TY  - JOUR
AU  - Radovanović, Dragana
AU  - Dikić, Jelena
AU  - Štulović, Marija
AU  - Anđić, Zoran
AU  - Kamberović, Željko
AU  - Jevtić, Sanja
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6300
AB  - Low-cost and easily available natural zeolite is a promising adsorbent for metal ions removal in wastewater treatment. The possibility of using zeolitic tuff from Serbia in the form of Na-enriched natural zeolite (Na-Z) for the adsorption of Pb2+, Zn2+, Cu2+, and Ni2+ ions from wastewater was investigated in the presented paper. The research included Na-Z characterization and determination of adsorption kinetics in individual ion adsorption tests using Weber-Morris intraparticle diffusion model, non-linear pseudo-first-order (PFO), pseudo-second-order (PSO) and mixed-order (MO) kinetic models. The results indicate that the adsorption processes of metal ions on Na-Z are complex processes dominated by multiple rate-limiting mechanisms and best defined by the MO model. The mechanisms of ion diffusion and adsorption to active sites are equally represented in the Pb2+ adsorption process. The mechanism of ion adsorption on the active sites is the rate-limiting step in the Zn2+ adsorption process, while in the case of the Cu2+ and Ni2+ adsorption ion diffusion is the rate-limiting kinetic mechanism. Within the MO model, the PFO rate (external/internal diffusion) and the PSO rate (adsorption on active sites) were calculated and results were applied to a multicomponent wastewater sample in order to determine and explain the adsorption efficiency in wastewater treatment. The results show that the rate of adsorption of individual metal ions and the efficiency of ion removal from a multicomponent wastewater sample are influenced by several factors including the radius of the hydrated ion and the free energy of hydration. The achieved removal of metal ions by Na-Z is Pb2+ (89%) > Cu2+ (72%) > Zn2+ (61%) > Ni2+ (58%) and defines Na-enriched natural zeolite as an effective adsorbent in wastewater treatment.
PB  - Association of Metallurgical Engineers of Serbia AMES
T2  - Metallurgical and Materials Engineering
T1  - Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach
VL  - 29
IS  - 3
SP  - 20
EP  - 35
DO  - 10.56801/MME1007
ER  - 

@article{
author = "Radovanović, Dragana and Dikić, Jelena and Štulović, Marija and Anđić, Zoran and Kamberović, Željko and Jevtić, Sanja",
year = "2023",
abstract = "Low-cost and easily available natural zeolite is a promising adsorbent for metal ions removal in wastewater treatment. The possibility of using zeolitic tuff from Serbia in the form of Na-enriched natural zeolite (Na-Z) for the adsorption of Pb2+, Zn2+, Cu2+, and Ni2+ ions from wastewater was investigated in the presented paper. The research included Na-Z characterization and determination of adsorption kinetics in individual ion adsorption tests using Weber-Morris intraparticle diffusion model, non-linear pseudo-first-order (PFO), pseudo-second-order (PSO) and mixed-order (MO) kinetic models. The results indicate that the adsorption processes of metal ions on Na-Z are complex processes dominated by multiple rate-limiting mechanisms and best defined by the MO model. The mechanisms of ion diffusion and adsorption to active sites are equally represented in the Pb2+ adsorption process. The mechanism of ion adsorption on the active sites is the rate-limiting step in the Zn2+ adsorption process, while in the case of the Cu2+ and Ni2+ adsorption ion diffusion is the rate-limiting kinetic mechanism. Within the MO model, the PFO rate (external/internal diffusion) and the PSO rate (adsorption on active sites) were calculated and results were applied to a multicomponent wastewater sample in order to determine and explain the adsorption efficiency in wastewater treatment. The results show that the rate of adsorption of individual metal ions and the efficiency of ion removal from a multicomponent wastewater sample are influenced by several factors including the radius of the hydrated ion and the free energy of hydration. The achieved removal of metal ions by Na-Z is Pb2+ (89%) > Cu2+ (72%) > Zn2+ (61%) > Ni2+ (58%) and defines Na-enriched natural zeolite as an effective adsorbent in wastewater treatment.",
publisher = "Association of Metallurgical Engineers of Serbia AMES",
journal = "Metallurgical and Materials Engineering",
title = "Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach",
volume = "29",
number = "3",
pages = "20-35",
doi = "10.56801/MME1007"
}

Radovanović, D., Dikić, J., Štulović, M., Anđić, Z., Kamberović, Ž.,& Jevtić, S.. (2023). Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia AMES., 29(3), 20-35.
https://doi.org/10.56801/MME1007

Radovanović D, Dikić J, Štulović M, Anđić Z, Kamberović Ž, Jevtić S. Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach. in Metallurgical and Materials Engineering. 2023;29(3):20-35.
doi:10.56801/MME1007 .

Radovanović, Dragana, Dikić, Jelena, Štulović, Marija, Anđić, Zoran, Kamberović, Željko, Jevtić, Sanja, "Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach" in Metallurgical and Materials Engineering, 29, no. 3 (2023):20-35,
https://doi.org/10.56801/MME1007 . .

Kamberović, Ž., Anđić, Z., Štulović, M., Radovanović, D., Jevtić, S.,& Nikolić, V.. (2023). Tehnološki postupak tretmana otpadnih voda nastalih na proizvodnom kompleksu „EcoMet Reciklaža“ d.o.o. u Zajači. .
https://hdl.handle.net/21.15107/rcub_cherry_6301

Kamberović Ž, Anđić Z, Štulović M, Radovanović D, Jevtić S, Nikolić V. Tehnološki postupak tretmana otpadnih voda nastalih na proizvodnom kompleksu „EcoMet Reciklaža“ d.o.o. u Zajači. 2023;.
https://hdl.handle.net/21.15107/rcub_cherry_6301 .

Kamberović, Željko, Anđić, Zoran, Štulović, Marija, Radovanović, Dragana, Jevtić, Sanja, Nikolić, Vesna, "Tehnološki postupak tretmana otpadnih voda nastalih na proizvodnom kompleksu „EcoMet Reciklaža“ d.o.o. u Zajači" (2023),
https://hdl.handle.net/21.15107/rcub_cherry_6301 .

TY  - JOUR
AU  - Đokić, Jovana
AU  - Radovanović, Dragana
AU  - Nikolovski, Zlatko
AU  - Anđić, Zoran
AU  - Kamberović, Željko
PY  - 2021
UR  - https://www.mdpi.com/2075-4701/11/9/1383
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4666
AB  - In order to reflect possible issues in future sole e-waste processing, an electrolyte of complex chemical composition reflecting system of sole e-waste processing was obtained by following a specially designed pyro-electrometallurgical method. The obtained non-standard electrolyte was further used for the purpose of comprehensive metal interference evaluation on the copper solvent extraction (SX) process. Optimization of the process included a variation of several process parameters, allowing determination of the effect of the most abundant and potentially the most influential impurities (Ni, Sn, Fe, and Zn) and 14 other trace elements. Moreover, comparing three commercial extractants of different active chelating groups, it was determined that branched aldoxime reagent is favorable for Cu extraction from the chemically complex system, as can be expected in future e-waste recycling. The results of this study showed that, under optimal conditions of 20 vol.% extractant concentration, feed pH 1.5, O/A ratio 3, and 10-min phase contact time, 88.1% of one stage Cu extraction was achieved. Co-extraction of the Fe, Zn, Ni, and Sn was under 8%, while Pb and trace elements were negligible. Optimal conditions (H2SO4 180 g/L, O/A = 2, and contact time 5 min) enabled 95.3% Cu stripping and under 6% of the most influential impurities. In addition, an impurity monitoring and distribution methodology enabled a better understanding and design of the process for the more efficient valorization of metals from e-waste.
T2  - Metals
T1  - Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery
VL  - 11
IS  - 9
SP  - 1383
DO  - 10.3390/met11091383
ER  - 

@article{
author = "Đokić, Jovana and Radovanović, Dragana and Nikolovski, Zlatko and Anđić, Zoran and Kamberović, Željko",
year = "2021",
abstract = "In order to reflect possible issues in future sole e-waste processing, an electrolyte of complex chemical composition reflecting system of sole e-waste processing was obtained by following a specially designed pyro-electrometallurgical method. The obtained non-standard electrolyte was further used for the purpose of comprehensive metal interference evaluation on the copper solvent extraction (SX) process. Optimization of the process included a variation of several process parameters, allowing determination of the effect of the most abundant and potentially the most influential impurities (Ni, Sn, Fe, and Zn) and 14 other trace elements. Moreover, comparing three commercial extractants of different active chelating groups, it was determined that branched aldoxime reagent is favorable for Cu extraction from the chemically complex system, as can be expected in future e-waste recycling. The results of this study showed that, under optimal conditions of 20 vol.% extractant concentration, feed pH 1.5, O/A ratio 3, and 10-min phase contact time, 88.1% of one stage Cu extraction was achieved. Co-extraction of the Fe, Zn, Ni, and Sn was under 8%, while Pb and trace elements were negligible. Optimal conditions (H2SO4 180 g/L, O/A = 2, and contact time 5 min) enabled 95.3% Cu stripping and under 6% of the most influential impurities. In addition, an impurity monitoring and distribution methodology enabled a better understanding and design of the process for the more efficient valorization of metals from e-waste.",
journal = "Metals",
title = "Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery",
volume = "11",
number = "9",
pages = "1383",
doi = "10.3390/met11091383"
}

Đokić, J., Radovanović, D., Nikolovski, Z., Anđić, Z.,& Kamberović, Ž.. (2021). Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery. in Metals, 11(9), 1383.
https://doi.org/10.3390/met11091383

Đokić J, Radovanović D, Nikolovski Z, Anđić Z, Kamberović Ž. Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery. in Metals. 2021;11(9):1383.
doi:10.3390/met11091383 .

Đokić, Jovana, Radovanović, Dragana, Nikolovski, Zlatko, Anđić, Zoran, Kamberović, Željko, "Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery" in Metals, 11, no. 9 (2021):1383,
https://doi.org/10.3390/met11091383 . .

TY  - JOUR
AU  - Štulović, Marija
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Anđić, Zoran
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3292
AB  - Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.
PB  - MDPI
T2  - International Journal of Environmental Research and Public Health
T1  - Assessment of leaching characteristics of solidified products containing secondary alkaline lead slag
VL  - 16
IS  - 11
DO  - 10.3390/ijerph16112005
ER  - 

@article{
author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran",
year = "2019",
abstract = "Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.",
publisher = "MDPI",
journal = "International Journal of Environmental Research and Public Health",
title = "Assessment of leaching characteristics of solidified products containing secondary alkaline lead slag",
volume = "16",
number = "11",
doi = "10.3390/ijerph16112005"
}

Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M.,& Anđić, Z.. (2019). Assessment of leaching characteristics of solidified products containing secondary alkaline lead slag. in International Journal of Environmental Research and Public Health
MDPI., 16(11).
https://doi.org/10.3390/ijerph16112005

Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z. Assessment of leaching characteristics of solidified products containing secondary alkaline lead slag. in International Journal of Environmental Research and Public Health. 2019;16(11).
doi:10.3390/ijerph16112005 .

Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, "Assessment of leaching characteristics of solidified products containing secondary alkaline lead slag" in International Journal of Environmental Research and Public Health, 16, no. 11 (2019),
https://doi.org/10.3390/ijerph16112005 . .

TY  - JOUR
AU  - Štulović, Marija
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Anđić, Zoran
AU  - Ranitović, Milisav
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3695
AB  - Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+ 1 mm) was returned to the recycling process. Finer fraction (− 1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg−1, 600 min−1, 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol−1. Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.
PB  - Springer Japan
T2  - Journal of Material Cycles and Waste Management
T1  - Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products
VL  - 21
IS  - 6
SP  - 1402
EP  - 1413
DO  - 10.1007/s10163-019-00892-8
ER  - 

@article{
author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran and Ranitović, Milisav",
year = "2019",
abstract = "Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+ 1 mm) was returned to the recycling process. Finer fraction (− 1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg−1, 600 min−1, 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol−1. Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.",
publisher = "Springer Japan",
journal = "Journal of Material Cycles and Waste Management",
title = "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products",
volume = "21",
number = "6",
pages = "1402-1413",
doi = "10.1007/s10163-019-00892-8"
}

Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M., Anđić, Z.,& Ranitović, M.. (2019). Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management
Springer Japan., 21(6), 1402-1413.
https://doi.org/10.1007/s10163-019-00892-8

Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z, Ranitović M. Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management. 2019;21(6):1402-1413.
doi:10.1007/s10163-019-00892-8 .

Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, Ranitović, Milisav, "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products" in Journal of Material Cycles and Waste Management, 21, no. 6 (2019):1402-1413,
https://doi.org/10.1007/s10163-019-00892-8 . .

TY  - CONF
AU  - Nikolić, Vesna
AU  - Anđić, Zoran
AU  - Radovanović, Dragana
AU  - Uljarević, Jelena
AU  - Stevanović, Maja
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5053
AB  - In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnation
method were examined in the dry methane reforming process. First, reticulated ceramic foams
were impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. The
catalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. The
reforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are the
main products of the dry methane reforming, yields of those gasses were measured and obtained
results were a base for conclusions about selectivity, activity and stability of the catalyst.
Acknowledgement: This work was financially supported by the Ministry of Education, Science
and Technological Development of the Republic of Serbia, Project No. TR - 34033.
PB  - Beograd : Materials Research Society of Serbia
C3  - Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
T1  - Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming
VL  - 44
SP  - 87
EP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5053
ER  - 

@conference{
author = "Nikolić, Vesna and Anđić, Zoran and Radovanović, Dragana and Uljarević, Jelena and Stevanović, Maja",
year = "2018",
abstract = "In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnation
method were examined in the dry methane reforming process. First, reticulated ceramic foams
were impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. The
catalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. The
reforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are the
main products of the dry methane reforming, yields of those gasses were measured and obtained
results were a base for conclusions about selectivity, activity and stability of the catalyst.
Acknowledgement: This work was financially supported by the Ministry of Education, Science
and Technological Development of the Republic of Serbia, Project No. TR - 34033.",
publisher = "Beograd : Materials Research Society of Serbia",
journal = "Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018",
title = "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming",
volume = "44",
pages = "87-87",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5053"
}

Nikolić, V., Anđić, Z., Radovanović, D., Uljarević, J.,& Stevanović, M.. (2018). Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
Beograd : Materials Research Society of Serbia., 44, 87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5053

Nikolić V, Anđić Z, Radovanović D, Uljarević J, Stevanović M. Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018. 2018;44:87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5053 .

Nikolić, Vesna, Anđić, Zoran, Radovanović, Dragana, Uljarević, Jelena, Stevanović, Maja, "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming" in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018, 44 (2018):87-87,
https://hdl.handle.net/21.15107/rcub_cherry_5053 .

TY  - CONF
AU  - Nikolić, Vesna
AU  - Anđić, Zoran
AU  - Radovanović, Dragana
AU  - Uljarević, Jelena
AU  - Stevanović, Maja
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5338
AB  - In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnation
method were examined in the dry methane reforming process. First, reticulated ceramic foams
were impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. The
catalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. The
reforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are the
main products of the dry methane reforming, yields of those gasses were measured and obtained
results were a base for conclusions about selectivity, activity and stability of the catalyst.
PB  - Materials Research Society of Serbia
C3  - 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018
T1  - Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming
SP  - 87
EP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5338
ER  - 

@conference{
author = "Nikolić, Vesna and Anđić, Zoran and Radovanović, Dragana and Uljarević, Jelena and Stevanović, Maja",
year = "2018",
abstract = "In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnation
method were examined in the dry methane reforming process. First, reticulated ceramic foams
were impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. The
catalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. The
reforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are the
main products of the dry methane reforming, yields of those gasses were measured and obtained
results were a base for conclusions about selectivity, activity and stability of the catalyst.",
publisher = "Materials Research Society of Serbia",
journal = "20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018",
title = "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming",
pages = "87-87",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5338"
}

Nikolić, V., Anđić, Z., Radovanović, D., Uljarević, J.,& Stevanović, M.. (2018). Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018
Materials Research Society of Serbia., 87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5338

Nikolić V, Anđić Z, Radovanović D, Uljarević J, Stevanović M. Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018. 2018;:87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5338 .

Nikolić, Vesna, Anđić, Zoran, Radovanović, Dragana, Uljarević, Jelena, Stevanović, Maja, "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming" in 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018 (2018):87-87,
https://hdl.handle.net/21.15107/rcub_cherry_5338 .

TY  - JOUR
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Anđić, Zoran
AU  - Ranitović, Milisav
AU  - Marković, Branislav
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2185
AB  - Jarosite and neutral leaching residue (NLR) are the greatest environmental problems of hydrometallurgical zinc production due to their high quantity and hazardous content. Pyrometallurgical processes, such as the Waelz process, could be applied to recover valuable metals present in this waste. The paper investigates the possibility of forming environmentally stable Waelz slag after the Waelz process of jarosite and NLR. Waelz slag, obtained using CaO as a conventional alkaline additive in the Waelz process, showed high As and Sb release after the EN 12457-4 standard leaching test. Multiphase equilibrium composition calculations indicated that As and Sb were present as volatile and migratory species in the slag. In order to obtain Waelz slag with more stable matrices that would encapsulate and immobilize pollutants, MgO additions to CaO and different cooling conditions of the slag were further investigated. The efficiency of modification in additives composition and cooling conditions was assessed by EN 12457-4 leaching test and chemical and microstructural characterization (XRF and SEM-EDS analyses) of the Waelz slags. The results show that addition of MgO does not reduce the efficiency of the process, even more it increases leaching resistance of the slags. Concentrations of all investigated metals (As, Ba, Cu, Mo, Pb, Sb, Zn) after the leaching test were below defined limits for non-hazardous waste. Microstructural analyses revealed that MgO remained inert during Waelz process, and thus favoring the formation of amorphous stable structure, which was enhanced by increased cooling rate. All investigated Waelz slags with MgO additions are suitable for further use or safe disposal.
PB  - Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw
T2  - Physicochemical Problems of Mineral Processing
T1  - The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process
VL  - 54
IS  - 2
SP  - 484
EP  - 495
DO  - 10.5277/ppmp1842
ER  - 

@article{
author = "Radovanović, Dragana and Kamberović, Željko and Anđić, Zoran and Ranitović, Milisav and Marković, Branislav",
year = "2018",
abstract = "Jarosite and neutral leaching residue (NLR) are the greatest environmental problems of hydrometallurgical zinc production due to their high quantity and hazardous content. Pyrometallurgical processes, such as the Waelz process, could be applied to recover valuable metals present in this waste. The paper investigates the possibility of forming environmentally stable Waelz slag after the Waelz process of jarosite and NLR. Waelz slag, obtained using CaO as a conventional alkaline additive in the Waelz process, showed high As and Sb release after the EN 12457-4 standard leaching test. Multiphase equilibrium composition calculations indicated that As and Sb were present as volatile and migratory species in the slag. In order to obtain Waelz slag with more stable matrices that would encapsulate and immobilize pollutants, MgO additions to CaO and different cooling conditions of the slag were further investigated. The efficiency of modification in additives composition and cooling conditions was assessed by EN 12457-4 leaching test and chemical and microstructural characterization (XRF and SEM-EDS analyses) of the Waelz slags. The results show that addition of MgO does not reduce the efficiency of the process, even more it increases leaching resistance of the slags. Concentrations of all investigated metals (As, Ba, Cu, Mo, Pb, Sb, Zn) after the leaching test were below defined limits for non-hazardous waste. Microstructural analyses revealed that MgO remained inert during Waelz process, and thus favoring the formation of amorphous stable structure, which was enhanced by increased cooling rate. All investigated Waelz slags with MgO additions are suitable for further use or safe disposal.",
publisher = "Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw",
journal = "Physicochemical Problems of Mineral Processing",
title = "The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process",
volume = "54",
number = "2",
pages = "484-495",
doi = "10.5277/ppmp1842"
}

Radovanović, D., Kamberović, Ž., Anđić, Z., Ranitović, M.,& Marković, B.. (2018). The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process. in Physicochemical Problems of Mineral Processing
Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw., 54(2), 484-495.
https://doi.org/10.5277/ppmp1842

Radovanović D, Kamberović Ž, Anđić Z, Ranitović M, Marković B. The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process. in Physicochemical Problems of Mineral Processing. 2018;54(2):484-495.
doi:10.5277/ppmp1842 .

Radovanović, Dragana, Kamberović, Željko, Anđić, Zoran, Ranitović, Milisav, Marković, Branislav, "The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process" in Physicochemical Problems of Mineral Processing, 54, no. 2 (2018):484-495,
https://doi.org/10.5277/ppmp1842 . .