helga and Petrović, Zoran Lj.",
year = "2002",
publisher = "Faculty of Sciences and Mathematics, Department of Physics, Niš",
journal = "21st Summer School and International Symposium on the Physics of Ionized Gases, August 26-30, 2002, Soko Banja, Yugoslavia, Contributed papers & Abstracts of Invited Lectures, Topical Invited Lectures and Progress Reports",
title = "Activation of Wool Fibre Surface by Air Low-Temperature Plasma for an Application of Biopolymer",
pages = "489-486",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6509"
}

Radetić, M., Jocić, D., Jovančić, P., Rajaković, L., Thomas, H.,& Petrović, Z. Lj.. (2002). Activation of Wool Fibre Surface by Air Low-Temperature Plasma for an Application of Biopolymer. in 21st Summer School and International Symposium on the Physics of Ionized Gases, August 26-30, 2002, Soko Banja, Yugoslavia, Contributed papers & Abstracts of Invited Lectures, Topical Invited Lectures and Progress Reports
Faculty of Sciences and Mathematics, Department of Physics, Niš., 486-489.
https://hdl.handle.net/21.15107/rcub_technorep_6509

Radetić M, Jocić D, Jovančić P, Rajaković L, Thomas H, Petrović ZL. Activation of Wool Fibre Surface by Air Low-Temperature Plasma for an Application of Biopolymer. in 21st Summer School and International Symposium on the Physics of Ionized Gases, August 26-30, 2002, Soko Banja, Yugoslavia, Contributed papers & Abstracts of Invited Lectures, Topical Invited Lectures and Progress Reports. 2002;:486-489.
https://hdl.handle.net/21.15107/rcub_technorep_6509 .

Radetić, Maja, Jocić, Dragan, Jovančić, Petar, Rajaković, Ljubinka, Thomas, Helga, Petrović, Zoran Lj., "Activation of Wool Fibre Surface by Air Low-Temperature Plasma for an Application of Biopolymer" in 21st Summer School and International Symposium on the Physics of Ionized Gases, August 26-30, 2002, Soko Banja, Yugoslavia, Contributed papers & Abstracts of Invited Lectures, Topical Invited Lectures and Progress Reports (2002):486-489,
https://hdl.handle.net/21.15107/rcub_technorep_6509 .

TY  - CONF
AU  - Radetić, Maja
AU  - Jocić, Dragan
AU  - Jovančić, Petar
AU  - Rajaković, Ljubinka
AU  - Potkonjak, Branislav
AU  - Petrović, Zoran Lj.
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6518
AB  - The aim of this study was to investigate the sorption properties of recycled wool based non-woven material for heavy metal ions. To improve sorption properties wool material was treated with air low-temperature plasma (LTP) and/or biopolymer chitosan (CHT). The rate and extent of uptake of various metal cations (Pb+2, Cu+2, Zn+2) by wool, kinetics of adsorption, as well as the influence of concentration, pH and temperature on the sorption process were determined. It was found that wool even as a recycled material efficiently binds metal cations in all investigated cases. Recycled non-woven wool material is good sorbent for Pb+2 ions and it seems that it does not need any modification to improve this property. The modification of the material with LTP and/or CHT does not pass over 5 % of metal uptake improvement. Sorption properties for Cu+2 Ions improve about 10 % with LTP+CHT modification of the sorbent material, but metal salt solution still contains considerable amount of residual metal in solution (>30 %) even alter 24 hours of adsorption. The improvement in Zn+2 ions sorption is the most obvious with sorbent material modification as the LTP+CHT modified wool adsorbs 84 % more Zn+2 Ions than unmodified sorbent after 24 hours. The percentage of Zn+2 ions remaining in the solution is still considerable, but it improves from 72 % to 48 %. The further improvement in lead and copper sorption properties could be obtained by increasing pH and temperature of metal salt solution. The results indicate that the investigated non-woven recycled wool based sorbent material is potentially useful low-cost substrate for removing heavy metals from industrial effluents and other water sources.
PB  - University of Minho, Portugal
C3  - Proceedings of the 1st AUTEX Conference-Technical Textiles: Designing Textiles for Technical Applications, 26-29 June 2001, Povoa de Varzim, Portugal
T1  - Recycled Wool Based Non-Woven Material as Sorbent for Heavy Metals
EP  - 420
SP  - 414
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6518
ER  - 

@conference{
author = "Radetić, Maja and Jocić, Dragan and Jovančić, Petar and Rajaković, Ljubinka and Potkonjak, Branislav and Petrović, Zoran Lj.",
year = "2001",
abstract = "The aim of this study was to investigate the sorption properties of recycled wool based non-woven material for heavy metal ions. To improve sorption properties wool material was treated with air low-temperature plasma (LTP) and/or biopolymer chitosan (CHT). The rate and extent of uptake of various metal cations (Pb+2, Cu+2, Zn+2) by wool, kinetics of adsorption, as well as the influence of concentration, pH and temperature on the sorption process were determined. It was found that wool even as a recycled material efficiently binds metal cations in all investigated cases. Recycled non-woven wool material is good sorbent for Pb+2 ions and it seems that it does not need any modification to improve this property. The modification of the material with LTP and/or CHT does not pass over 5 % of metal uptake improvement. Sorption properties for Cu+2 Ions improve about 10 % with LTP+CHT modification of the sorbent material, but metal salt solution still contains considerable amount of residual metal in solution (>30 %) even alter 24 hours of adsorption. The improvement in Zn+2 ions sorption is the most obvious with sorbent material modification as the LTP+CHT modified wool adsorbs 84 % more Zn+2 Ions than unmodified sorbent after 24 hours. The percentage of Zn+2 ions remaining in the solution is still considerable, but it improves from 72 % to 48 %. The further improvement in lead and copper sorption properties could be obtained by increasing pH and temperature of metal salt solution. The results indicate that the investigated non-woven recycled wool based sorbent material is potentially useful low-cost substrate for removing heavy metals from industrial effluents and other water sources.",
publisher = "University of Minho, Portugal",
journal = "Proceedings of the 1st AUTEX Conference-Technical Textiles: Designing Textiles for Technical Applications, 26-29 June 2001, Povoa de Varzim, Portugal",
title = "Recycled Wool Based Non-Woven Material as Sorbent for Heavy Metals",
pages = "420-414",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6518"
}

Radetić, M., Jocić, D., Jovančić, P., Rajaković, L., Potkonjak, B.,& Petrović, Z. Lj.. (2001). Recycled Wool Based Non-Woven Material as Sorbent for Heavy Metals. in Proceedings of the 1st AUTEX Conference-Technical Textiles: Designing Textiles for Technical Applications, 26-29 June 2001, Povoa de Varzim, Portugal
University of Minho, Portugal., 1, 414-420.
https://hdl.handle.net/21.15107/rcub_technorep_6518

Radetić M, Jocić D, Jovančić P, Rajaković L, Potkonjak B, Petrović ZL. Recycled Wool Based Non-Woven Material as Sorbent for Heavy Metals. in Proceedings of the 1st AUTEX Conference-Technical Textiles: Designing Textiles for Technical Applications, 26-29 June 2001, Povoa de Varzim, Portugal. 2001;1:414-420.
https://hdl.handle.net/21.15107/rcub_technorep_6518 .

Radetić, Maja, Jocić, Dragan, Jovančić, Petar, Rajaković, Ljubinka, Potkonjak, Branislav, Petrović, Zoran Lj., "Recycled Wool Based Non-Woven Material as Sorbent for Heavy Metals" in Proceedings of the 1st AUTEX Conference-Technical Textiles: Designing Textiles for Technical Applications, 26-29 June 2001, Povoa de Varzim, Portugal, 1 (2001):414-420,
https://hdl.handle.net/21.15107/rcub_technorep_6518 .

TY  - CONF
AU  - Onjia, Antonije E.
AU  - Milonjić, Slobodan K.
AU  - Rajaković, Ljubinka Lj.
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7133
C3  - Book of Abstracts / 2nd International Conference of the chemical Societies of the South-Eastern European Countries, June 6-7, 2000, Halkidiki, Greece
T1  - Distribution of adsorption energy on colloidal chromia particles
SP  - 176
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7133
ER  - 

@conference{
author = "Onjia, Antonije E. and Milonjić, Slobodan K. and Rajaković, Ljubinka Lj.",
year = "2000",
journal = "Book of Abstracts / 2nd International Conference of the chemical Societies of the South-Eastern European Countries, June 6-7, 2000, Halkidiki, Greece",
title = "Distribution of adsorption energy on colloidal chromia particles",
pages = "176",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7133"
}

Onjia, A. E., Milonjić, S. K.,& Rajaković, L. Lj.. (2000). Distribution of adsorption energy on colloidal chromia particles. in Book of Abstracts / 2nd International Conference of the chemical Societies of the South-Eastern European Countries, June 6-7, 2000, Halkidiki, Greece, 2, 176.
https://hdl.handle.net/21.15107/rcub_technorep_7133

Onjia AE, Milonjić SK, Rajaković LL. Distribution of adsorption energy on colloidal chromia particles. in Book of Abstracts / 2nd International Conference of the chemical Societies of the South-Eastern European Countries, June 6-7, 2000, Halkidiki, Greece. 2000;2:176.
https://hdl.handle.net/21.15107/rcub_technorep_7133 .

Onjia, Antonije E., Milonjić, Slobodan K., Rajaković, Ljubinka Lj., "Distribution of adsorption energy on colloidal chromia particles" in Book of Abstracts / 2nd International Conference of the chemical Societies of the South-Eastern European Countries, June 6-7, 2000, Halkidiki, Greece, 2 (2000):176,
https://hdl.handle.net/21.15107/rcub_technorep_7133 .

TY  - CONF
AU  - Onjia, Antonije
AU  - Stevanović, Slavica
AU  - Rajaković, Ljubinka
AU  - Mitrović, Milan
AU  - Korenmann, Yakov I.
PY  - 1996
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6536
AB  - In this paper the feasibility of applying liquid membrane pertraction to the copper
recovery from aqueous effluents has been examined. A continuos laboratory-scale
hollow fiber-in-fiber type membrane pertractor was constructed to solve a variety
of problems encountered in the conventional solvent extraction equipment.
Copper-ions present in the feed solution were transferred through an organic
liquid containing 2-hydroxy-5-nonylacetophenone oxim in kerosene and
concentrated in an acid solution on the strip side. The operational factors such as
flow rates of the three liquid streams were considered. The overall mass transfer
rate is greatly influenced by the resistances in the aqueous film boundary layer on
the feed side, and by the rate of interfacial reaction taking place at organic-strip
interface.
C3  - International Ecological Congress, Voronezh, Russia, September 22-28
T1  - Copper Separation from Aqueous Effluents by Liquid Membrane Pertraction
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6536
ER  - 

@conference{
author = "Onjia, Antonije and Stevanović, Slavica and Rajaković, Ljubinka and Mitrović, Milan and Korenmann, Yakov I.",
year = "1996",
abstract = "In this paper the feasibility of applying liquid membrane pertraction to the copper
recovery from aqueous effluents has been examined. A continuos laboratory-scale
hollow fiber-in-fiber type membrane pertractor was constructed to solve a variety
of problems encountered in the conventional solvent extraction equipment.
Copper-ions present in the feed solution were transferred through an organic
liquid containing 2-hydroxy-5-nonylacetophenone oxim in kerosene and
concentrated in an acid solution on the strip side. The operational factors such as
flow rates of the three liquid streams were considered. The overall mass transfer
rate is greatly influenced by the resistances in the aqueous film boundary layer on
the feed side, and by the rate of interfacial reaction taking place at organic-strip
interface.",
journal = "International Ecological Congress, Voronezh, Russia, September 22-28",
title = "Copper Separation from Aqueous Effluents by Liquid Membrane Pertraction",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6536"
}

Onjia, A., Stevanović, S., Rajaković, L., Mitrović, M.,& Korenmann, Y. I.. (1996). Copper Separation from Aqueous Effluents by Liquid Membrane Pertraction. in International Ecological Congress, Voronezh, Russia, September 22-28.
https://hdl.handle.net/21.15107/rcub_technorep_6536

Onjia A, Stevanović S, Rajaković L, Mitrović M, Korenmann YI. Copper Separation from Aqueous Effluents by Liquid Membrane Pertraction. in International Ecological Congress, Voronezh, Russia, September 22-28. 1996;.
https://hdl.handle.net/21.15107/rcub_technorep_6536 .

Onjia, Antonije, Stevanović, Slavica, Rajaković, Ljubinka, Mitrović, Milan, Korenmann, Yakov I., "Copper Separation from Aqueous Effluents by Liquid Membrane Pertraction" in International Ecological Congress, Voronezh, Russia, September 22-28 (1996),
https://hdl.handle.net/21.15107/rcub_technorep_6536 .

TY  - CONF
AU  - Onjia, Antonije
AU  - Stevanović, Slavica
AU  - Rajaković, Ljubinka
AU  - Mitrović, Milan
AU  - Korenmann, Yakov I.
PY  - 1996
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6535
AB  - In the present work, the recovery of indium from sulfate media using a continuos-type membrane
pertractor with hollow fiber geometry was investigated as a study of the feasibility of the industrial
application of this pertraction technique. Separation and enrichment of indium with di-(2-
ethylhexyl) phosphoric acid in kerosene in hollow fiber-in-fiber membrane pertractor were carried
out simultaneously. A series of experiments on the pertraction of indium was performed to
investigated the effect of various experimental conditions on the permeation rate. The mechanism
of indium pertraction through three-phase membrane system can be explained by diffusion model
accompanied by two interfacial reactions.
C3  - International Ecological Congress, Voronezh, Russia, September 22-28
T1  - Recovery of Indium in a Hollow Fiber Membrane Pertractor
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6535
ER  - 

@conference{
author = "Onjia, Antonije and Stevanović, Slavica and Rajaković, Ljubinka and Mitrović, Milan and Korenmann, Yakov I.",
year = "1996",
abstract = "In the present work, the recovery of indium from sulfate media using a continuos-type membrane
pertractor with hollow fiber geometry was investigated as a study of the feasibility of the industrial
application of this pertraction technique. Separation and enrichment of indium with di-(2-
ethylhexyl) phosphoric acid in kerosene in hollow fiber-in-fiber membrane pertractor were carried
out simultaneously. A series of experiments on the pertraction of indium was performed to
investigated the effect of various experimental conditions on the permeation rate. The mechanism
of indium pertraction through three-phase membrane system can be explained by diffusion model
accompanied by two interfacial reactions.",
journal = "International Ecological Congress, Voronezh, Russia, September 22-28",
title = "Recovery of Indium in a Hollow Fiber Membrane Pertractor",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6535"
}

Onjia, A., Stevanović, S., Rajaković, L., Mitrović, M.,& Korenmann, Y. I.. (1996). Recovery of Indium in a Hollow Fiber Membrane Pertractor. in International Ecological Congress, Voronezh, Russia, September 22-28.
https://hdl.handle.net/21.15107/rcub_technorep_6535

Onjia A, Stevanović S, Rajaković L, Mitrović M, Korenmann YI. Recovery of Indium in a Hollow Fiber Membrane Pertractor. in International Ecological Congress, Voronezh, Russia, September 22-28. 1996;.
https://hdl.handle.net/21.15107/rcub_technorep_6535 .

Onjia, Antonije, Stevanović, Slavica, Rajaković, Ljubinka, Mitrović, Milan, Korenmann, Yakov I., "Recovery of Indium in a Hollow Fiber Membrane Pertractor" in International Ecological Congress, Voronezh, Russia, September 22-28 (1996),
https://hdl.handle.net/21.15107/rcub_technorep_6535 .