TY  - JOUR
AU  - Ivanković, Tomislav
AU  - Dikić, Jelena
AU  - du Roscoat, Sabine Rolland
AU  - Dekić, Svjetlana
AU  - Hrenović, Jasna
AU  - Ganjto, Marin
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4091
AB  - Hospital wastewaters can become a route for dissemination of antibiotic-resistant bacteria to the environment if not properly treated. Some of these bacteria are able to survive conventional disinfection treatments (e.g. chlorination, UV irradiation), which evokes the need for novel disinfection methods. The metal-exchanged zeolites were tested as novel antibacterial agents for wastewater treatment. The natural zeolite clinoptilolite enriched with silver (AgNZ) showed far better antibacterial activity towards hospital pathogenic bacterium Acinetobacter baumannii when compared with copper-exchanged zeolite (CuNZ), with minimal bactericidal concentration of 0.25-2 (AgNZ) compared with 32-64 mg L-1 (CuNZ) in a batch system and respective log 5.6 reduction compared with log 0.5 reduction in a flow system with pure bacterial culture. In the flow system with real effluent wastewater from the treatment plant, the removal of carbapenem-resistant bacteria using AgNZ was 90-100% during the 4 days of the experimental run. These results indicate that the AgNZ efficiently removes pathogenic bacteria from the wastewater, including A. baumannii, and is promising as a disinfectant material in a bead filter system.
PB  - Iwa Publishing, London
T2  - Water Science and Technology
T1  - Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter
EP  - 1098
IS  - 6
SP  - 1085
VL  - 80
DO  - 10.2166/wst.2019.348
ER  - 

@article{
author = "Ivanković, Tomislav and Dikić, Jelena and du Roscoat, Sabine Rolland and Dekić, Svjetlana and Hrenović, Jasna and Ganjto, Marin",
year = "2019",
abstract = "Hospital wastewaters can become a route for dissemination of antibiotic-resistant bacteria to the environment if not properly treated. Some of these bacteria are able to survive conventional disinfection treatments (e.g. chlorination, UV irradiation), which evokes the need for novel disinfection methods. The metal-exchanged zeolites were tested as novel antibacterial agents for wastewater treatment. The natural zeolite clinoptilolite enriched with silver (AgNZ) showed far better antibacterial activity towards hospital pathogenic bacterium Acinetobacter baumannii when compared with copper-exchanged zeolite (CuNZ), with minimal bactericidal concentration of 0.25-2 (AgNZ) compared with 32-64 mg L-1 (CuNZ) in a batch system and respective log 5.6 reduction compared with log 0.5 reduction in a flow system with pure bacterial culture. In the flow system with real effluent wastewater from the treatment plant, the removal of carbapenem-resistant bacteria using AgNZ was 90-100% during the 4 days of the experimental run. These results indicate that the AgNZ efficiently removes pathogenic bacteria from the wastewater, including A. baumannii, and is promising as a disinfectant material in a bead filter system.",
publisher = "Iwa Publishing, London",
journal = "Water Science and Technology",
title = "Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter",
pages = "1098-1085",
number = "6",
volume = "80",
doi = "10.2166/wst.2019.348"
}

Ivanković, T., Dikić, J., du Roscoat, S. R., Dekić, S., Hrenović, J.,& Ganjto, M.. (2019). Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter. in Water Science and Technology
Iwa Publishing, London., 80(6), 1085-1098.
https://doi.org/10.2166/wst.2019.348

Ivanković T, Dikić J, du Roscoat SR, Dekić S, Hrenović J, Ganjto M. Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter. in Water Science and Technology. 2019;80(6):1085-1098.
doi:10.2166/wst.2019.348 .

Ivanković, Tomislav, Dikić, Jelena, du Roscoat, Sabine Rolland, Dekić, Svjetlana, Hrenović, Jasna, Ganjto, Marin, "Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter" in Water Science and Technology, 80, no. 6 (2019):1085-1098,
https://doi.org/10.2166/wst.2019.348 . .

TY  - JOUR
AU  - Ivanković, Tomislav
AU  - Hrenović, Jasna
AU  - Itskos, Grigorios
AU  - Koukouzas, Nikolaos
AU  - Kovacević, Davor
AU  - Dikić, Jelena
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2708
AB  - Wood fly ash is an industrial by-product of the combustion of different wood materials and is mostly disposed of as waste on landfills. In our preliminary experiments, wood ash exhibited antibacterial activity against urban wastewater bacteria and we focused on wood fly ash as a potential substrate for wastewater disinfection. The addition of ash at a concentration of 10 g L-1 (1 %) caused an instant increase of pH in urban wastewater and landfill leachate. High pH (10.1-12.7) inactivated bacterial populations in the wastewater and the removal of faecal coliforms and intestinal enterococci after 6 h of contact was 100 % (below the detection limit;  lt 1 CFU per mL) with the most efficient ash sample (ash from combustion of beech) both in urban wastewater and landfill leachate. Properly chosen wood fly ash, i.e. one that tends to increase the pH to the greatest extent, proved to be a very effective disinfection substrate. Considering that water treated with wood ash has a high pH and needs to be neutralised before discharge, ash would be suitable for disinfection of leachates when smaller volumes are treated.
PB  - Inst Medical Research & Occupational Health, Zagreb
T2  - Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology
T1  - Alkaline disinfection of urban wastewater and landfill leachate by wood fly ash
EP  - 375
IS  - 4
SP  - 365
VL  - 65
DO  - 10.2478/10004-1254-65-2014-2546
ER  - 

@article{
author = "Ivanković, Tomislav and Hrenović, Jasna and Itskos, Grigorios and Koukouzas, Nikolaos and Kovacević, Davor and Dikić, Jelena",
year = "2014",
abstract = "Wood fly ash is an industrial by-product of the combustion of different wood materials and is mostly disposed of as waste on landfills. In our preliminary experiments, wood ash exhibited antibacterial activity against urban wastewater bacteria and we focused on wood fly ash as a potential substrate for wastewater disinfection. The addition of ash at a concentration of 10 g L-1 (1 %) caused an instant increase of pH in urban wastewater and landfill leachate. High pH (10.1-12.7) inactivated bacterial populations in the wastewater and the removal of faecal coliforms and intestinal enterococci after 6 h of contact was 100 % (below the detection limit;  lt 1 CFU per mL) with the most efficient ash sample (ash from combustion of beech) both in urban wastewater and landfill leachate. Properly chosen wood fly ash, i.e. one that tends to increase the pH to the greatest extent, proved to be a very effective disinfection substrate. Considering that water treated with wood ash has a high pH and needs to be neutralised before discharge, ash would be suitable for disinfection of leachates when smaller volumes are treated.",
publisher = "Inst Medical Research & Occupational Health, Zagreb",
journal = "Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology",
title = "Alkaline disinfection of urban wastewater and landfill leachate by wood fly ash",
pages = "375-365",
number = "4",
volume = "65",
doi = "10.2478/10004-1254-65-2014-2546"
}

Ivanković, T., Hrenović, J., Itskos, G., Koukouzas, N., Kovacević, D.,& Dikić, J.. (2014). Alkaline disinfection of urban wastewater and landfill leachate by wood fly ash. in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology
Inst Medical Research & Occupational Health, Zagreb., 65(4), 365-375.
https://doi.org/10.2478/10004-1254-65-2014-2546

Ivanković T, Hrenović J, Itskos G, Koukouzas N, Kovacević D, Dikić J. Alkaline disinfection of urban wastewater and landfill leachate by wood fly ash. in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology. 2014;65(4):365-375.
doi:10.2478/10004-1254-65-2014-2546 .

Ivanković, Tomislav, Hrenović, Jasna, Itskos, Grigorios, Koukouzas, Nikolaos, Kovacević, Davor, Dikić, Jelena, "Alkaline disinfection of urban wastewater and landfill leachate by wood fly ash" in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology, 65, no. 4 (2014):365-375,
https://doi.org/10.2478/10004-1254-65-2014-2546 . .

TY  - JOUR
AU  - Hrenović, Jasna
AU  - Dikić, Jelena
AU  - Ivanković, Tomislav
AU  - Rajić, Nevenka
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2226
AB  - The antibacterial activity of natural zeolitized tuffs containing 2.60 wt.% Cu2+, 1.47 Zn2+ or 0.52 Ni2+ were tested. Antibacterial activities of the zeolites against Escherichia coli and Staphylococcus aureus were tested after 1 h and 24 h of exposure to 1 g of the zeolite in 100 mL of three different media, namely Luria Bertani, synthetic wastewater and secondary effluent wastewater. The antibacterial activities of the zeolites in Luria Bertani medium were significantly lower than those in the other media and negatively correlated with the chemical oxygen demand of the media. The Ni-loaded zeolite showed high leaching of Ni2+ (3.44-9.13 wt.% of the Ni2+ loaded) and weak antibacterial activity in the effluent water. Since Cu-loaded zeolite did not leach Cu2+ and the leaching of Zn2+ from Zn-loaded zeolite was low (1.07-1.61 wt.% of the Zn2+ loaded), the strong antibacterial activity classified the Cu- and Zn-loaded zeolite as promising antibacterial materials for disinfection of secondary effluent water.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Antibacterial activity of heavy metal-loaded natural zeolite
EP  - 264
SP  - 260
VL  - 201
DO  - 10.1016/j.jhazmat.2011.11.079
ER  - 

@article{
author = "Hrenović, Jasna and Dikić, Jelena and Ivanković, Tomislav and Rajić, Nevenka",
year = "2012",
abstract = "The antibacterial activity of natural zeolitized tuffs containing 2.60 wt.% Cu2+, 1.47 Zn2+ or 0.52 Ni2+ were tested. Antibacterial activities of the zeolites against Escherichia coli and Staphylococcus aureus were tested after 1 h and 24 h of exposure to 1 g of the zeolite in 100 mL of three different media, namely Luria Bertani, synthetic wastewater and secondary effluent wastewater. The antibacterial activities of the zeolites in Luria Bertani medium were significantly lower than those in the other media and negatively correlated with the chemical oxygen demand of the media. The Ni-loaded zeolite showed high leaching of Ni2+ (3.44-9.13 wt.% of the Ni2+ loaded) and weak antibacterial activity in the effluent water. Since Cu-loaded zeolite did not leach Cu2+ and the leaching of Zn2+ from Zn-loaded zeolite was low (1.07-1.61 wt.% of the Zn2+ loaded), the strong antibacterial activity classified the Cu- and Zn-loaded zeolite as promising antibacterial materials for disinfection of secondary effluent water.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Antibacterial activity of heavy metal-loaded natural zeolite",
pages = "264-260",
volume = "201",
doi = "10.1016/j.jhazmat.2011.11.079"
}

Hrenović, J., Dikić, J., Ivanković, T.,& Rajić, N.. (2012). Antibacterial activity of heavy metal-loaded natural zeolite. in Journal of Hazardous Materials
Elsevier Science Bv, Amsterdam., 201, 260-264.
https://doi.org/10.1016/j.jhazmat.2011.11.079

Hrenović J, Dikić J, Ivanković T, Rajić N. Antibacterial activity of heavy metal-loaded natural zeolite. in Journal of Hazardous Materials. 2012;201:260-264.
doi:10.1016/j.jhazmat.2011.11.079 .

Hrenović, Jasna, Dikić, Jelena, Ivanković, Tomislav, Rajić, Nevenka, "Antibacterial activity of heavy metal-loaded natural zeolite" in Journal of Hazardous Materials, 201 (2012):260-264,
https://doi.org/10.1016/j.jhazmat.2011.11.079 . .