TY  - JOUR
AU  - Petronijević, Nela
AU  - Radovanović, Dragana
AU  - Stanković, Srđan
AU  - Sokić, Miroslav
AU  - Kamberović, Željko
AU  - Onjia, Antonije
AU  - Jovanović, Gvozden
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1208
AB  - Acid mine drainage is a challenging environmental problem caused by mining activities. Long-term  copper  ore  exploitation  and  vast  amounts  of  mining  waste  lead  to  severe  soil  contamination as well as river and groundwater pollution. In this paper, research is focused on utilizing waste mine waters and off-balance parts of the mine deposit (such as flotation tailings) and converting their negative characteristics to an environmentally friendly one. In the  authors’  previous  work,  acid  mine  water  from  Robule,  which  is  part  of  the  Bor  copper  mining and smelting complex in Serbia, was successfully treated using flotation tailings, and the resulting solution was suitable for safe discharge. This paper investigates the characteristics of the solid residue that remained after the treatment of the modified flotation tailings in order to  evaluate  the  possibility  of  its  safe  disposal  back  into  the  environment.  The  solid  residue  was subjected to TCLP and EN 12457-4 tests as standard procedures that assess the leaching characteristics  of  a  material.  The  solid  residue  was  also  exposed  to  long-term  leaching  with  melted  snow  to  simulate  environmental  conditions  for  one  year.  This  drainage  water  was  analyzed and compared with the results of the standard leaching procedures. The investigated treatments lead to improved economic and environmental effects, while the process itself is adjusted to preserve the environment.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
T2  - Metallurgical and Materials Data
T1  - Stability of solid residue after integral treatment of acid mine drainage
EP  - 63
IS  - 2
SP  - 57
VL  - 1
DO  - 10.30544/MMD6
ER  - 

@article{
author = "Petronijević, Nela and Radovanović, Dragana and Stanković, Srđan and Sokić, Miroslav and Kamberović, Željko and Onjia, Antonije and Jovanović, Gvozden",
year = "2023",
abstract = "Acid mine drainage is a challenging environmental problem caused by mining activities. Long-term  copper  ore  exploitation  and  vast  amounts  of  mining  waste  lead  to  severe  soil  contamination as well as river and groundwater pollution. In this paper, research is focused on utilizing waste mine waters and off-balance parts of the mine deposit (such as flotation tailings) and converting their negative characteristics to an environmentally friendly one. In the  authors’  previous  work,  acid  mine  water  from  Robule,  which  is  part  of  the  Bor  copper  mining and smelting complex in Serbia, was successfully treated using flotation tailings, and the resulting solution was suitable for safe discharge. This paper investigates the characteristics of the solid residue that remained after the treatment of the modified flotation tailings in order to  evaluate  the  possibility  of  its  safe  disposal  back  into  the  environment.  The  solid  residue  was subjected to TCLP and EN 12457-4 tests as standard procedures that assess the leaching characteristics  of  a  material.  The  solid  residue  was  also  exposed  to  long-term  leaching  with  melted  snow  to  simulate  environmental  conditions  for  one  year.  This  drainage  water  was  analyzed and compared with the results of the standard leaching procedures. The investigated treatments lead to improved economic and environmental effects, while the process itself is adjusted to preserve the environment.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical and Materials Data",
title = "Stability of solid residue after integral treatment of acid mine drainage",
pages = "63-57",
number = "2",
volume = "1",
doi = "10.30544/MMD6"
}

Petronijević, N., Radovanović, D., Stanković, S., Sokić, M., Kamberović, Ž., Onjia, A.,& Jovanović, G.. (2023). Stability of solid residue after integral treatment of acid mine drainage. in Metallurgical and Materials Data
Belgrade : Association of Metallurgical Engineers of Serbia., 1(2), 57-63.
https://doi.org/10.30544/MMD6

Petronijević N, Radovanović D, Stanković S, Sokić M, Kamberović Ž, Onjia A, Jovanović G. Stability of solid residue after integral treatment of acid mine drainage. in Metallurgical and Materials Data. 2023;1(2):57-63.
doi:10.30544/MMD6 .

Petronijević, Nela, Radovanović, Dragana, Stanković, Srđan, Sokić, Miroslav, Kamberović, Željko, Onjia, Antonije, Jovanović, Gvozden, "Stability of solid residue after integral treatment of acid mine drainage" in Metallurgical and Materials Data, 1, no. 2 (2023):57-63,
https://doi.org/10.30544/MMD6 . .

TY  - CONF
AU  - Vujović, Nela
AU  - Alivojvodić, Vesna
AU  - Sokić, Miroslav
AU  - Jovanović, Gvozden
AU  - Marković, Branislav
AU  - Kamberović, Željko
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/940
AB  - Following the principles of sustainable development and circular economy, an innovative industrial symbiosis approach
has been developed that uses already disposed voluminous waste. The research was focused on the utilization potential
of vast amounts of flotation tailings, fly ash and acidic mine waters. Numerous previous case studies have pointed out the
harmful, long-lasting environmental damage from waste disposal. In this case, the emphasis is on finding a practical
approach for using industrial waste, specifically thermal power plant fly ash, in order to neutralize acidic mine waters
resulting from tailings disposal. The proposed treatment gives waste a practical value, eliminates its harmful effect on the
environment and redefines (lowers) regular waste management costs. In addition, it is possible to obtain valuable metals
by exploiting and reprocessing acidic mine drainage.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2023
T1  - Innovative industrial symbiosis approach for acidic mine drainage neutralization
EP  - 382
SP  - 377
ER  - 

@conference{
author = "Vujović, Nela and Alivojvodić, Vesna and Sokić, Miroslav and Jovanović, Gvozden and Marković, Branislav and Kamberović, Željko",
year = "2023",
abstract = "Following the principles of sustainable development and circular economy, an innovative industrial symbiosis approach
has been developed that uses already disposed voluminous waste. The research was focused on the utilization potential
of vast amounts of flotation tailings, fly ash and acidic mine waters. Numerous previous case studies have pointed out the
harmful, long-lasting environmental damage from waste disposal. In this case, the emphasis is on finding a practical
approach for using industrial waste, specifically thermal power plant fly ash, in order to neutralize acidic mine waters
resulting from tailings disposal. The proposed treatment gives waste a practical value, eliminates its harmful effect on the
environment and redefines (lowers) regular waste management costs. In addition, it is possible to obtain valuable metals
by exploiting and reprocessing acidic mine drainage.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2023",
title = "Innovative industrial symbiosis approach for acidic mine drainage neutralization",
pages = "382-377"
}

Vujović, N., Alivojvodić, V., Sokić, M., Jovanović, G., Marković, B.,& Kamberović, Ž.. (2023). Innovative industrial symbiosis approach for acidic mine drainage neutralization. in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2023
Belgrade : Association of Metallurgical Engineers of Serbia., 377-382.

Vujović N, Alivojvodić V, Sokić M, Jovanović G, Marković B, Kamberović Ž. Innovative industrial symbiosis approach for acidic mine drainage neutralization. in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2023. 2023;:377-382..

Vujović, Nela, Alivojvodić, Vesna, Sokić, Miroslav, Jovanović, Gvozden, Marković, Branislav, Kamberović, Željko, "Innovative industrial symbiosis approach for acidic mine drainage neutralization" in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2023 (2023):377-382.

TY  - CONF
AU  - Jovanović, Gvozden
AU  - Bugarčić, Mladen
AU  - Petronijević, Nela
AU  - Stopić, Srećko
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Friedrich, Bernd
AU  - Sokić, Miroslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/980
AB  - Numerous electronic devices are put out of use every day, and most of them have printed circuit boards (PCBs) that are lased and imbued with various precious and valuable metals in abundant amounts. This makes PCB an unexploited resource of the future from whom many metals such as Cu, Zn, Sn, Al, Li, Co, Nd, Pd, Pt, and Ba can be extracted. Since leaching plastic polymers can lead to the vaporization of toxic fumes, to avoid this the PCB are pyrolyzed. The PCB is crushed and the pyrolyzed product is a powder that can easily be separated into metallic and nonmetalic fractions. The aim of this work is to investigate the influence of ultrasound sonification on the nitric acid leaching of pyrolyzed printed circuit board (PPCB) powder. The impact of ultrasound sonification had a positive effect on the leaching degree for all investigated metals except for Cobalt. The biggest difference in leaching degree was for Lithium while the smallest was for platinum. Because of the complexity of the PPCB powder system overall, the measurement of oxidation-reduction potential (ORP) didn’t yield any insight into the leaching mechanism since the measured values mainly followed the expected trend due to nitric acid degradation.
PB  - Belgrade : Serbian society of corrosion and materials protection (UISKOZAM)
C3  - XXIII YuCorr International Conference
T1  - The effect ultrasound sonification on nitric acid leaching of pyrolyzed printed circuit board powder
EP  - 94
SP  - 86
ER  - 

@conference{
author = "Jovanović, Gvozden and Bugarčić, Mladen and Petronijević, Nela and Stopić, Srećko and Marković, Branislav and Stanković, Srđan and Friedrich, Bernd and Sokić, Miroslav",
year = "2022",
abstract = "Numerous electronic devices are put out of use every day, and most of them have printed circuit boards (PCBs) that are lased and imbued with various precious and valuable metals in abundant amounts. This makes PCB an unexploited resource of the future from whom many metals such as Cu, Zn, Sn, Al, Li, Co, Nd, Pd, Pt, and Ba can be extracted. Since leaching plastic polymers can lead to the vaporization of toxic fumes, to avoid this the PCB are pyrolyzed. The PCB is crushed and the pyrolyzed product is a powder that can easily be separated into metallic and nonmetalic fractions. The aim of this work is to investigate the influence of ultrasound sonification on the nitric acid leaching of pyrolyzed printed circuit board (PPCB) powder. The impact of ultrasound sonification had a positive effect on the leaching degree for all investigated metals except for Cobalt. The biggest difference in leaching degree was for Lithium while the smallest was for platinum. Because of the complexity of the PPCB powder system overall, the measurement of oxidation-reduction potential (ORP) didn’t yield any insight into the leaching mechanism since the measured values mainly followed the expected trend due to nitric acid degradation.",
publisher = "Belgrade : Serbian society of corrosion and materials protection (UISKOZAM)",
journal = "XXIII YuCorr International Conference",
title = "The effect ultrasound sonification on nitric acid leaching of pyrolyzed printed circuit board powder",
pages = "94-86"
}

Jovanović, G., Bugarčić, M., Petronijević, N., Stopić, S., Marković, B., Stanković, S., Friedrich, B.,& Sokić, M.. (2022). The effect ultrasound sonification on nitric acid leaching of pyrolyzed printed circuit board powder. in XXIII YuCorr International Conference
Belgrade : Serbian society of corrosion and materials protection (UISKOZAM)., 86-94.

Jovanović G, Bugarčić M, Petronijević N, Stopić S, Marković B, Stanković S, Friedrich B, Sokić M. The effect ultrasound sonification on nitric acid leaching of pyrolyzed printed circuit board powder. in XXIII YuCorr International Conference. 2022;:86-94..

Jovanović, Gvozden, Bugarčić, Mladen, Petronijević, Nela, Stopić, Srećko, Marković, Branislav, Stanković, Srđan, Friedrich, Bernd, Sokić, Miroslav, "The effect ultrasound sonification on nitric acid leaching of pyrolyzed printed circuit board powder" in XXIII YuCorr International Conference (2022):86-94.

TY  - CONF
AU  - Bugarčić, Mladen
AU  - Jovanović, Gvozden
AU  - Petronijević, Nela
AU  - Marković, Branislav
AU  - Stopić, Srećko
AU  - Friedrich, Bernd
AU  - Sokić, Miroslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/986
AB  - Recent mankind demand for electronic devices is in constant upgrowth, those devices
always contain printed circuit boards (PCB) which are mainly constructed of plastics, semiconductors
and decent content of various metals. Hence, in the end-of-life of those
products, it is highly recommended to recover those materials or functionalize those waste
into other products or feed materials, in order to lessen their harmful impact on the
environment. One of the promising processing procedures is hydrometallurgical treatment,
since it is cost-effective and simple. In order to recover metals as aqueous soluble salts,
crushed and milled PCB is air-pyrolyzed and obtained powder is processed as start material
in leaching experiments. The use of concentrated aqua regia led to the passivation of solid
material and consequently impede the leaching process. Dry-digestion leaching using
concentrated sulfuric acid partially leached some metals. The highest leaching rate (≥70 %)
has been achieved using diluted sulfuric acid (for Al, Ni, Fe, Co, and rare-earth) and copper
yield was highest utilizing 2 M H2SO4 + 3 M H2O2; S/L = 0.1 g/ml. While sulfuric acid has
accomplished some results for enumerated leachates, it achieved limited success for
leaching Ba, Pb, Ag, Au, Pt and Pd. Overall findings imply that hydrometallurgical
procedures may be used but only together with previous separation techniques. That
approach would increase overall leaching with oxidizing agents and enable leaching of
noble metals.
PB  - Split : University of Split, Faculty of Chemistry and Technology
C3  - 3rd International Convention of Scientists, Specialist Employees and Students on the Topic of Environmental Protection in the Republic of Croatia - 3rd ZORH CONVENTION
T1  - Approach on recycling of printed circuit boards (PCB) via hydrometallurgical procedures: Principle and methodology
EP  - 8
SP  - 8
ER  - 

@conference{
author = "Bugarčić, Mladen and Jovanović, Gvozden and Petronijević, Nela and Marković, Branislav and Stopić, Srećko and Friedrich, Bernd and Sokić, Miroslav",
year = "2022",
abstract = "Recent mankind demand for electronic devices is in constant upgrowth, those devices
always contain printed circuit boards (PCB) which are mainly constructed of plastics, semiconductors
and decent content of various metals. Hence, in the end-of-life of those
products, it is highly recommended to recover those materials or functionalize those waste
into other products or feed materials, in order to lessen their harmful impact on the
environment. One of the promising processing procedures is hydrometallurgical treatment,
since it is cost-effective and simple. In order to recover metals as aqueous soluble salts,
crushed and milled PCB is air-pyrolyzed and obtained powder is processed as start material
in leaching experiments. The use of concentrated aqua regia led to the passivation of solid
material and consequently impede the leaching process. Dry-digestion leaching using
concentrated sulfuric acid partially leached some metals. The highest leaching rate (≥70 %)
has been achieved using diluted sulfuric acid (for Al, Ni, Fe, Co, and rare-earth) and copper
yield was highest utilizing 2 M H2SO4 + 3 M H2O2; S/L = 0.1 g/ml. While sulfuric acid has
accomplished some results for enumerated leachates, it achieved limited success for
leaching Ba, Pb, Ag, Au, Pt and Pd. Overall findings imply that hydrometallurgical
procedures may be used but only together with previous separation techniques. That
approach would increase overall leaching with oxidizing agents and enable leaching of
noble metals.",
publisher = "Split : University of Split, Faculty of Chemistry and Technology",
journal = "3rd International Convention of Scientists, Specialist Employees and Students on the Topic of Environmental Protection in the Republic of Croatia - 3rd ZORH CONVENTION",
title = "Approach on recycling of printed circuit boards (PCB) via hydrometallurgical procedures: Principle and methodology",
pages = "8-8"
}

Bugarčić, M., Jovanović, G., Petronijević, N., Marković, B., Stopić, S., Friedrich, B.,& Sokić, M.. (2022). Approach on recycling of printed circuit boards (PCB) via hydrometallurgical procedures: Principle and methodology. in 3rd International Convention of Scientists, Specialist Employees and Students on the Topic of Environmental Protection in the Republic of Croatia - 3rd ZORH CONVENTION
Split : University of Split, Faculty of Chemistry and Technology., 8-8.

Bugarčić M, Jovanović G, Petronijević N, Marković B, Stopić S, Friedrich B, Sokić M. Approach on recycling of printed circuit boards (PCB) via hydrometallurgical procedures: Principle and methodology. in 3rd International Convention of Scientists, Specialist Employees and Students on the Topic of Environmental Protection in the Republic of Croatia - 3rd ZORH CONVENTION. 2022;:8-8..

Bugarčić, Mladen, Jovanović, Gvozden, Petronijević, Nela, Marković, Branislav, Stopić, Srećko, Friedrich, Bernd, Sokić, Miroslav, "Approach on recycling of printed circuit boards (PCB) via hydrometallurgical procedures: Principle and methodology" in 3rd International Convention of Scientists, Specialist Employees and Students on the Topic of Environmental Protection in the Republic of Croatia - 3rd ZORH CONVENTION (2022):8-8.

TY  - CONF
AU  - Petronijević, Nela
AU  - Jovanović, Gvozden
AU  - Sokić, Miroslav
AU  - Jovanović, Aleksandar
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Stanković, Srđan
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1026
AB  - The mining sector, nowadays, faces rising
challenges to find suitable practice that are
sustainable for already disposed waste streams
(AMD, flotation tailings and fly ash) [1]. There is a
growing tendency globally to use waste from
various industries to neutralize AMD, which has
both economic and environmental benefits. In
attempt to connect mining waste with concept of
sustainable development in the Republic of Serbia,
several experiments were taken into consideration:
neutralisation of AMD from Bor’s mine with a)
flotation tailings from copper mine Majdanpek
(FJM) b) fly ash (FA) from thermal power Nikola
Tesla (EF) and Kostolac (KOST). All three samples
of alternative product are voluminous, hazardous
waste products, difficult and expensive for safe
deposition, causes environmental pollution (by
spontaneous leaching of useful components, which
causes additional investment in the rehabilitation of
that or reversibly lost compounds that pollutes the
environment, or its dispersion by wind in
surrounding streams and groundwater resources of
drinking water, air or soil and also degradation by
soil erosion) and can affects human health’s if are
not regularly discharged. But its benefits are that
there are free of charge alkaline wastes, suitable to
neutralize the AMD by altering pH, which leads to
precipitation of valuable metal which can be reused,
such as Fe or Cu. The chemical and mineralogical
composition of the initial samples of FJM and FA
was evaluated two standard leaching tests: TCLP
and EN 12457-4, as well as Acid Neutralization
Capacity test. These base materials were shown to
have a large capacity to neutralize acid, making
them a highly effective alternative material for
neutralizing acid mine drainage and eliminating
metals, even better than results of neutralisation
with NaOH, as conventional reagent. According to
the findings the FJM and FA neutralization
experiments precipitated more than 99 % of Al, Fe,
and Cu, 90 % of Pb, and 92 % of Zn. Leaching of
these metals from FJM and FA raises Cd and Mn
concentrations. Additional treatment was
undertaken using hydrated lime to boost the pH to
10 and so offer circumstances for its removal, in
order to reduce the concentration of Mn below the
authorized limits by Serbian legislation. At the end,
as a result of utilizing alternative materials such as
FJM and two FA purified water, safe for release into
the environment was obtained. In this way,
resources are preserved for the future generation,
and the treatment of already disposed amounts of
waste reduces the contamination of the
environment, the emission of toxic metals and the
formation of acidic mine waters.
PB  - Ljubljana : University of Ljubljana Press
C3  - 22nd European Meeting on Environmental Chemistry EMEC22
T1  - Sustainable mining and acid mine water treatment
EP  - 62
SP  - 62
DO  - 10.55295/9789612970352
ER  - 

@conference{
author = "Petronijević, Nela and Jovanović, Gvozden and Sokić, Miroslav and Jovanović, Aleksandar and Radovanović, Dragana and Kamberović, Željko and Stanković, Srđan",
year = "2022",
abstract = "The mining sector, nowadays, faces rising
challenges to find suitable practice that are
sustainable for already disposed waste streams
(AMD, flotation tailings and fly ash) [1]. There is a
growing tendency globally to use waste from
various industries to neutralize AMD, which has
both economic and environmental benefits. In
attempt to connect mining waste with concept of
sustainable development in the Republic of Serbia,
several experiments were taken into consideration:
neutralisation of AMD from Bor’s mine with a)
flotation tailings from copper mine Majdanpek
(FJM) b) fly ash (FA) from thermal power Nikola
Tesla (EF) and Kostolac (KOST). All three samples
of alternative product are voluminous, hazardous
waste products, difficult and expensive for safe
deposition, causes environmental pollution (by
spontaneous leaching of useful components, which
causes additional investment in the rehabilitation of
that or reversibly lost compounds that pollutes the
environment, or its dispersion by wind in
surrounding streams and groundwater resources of
drinking water, air or soil and also degradation by
soil erosion) and can affects human health’s if are
not regularly discharged. But its benefits are that
there are free of charge alkaline wastes, suitable to
neutralize the AMD by altering pH, which leads to
precipitation of valuable metal which can be reused,
such as Fe or Cu. The chemical and mineralogical
composition of the initial samples of FJM and FA
was evaluated two standard leaching tests: TCLP
and EN 12457-4, as well as Acid Neutralization
Capacity test. These base materials were shown to
have a large capacity to neutralize acid, making
them a highly effective alternative material for
neutralizing acid mine drainage and eliminating
metals, even better than results of neutralisation
with NaOH, as conventional reagent. According to
the findings the FJM and FA neutralization
experiments precipitated more than 99 % of Al, Fe,
and Cu, 90 % of Pb, and 92 % of Zn. Leaching of
these metals from FJM and FA raises Cd and Mn
concentrations. Additional treatment was
undertaken using hydrated lime to boost the pH to
10 and so offer circumstances for its removal, in
order to reduce the concentration of Mn below the
authorized limits by Serbian legislation. At the end,
as a result of utilizing alternative materials such as
FJM and two FA purified water, safe for release into
the environment was obtained. In this way,
resources are preserved for the future generation,
and the treatment of already disposed amounts of
waste reduces the contamination of the
environment, the emission of toxic metals and the
formation of acidic mine waters.",
publisher = "Ljubljana : University of Ljubljana Press",
journal = "22nd European Meeting on Environmental Chemistry EMEC22",
title = "Sustainable mining and acid mine water treatment",
pages = "62-62",
doi = "10.55295/9789612970352"
}

Petronijević, N., Jovanović, G., Sokić, M., Jovanović, A., Radovanović, D., Kamberović, Ž.,& Stanković, S.. (2022). Sustainable mining and acid mine water treatment. in 22nd European Meeting on Environmental Chemistry EMEC22
Ljubljana : University of Ljubljana Press., 62-62.
https://doi.org/10.55295/9789612970352

Petronijević N, Jovanović G, Sokić M, Jovanović A, Radovanović D, Kamberović Ž, Stanković S. Sustainable mining and acid mine water treatment. in 22nd European Meeting on Environmental Chemistry EMEC22. 2022;:62-62.
doi:10.55295/9789612970352 .

Petronijević, Nela, Jovanović, Gvozden, Sokić, Miroslav, Jovanović, Aleksandar, Radovanović, Dragana, Kamberović, Željko, Stanković, Srđan, "Sustainable mining and acid mine water treatment" in 22nd European Meeting on Environmental Chemistry EMEC22 (2022):62-62,
https://doi.org/10.55295/9789612970352 . .

TY  - JOUR
AU  - Jovanović, Gvozden
AU  - Bugarčić, Mladen
AU  - Petronijević, Nela
AU  - Stopić, Srećko
AU  - Friedrich, Bernd
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Sokić, Miroslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/621
AB  - Electric waste from numerous devices that are put out of use every day has some form of printed circuit board that contains precious and valuable metals in their components. In order to extract these metals, the printed circuit boards were crushed and pyrolyzed into powder. The fine pyrolyzed printed circuit board (PPCB) powder was separated into fractions, and the fine metallic fraction was used as a raw material for metal leaching extraction. In order to better understand how various metal species react in leaching media, several leaching agents were used (sulfuric acid, nitric acid, glycine, and acid mine drainage-AMD) alone, and with the addition of hydrogen peroxide. Additionally, the influence of the S/L ratio and leaching temperature were investigated in sulfuric acid leaching solutions, as this is the one most widely used. In one case, the reactor was heated in a thermal bath, while in the other, it was heated in an ultrasonic bath. Lastly, several experiments were conducted with a (consecutive) two-pronged leaching approach, with and without applied pretreatment. The aim of this paper is to give a multifocal and detailed approach to how metals such as Al, Cu, Co, Zn, Sn, and Ca behave when extracted from fine PPCB powder. However, some attention is given to Nd, Pd, Pb, and Ba as well. One of the main findings is that regardless of the pretreatment or the sequence of leaching media applied, consecutive two-pronged leaching cannot be used for selective metal extraction. However, AMD was found to be suitable for selective leaching with very limited applications.
PB  - MDPI, Basel
T2  - Metals
T1  - A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching
IS  - 12
VL  - 12
DO  - 10.3390/met12122021
UR  - conv_961
ER  - 

@article{
author = "Jovanović, Gvozden and Bugarčić, Mladen and Petronijević, Nela and Stopić, Srećko and Friedrich, Bernd and Marković, Branislav and Stanković, Srđan and Sokić, Miroslav",
year = "2022",
abstract = "Electric waste from numerous devices that are put out of use every day has some form of printed circuit board that contains precious and valuable metals in their components. In order to extract these metals, the printed circuit boards were crushed and pyrolyzed into powder. The fine pyrolyzed printed circuit board (PPCB) powder was separated into fractions, and the fine metallic fraction was used as a raw material for metal leaching extraction. In order to better understand how various metal species react in leaching media, several leaching agents were used (sulfuric acid, nitric acid, glycine, and acid mine drainage-AMD) alone, and with the addition of hydrogen peroxide. Additionally, the influence of the S/L ratio and leaching temperature were investigated in sulfuric acid leaching solutions, as this is the one most widely used. In one case, the reactor was heated in a thermal bath, while in the other, it was heated in an ultrasonic bath. Lastly, several experiments were conducted with a (consecutive) two-pronged leaching approach, with and without applied pretreatment. The aim of this paper is to give a multifocal and detailed approach to how metals such as Al, Cu, Co, Zn, Sn, and Ca behave when extracted from fine PPCB powder. However, some attention is given to Nd, Pd, Pb, and Ba as well. One of the main findings is that regardless of the pretreatment or the sequence of leaching media applied, consecutive two-pronged leaching cannot be used for selective metal extraction. However, AMD was found to be suitable for selective leaching with very limited applications.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching",
number = "12",
volume = "12",
doi = "10.3390/met12122021",
url = "conv_961"
}

Jovanović, G., Bugarčić, M., Petronijević, N., Stopić, S., Friedrich, B., Marković, B., Stanković, S.,& Sokić, M.. (2022). A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching. in Metals
MDPI, Basel., 12(12).
https://doi.org/10.3390/met12122021
conv_961

Jovanović G, Bugarčić M, Petronijević N, Stopić S, Friedrich B, Marković B, Stanković S, Sokić M. A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching. in Metals. 2022;12(12).
doi:10.3390/met12122021
conv_961 .

Jovanović, Gvozden, Bugarčić, Mladen, Petronijević, Nela, Stopić, Srećko, Friedrich, Bernd, Marković, Branislav, Stanković, Srđan, Sokić, Miroslav, "A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching" in Metals, 12, no. 12 (2022),
https://doi.org/10.3390/met12122021 .,
conv_961 .

TY  - JOUR
AU  - Petronijević, Nela
AU  - Radovanović, Dragana
AU  - Stulović, Marija
AU  - Sokić, Miroslav
AU  - Jovanović, Gvozden
AU  - Kamberović, Željko
AU  - Stanković, Srđan
AU  - Stopić, Srećko
AU  - Onjia, Antonije
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/616
AB  - Acid mine drainage (AMD) is a waste from mining sites, usually acidic, with high concentrations of sulfates and heavy metal ions. This study investigates the AMD neutralization process using fly ash (FA) as an alternative material. Samples of FA from coal-fired power plants in Serbia ("Nikola Tesla" (EF) and "Kostolac" (KOST)) were analyzed and used. The results were compared with the treatment efficiency of commercial neutralization agent (NaOH). The alkaline nature of FA was the basis for use in the treatment process of the extremely acid Lake Robule (pH 2.46), located in the mining areas of eastern Serbia. The optimal S/L ratio for the AMD neutralization process determined for EF was 25 wt.%, and for KOST it was 20 wt.%. The mechanism of the neutralization process was analyzed using the ANC test and PHREEQC program. The element concentrations and pH values in solutions indicated that FA samples could neutralize Lake Robule with more than 99% of Al, Fe, Cu, Zn, and more than 89% of Pb precipitated. Formation of insoluble (oxy)hydroxide forms (Fe3+ and Al3+ ions) creates favorable conditions for co-precipitation of other trace metals (Cu, Zn, Ni, Pb, and Cd) from AMD, which is further enhanced by cation adsorption on FA particles. FA proved to be a more effective neutralization agent than NaOH due to its adsorption effect, while among the FA samples, KOST was more effective due to the aging process through the carbonization reaction. Using FA as an alternative material is a promising and sustainable method for treating AMD, with economic and environmental benefits.
PB  - MDPI, Basel
T2  - Water
T1  - Analysis of the Mechanism of Acid Mine Drainage Neutralization Using Fly Ash as an Alternative Material: A Case Study of the Extremely Acidic Lake Robule in Eastern Serbia
IS  - 20
VL  - 14
DO  - 10.3390/w14203244
UR  - conv_955
ER  - 

@article{
author = "Petronijević, Nela and Radovanović, Dragana and Stulović, Marija and Sokić, Miroslav and Jovanović, Gvozden and Kamberović, Željko and Stanković, Srđan and Stopić, Srećko and Onjia, Antonije",
year = "2022",
abstract = "Acid mine drainage (AMD) is a waste from mining sites, usually acidic, with high concentrations of sulfates and heavy metal ions. This study investigates the AMD neutralization process using fly ash (FA) as an alternative material. Samples of FA from coal-fired power plants in Serbia ("Nikola Tesla" (EF) and "Kostolac" (KOST)) were analyzed and used. The results were compared with the treatment efficiency of commercial neutralization agent (NaOH). The alkaline nature of FA was the basis for use in the treatment process of the extremely acid Lake Robule (pH 2.46), located in the mining areas of eastern Serbia. The optimal S/L ratio for the AMD neutralization process determined for EF was 25 wt.%, and for KOST it was 20 wt.%. The mechanism of the neutralization process was analyzed using the ANC test and PHREEQC program. The element concentrations and pH values in solutions indicated that FA samples could neutralize Lake Robule with more than 99% of Al, Fe, Cu, Zn, and more than 89% of Pb precipitated. Formation of insoluble (oxy)hydroxide forms (Fe3+ and Al3+ ions) creates favorable conditions for co-precipitation of other trace metals (Cu, Zn, Ni, Pb, and Cd) from AMD, which is further enhanced by cation adsorption on FA particles. FA proved to be a more effective neutralization agent than NaOH due to its adsorption effect, while among the FA samples, KOST was more effective due to the aging process through the carbonization reaction. Using FA as an alternative material is a promising and sustainable method for treating AMD, with economic and environmental benefits.",
publisher = "MDPI, Basel",
journal = "Water",
title = "Analysis of the Mechanism of Acid Mine Drainage Neutralization Using Fly Ash as an Alternative Material: A Case Study of the Extremely Acidic Lake Robule in Eastern Serbia",
number = "20",
volume = "14",
doi = "10.3390/w14203244",
url = "conv_955"
}

Petronijević, N., Radovanović, D., Stulović, M., Sokić, M., Jovanović, G., Kamberović, Ž., Stanković, S., Stopić, S.,& Onjia, A.. (2022). Analysis of the Mechanism of Acid Mine Drainage Neutralization Using Fly Ash as an Alternative Material: A Case Study of the Extremely Acidic Lake Robule in Eastern Serbia. in Water
MDPI, Basel., 14(20).
https://doi.org/10.3390/w14203244
conv_955

Petronijević N, Radovanović D, Stulović M, Sokić M, Jovanović G, Kamberović Ž, Stanković S, Stopić S, Onjia A. Analysis of the Mechanism of Acid Mine Drainage Neutralization Using Fly Ash as an Alternative Material: A Case Study of the Extremely Acidic Lake Robule in Eastern Serbia. in Water. 2022;14(20).
doi:10.3390/w14203244
conv_955 .

Petronijević, Nela, Radovanović, Dragana, Stulović, Marija, Sokić, Miroslav, Jovanović, Gvozden, Kamberović, Željko, Stanković, Srđan, Stopić, Srećko, Onjia, Antonije, "Analysis of the Mechanism of Acid Mine Drainage Neutralization Using Fly Ash as an Alternative Material: A Case Study of the Extremely Acidic Lake Robule in Eastern Serbia" in Water, 14, no. 20 (2022),
https://doi.org/10.3390/w14203244 .,
conv_955 .

TY  - CONF
AU  - Petronijević, Nela
AU  - Alivojvodić, Vesna
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Radovanović, Dragana
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/957
AB  - Today human society is already witnessing rapid depletion of non-renewable ore resources. As the distribution of raw material resources globally is very off-balance, and preassure on environment as the consequence of ore exploatation is not negligible, reutilization and recycling of industrial side-streams gaining on importance. Finding new potentially anthropogenic resources of material (at first place critical raw materials) are inline with sustainable waste management goals, and in correlation with boundaries given by the circular economy principles. Side-streams from mines can become source for recovery of these materials. The aim of this paper was to analyze position of mining waste in correlation with circular economy principles, as well potential for implementation of them within extraction industry in the Republic of Serbia.
PB  - Beograd : Institut za istraživanja i projektovanja u privredi
C3  - YOUng ResearcherS Conference 2020
T1  - Sustainable mining towards accoplisihng circular economy principles
EP  - 24
SP  - 24
ER  - 

@conference{
author = "Petronijević, Nela and Alivojvodić, Vesna and Sokić, Miroslav and Marković, Branislav and Stanković, Srđan and Radovanović, Dragana",
year = "2020",
abstract = "Today human society is already witnessing rapid depletion of non-renewable ore resources. As the distribution of raw material resources globally is very off-balance, and preassure on environment as the consequence of ore exploatation is not negligible, reutilization and recycling of industrial side-streams gaining on importance. Finding new potentially anthropogenic resources of material (at first place critical raw materials) are inline with sustainable waste management goals, and in correlation with boundaries given by the circular economy principles. Side-streams from mines can become source for recovery of these materials. The aim of this paper was to analyze position of mining waste in correlation with circular economy principles, as well potential for implementation of them within extraction industry in the Republic of Serbia.",
publisher = "Beograd : Institut za istraživanja i projektovanja u privredi",
journal = "YOUng ResearcherS Conference 2020",
title = "Sustainable mining towards accoplisihng circular economy principles",
pages = "24-24"
}

Petronijević, N., Alivojvodić, V., Sokić, M., Marković, B., Stanković, S.,& Radovanović, D.. (2020). Sustainable mining towards accoplisihng circular economy principles. in YOUng ResearcherS Conference 2020
Beograd : Institut za istraživanja i projektovanja u privredi., 24-24.

Petronijević N, Alivojvodić V, Sokić M, Marković B, Stanković S, Radovanović D. Sustainable mining towards accoplisihng circular economy principles. in YOUng ResearcherS Conference 2020. 2020;:24-24..

Petronijević, Nela, Alivojvodić, Vesna, Sokić, Miroslav, Marković, Branislav, Stanković, Srđan, Radovanović, Dragana, "Sustainable mining towards accoplisihng circular economy principles" in YOUng ResearcherS Conference 2020 (2020):24-24.

TY  - JOUR
AU  - Petronijević, Nela
AU  - Stanković, Srđan
AU  - Radovanović, Dragana
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stopić, Srećko
AU  - Kamberović, Željko
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/546
AB  - Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake Robule (Bor, Serbia). Tests conducted in Erlenmeyer flasks showed that after neutralization of the lake water to pH 7, over 99% of aluminum (Al), iron (Fe), and copper (Cu) precipitated, as well as 92% of Zn and 98% of Pb. In order to remove residual Mn and Ag, the water was further treated with NaOH. After treatment with NaOH, all concentrations of the metals in the lake water samples were below discharge limits for municipal wastewater according to the national legislation of the Republic of Serbia. The results of this work suggest that mining waste could be used for active neutralization of the acid mine drainage. The use of the mining waste instead of lime could reduce the costs of the active treatment of the acid mine drainage.
PB  - MDPI, Basel
T2  - Metals
T1  - Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)
IS  - 1
VL  - 10
DO  - 10.3390/met10010016
UR  - conv_875
ER  - 

@article{
author = "Petronijević, Nela and Stanković, Srđan and Radovanović, Dragana and Sokić, Miroslav and Marković, Branislav and Stopić, Srećko and Kamberović, Željko",
year = "2020",
abstract = "Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake Robule (Bor, Serbia). Tests conducted in Erlenmeyer flasks showed that after neutralization of the lake water to pH 7, over 99% of aluminum (Al), iron (Fe), and copper (Cu) precipitated, as well as 92% of Zn and 98% of Pb. In order to remove residual Mn and Ag, the water was further treated with NaOH. After treatment with NaOH, all concentrations of the metals in the lake water samples were below discharge limits for municipal wastewater according to the national legislation of the Republic of Serbia. The results of this work suggest that mining waste could be used for active neutralization of the acid mine drainage. The use of the mining waste instead of lime could reduce the costs of the active treatment of the acid mine drainage.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)",
number = "1",
volume = "10",
doi = "10.3390/met10010016",
url = "conv_875"
}

Petronijević, N., Stanković, S., Radovanović, D., Sokić, M., Marković, B., Stopić, S.,& Kamberović, Ž.. (2020). Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). in Metals
MDPI, Basel., 10(1).
https://doi.org/10.3390/met10010016
conv_875

Petronijević N, Stanković S, Radovanović D, Sokić M, Marković B, Stopić S, Kamberović Ž. Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). in Metals. 2020;10(1).
doi:10.3390/met10010016
conv_875 .

Petronijević, Nela, Stanković, Srđan, Radovanović, Dragana, Sokić, Miroslav, Marković, Branislav, Stopić, Srećko, Kamberović, Željko, "Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)" in Metals, 10, no. 1 (2020),
https://doi.org/10.3390/met10010016 .,
conv_875 .

TY  - JOUR
AU  - Petronijević, Nela
AU  - Alivojvodić, Vesna
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Radovanović, Dragana
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/531
AB  - Today human society is already witnessing rapid depletion of non-renewable ore resources. As the distribution of raw material resources globally is very off-balance, and preassure on environment as the consequence of ore exploatation is not negligible, re-utilization and recycling of industrial side-streams gaining on importance. Finding new potentially anthropogenic resources of material (at first place critical raw materials) are inline with sustainable waste management goals, and in correlation with boundaries given by the circular economy principles. Side-streams from mines can become source for recovery of these materials. The aim of this paper was to analyze position of mining waste in correlation with circular economy principles, as well potential for implementation of them within extraction industry in the Republic of Serbia.
PB  - Institut za istraživanja i projektovanja u privredi, Beograd
T2  - Journal of Applied Engineering Science
T1  - Sustainable mining towards accomplishing circular economy principles
EP  - 499
IS  - 4
SP  - 493
VL  - 18
DO  - 10.5937/jaes0-27460
UR  - conv_380
ER  - 

@article{
author = "Petronijević, Nela and Alivojvodić, Vesna and Sokić, Miroslav and Marković, Branislav and Stanković, Srđan and Radovanović, Dragana",
year = "2020",
abstract = "Today human society is already witnessing rapid depletion of non-renewable ore resources. As the distribution of raw material resources globally is very off-balance, and preassure on environment as the consequence of ore exploatation is not negligible, re-utilization and recycling of industrial side-streams gaining on importance. Finding new potentially anthropogenic resources of material (at first place critical raw materials) are inline with sustainable waste management goals, and in correlation with boundaries given by the circular economy principles. Side-streams from mines can become source for recovery of these materials. The aim of this paper was to analyze position of mining waste in correlation with circular economy principles, as well potential for implementation of them within extraction industry in the Republic of Serbia.",
publisher = "Institut za istraživanja i projektovanja u privredi, Beograd",
journal = "Journal of Applied Engineering Science",
title = "Sustainable mining towards accomplishing circular economy principles",
pages = "499-493",
number = "4",
volume = "18",
doi = "10.5937/jaes0-27460",
url = "conv_380"
}

Petronijević, N., Alivojvodić, V., Sokić, M., Marković, B., Stanković, S.,& Radovanović, D.. (2020). Sustainable mining towards accomplishing circular economy principles. in Journal of Applied Engineering Science
Institut za istraživanja i projektovanja u privredi, Beograd., 18(4), 493-499.
https://doi.org/10.5937/jaes0-27460
conv_380

Petronijević N, Alivojvodić V, Sokić M, Marković B, Stanković S, Radovanović D. Sustainable mining towards accomplishing circular economy principles. in Journal of Applied Engineering Science. 2020;18(4):493-499.
doi:10.5937/jaes0-27460
conv_380 .

Petronijević, Nela, Alivojvodić, Vesna, Sokić, Miroslav, Marković, Branislav, Stanković, Srđan, Radovanović, Dragana, "Sustainable mining towards accomplishing circular economy principles" in Journal of Applied Engineering Science, 18, no. 4 (2020):493-499,
https://doi.org/10.5937/jaes0-27460 .,
conv_380 .

TY  - CONF
AU  - Stanković, Srđan
AU  - Ranđelović, Dragana
AU  - Petronijević, Nela
AU  - Marković, Branislav
AU  - Sokić, Miroslav
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1050
AB  - Lake Robule is an extremely acidic water body located in the proximity of the town of
Bor (eastern Serbia) polluted with high concentrations of dissolved metal cations.
Polluted water drains from the lake into the Bor river. Acid mine drainage originates on
the slopes of the mine overburden deposit named Visoki planir located on the banks of
the Lake. Long term exposure of the pyrite in the overburden to oxygen and water led to
generation of the acid mine drainage. These acidic streams leach and mobilize metal
cations, which end up in the lake Robule, making this water body extremely acidic and
contaminated with metal cations. This situation could be avoided by proper deposition
and reclamation of the mining waste. Inadequate deposition of the overburden of the
Copper mine Bor and its impact on environment were analyzed in this paper.
Reclamation of the mining waste usually consists of technical and biological phases,
where terracing, stabilization, melioration and binding of mine waste occur. The quality
of technical reclamation can often have a decisive impact on the quality of biological
reclamation, surrounding environment and acid mine drainage generation process. In
the copper mine basin in Bor, technical reclamation was carried out only partially and
by forming high waste piles with narrow slopes. That has significantly limited the
chances for successful biological reclamation of the terrain, and the consequences of
this procedure were strongly eroded waste pile slopes without drainage channels, with
almost complete absence of spontaneous vegetation, leaving sulfide minerals in the pile
permanently exposed to water and oxygen.
PB  - Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)
C3  - "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019"
T1  - Improper Deposition of the Mining Waste as a Source of the Environmental Pollution: Case Study of the Lake Robule (Bor, Eastern Serbia)
EP  - 480
SP  - 474
ER  - 

@conference{
author = "Stanković, Srđan and Ranđelović, Dragana and Petronijević, Nela and Marković, Branislav and Sokić, Miroslav",
year = "2019",
abstract = "Lake Robule is an extremely acidic water body located in the proximity of the town of
Bor (eastern Serbia) polluted with high concentrations of dissolved metal cations.
Polluted water drains from the lake into the Bor river. Acid mine drainage originates on
the slopes of the mine overburden deposit named Visoki planir located on the banks of
the Lake. Long term exposure of the pyrite in the overburden to oxygen and water led to
generation of the acid mine drainage. These acidic streams leach and mobilize metal
cations, which end up in the lake Robule, making this water body extremely acidic and
contaminated with metal cations. This situation could be avoided by proper deposition
and reclamation of the mining waste. Inadequate deposition of the overburden of the
Copper mine Bor and its impact on environment were analyzed in this paper.
Reclamation of the mining waste usually consists of technical and biological phases,
where terracing, stabilization, melioration and binding of mine waste occur. The quality
of technical reclamation can often have a decisive impact on the quality of biological
reclamation, surrounding environment and acid mine drainage generation process. In
the copper mine basin in Bor, technical reclamation was carried out only partially and
by forming high waste piles with narrow slopes. That has significantly limited the
chances for successful biological reclamation of the terrain, and the consequences of
this procedure were strongly eroded waste pile slopes without drainage channels, with
almost complete absence of spontaneous vegetation, leaving sulfide minerals in the pile
permanently exposed to water and oxygen.",
publisher = "Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)",
journal = ""International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019"",
title = "Improper Deposition of the Mining Waste as a Source of the Environmental Pollution: Case Study of the Lake Robule (Bor, Eastern Serbia)",
pages = "480-474"
}

Stanković, S., Ranđelović, D., Petronijević, N., Marković, B.,& Sokić, M.. (2019). Improper Deposition of the Mining Waste as a Source of the Environmental Pollution: Case Study of the Lake Robule (Bor, Eastern Serbia). in "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019"
Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)., 474-480.

Stanković S, Ranđelović D, Petronijević N, Marković B, Sokić M. Improper Deposition of the Mining Waste as a Source of the Environmental Pollution: Case Study of the Lake Robule (Bor, Eastern Serbia). in "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019". 2019;:474-480..

Stanković, Srđan, Ranđelović, Dragana, Petronijević, Nela, Marković, Branislav, Sokić, Miroslav, "Improper Deposition of the Mining Waste as a Source of the Environmental Pollution: Case Study of the Lake Robule (Bor, Eastern Serbia)" in "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019" (2019):474-480.

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Kamberović, Željko
AU  - Štrbac, Nada
AU  - Manojlović, Vaso
AU  - Petronijević, Nela
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/504
AB  - In ores, chalcopyrite is usually associated with other sulfide minerals, such as sphalerite, galena, and pyrite, in a dispersed form, with complex mineralogical structures. Concentrates obtained by flotation of such ores are unsuitable for pyrometallurgical processing owing to their poor quality and low metal recovery. This paper presents the leaching of chalcopyrite concentrate from the location "Rudnik, Serbia". The samples from the flotation plant were treated with hydrogen peroxide in sulfuric acid. The influences of temperature, particle size, stirring speed, as well as the concentrations of hydrogen peroxide and sulfuric acid were followed and discussed. Hence, the main objective was to optimize the relevant conditions and to determine the reaction kinetics. It was remarked that the increase in temperature, hydrogen peroxide content, and sulfuric acid concentration, as well as the decrease in particle size and stirring speed, contribute to the dissolution of chalcopyrite. The dissolution kinetics follow a model controlled by diffusion, and the lixiviant diffusion controls the rate of reaction through the sulfur layer. Finally, the main characterization methods used to corroborate the obtained results were X-ray diffraction (XRD) as well as qualitative and quantitative light microscopy of the chalcopyrite concentrate samples and the leach residue.
PB  - MDPI, Basel
T2  - Metals
T1  - Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid
IS  - 11
VL  - 9
DO  - 10.3390/met9111173
UR  - conv_871
ER  - 

@article{
author = "Sokić, Miroslav and Marković, Branislav and Stanković, Srđan and Kamberović, Željko and Štrbac, Nada and Manojlović, Vaso and Petronijević, Nela",
year = "2019",
abstract = "In ores, chalcopyrite is usually associated with other sulfide minerals, such as sphalerite, galena, and pyrite, in a dispersed form, with complex mineralogical structures. Concentrates obtained by flotation of such ores are unsuitable for pyrometallurgical processing owing to their poor quality and low metal recovery. This paper presents the leaching of chalcopyrite concentrate from the location "Rudnik, Serbia". The samples from the flotation plant were treated with hydrogen peroxide in sulfuric acid. The influences of temperature, particle size, stirring speed, as well as the concentrations of hydrogen peroxide and sulfuric acid were followed and discussed. Hence, the main objective was to optimize the relevant conditions and to determine the reaction kinetics. It was remarked that the increase in temperature, hydrogen peroxide content, and sulfuric acid concentration, as well as the decrease in particle size and stirring speed, contribute to the dissolution of chalcopyrite. The dissolution kinetics follow a model controlled by diffusion, and the lixiviant diffusion controls the rate of reaction through the sulfur layer. Finally, the main characterization methods used to corroborate the obtained results were X-ray diffraction (XRD) as well as qualitative and quantitative light microscopy of the chalcopyrite concentrate samples and the leach residue.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid",
number = "11",
volume = "9",
doi = "10.3390/met9111173",
url = "conv_871"
}

Sokić, M., Marković, B., Stanković, S., Kamberović, Ž., Štrbac, N., Manojlović, V.,& Petronijević, N.. (2019). Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. in Metals
MDPI, Basel., 9(11).
https://doi.org/10.3390/met9111173
conv_871

Sokić M, Marković B, Stanković S, Kamberović Ž, Štrbac N, Manojlović V, Petronijević N. Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. in Metals. 2019;9(11).
doi:10.3390/met9111173
conv_871 .

Sokić, Miroslav, Marković, Branislav, Stanković, Srđan, Kamberović, Željko, Štrbac, Nada, Manojlović, Vaso, Petronijević, Nela, "Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid" in Metals, 9, no. 11 (2019),
https://doi.org/10.3390/met9111173 .,
conv_871 .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Radovanović, Dragana
AU  - Marković, Branislav
AU  - Stojanović, Jovica
AU  - Kamberović, Željko
AU  - Petronijević, Nela
AU  - Stanković, Srđan
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/508
AB  - Since commissioning in 1961, the copper mine Majdanpek, a part of the Mining and Smelting Complex Bor (RTB Bor), produced approximately 378 million tons of flotation tailings. Semiquantitative mineralogical analysis of the flotation tailings revealed significant content of carbonate minerals (approximately 20-25 %), indicating high acid neutralization capacity. Also, approximately 70 % of copper is in the form of the oxide mineral cuprite (Cu2O). Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m(3)h(-1) of extremely acidic waste effluent (142.4 kgm(-3) of sulphuric acid, pH - 0.464) with relatively high concentrations of dissolved metals and metalloids (Cu, Fe, Zn, Pb and As). The effluent is currently treated with hydrated lime. The present study focused on application of flotation tailings as a neutralizing agent for acidic effluents. Laboratory experiments followed by computer simulation of the industrial process showed that 99% of the acid can be neutralized with flotation tailings in a series of six reactors resulting in the final copper concentration of 1.55 gL(-1). Benefits of the proposed process are: lower environmental impact of the process and reduced costs of neutralization of the acidic effluent from the copper smelter.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Treatment of the acidic effluent from a copper smelter by flotation tailings
EP  - 124
IS  - 2
SP  - 115
VL  - 73
DO  - 10.2298/HEMIND181009010S
UR  - conv_850
ER  - 

@article{
author = "Sokić, Miroslav and Radovanović, Dragana and Marković, Branislav and Stojanović, Jovica and Kamberović, Željko and Petronijević, Nela and Stanković, Srđan",
year = "2019",
abstract = "Since commissioning in 1961, the copper mine Majdanpek, a part of the Mining and Smelting Complex Bor (RTB Bor), produced approximately 378 million tons of flotation tailings. Semiquantitative mineralogical analysis of the flotation tailings revealed significant content of carbonate minerals (approximately 20-25 %), indicating high acid neutralization capacity. Also, approximately 70 % of copper is in the form of the oxide mineral cuprite (Cu2O). Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m(3)h(-1) of extremely acidic waste effluent (142.4 kgm(-3) of sulphuric acid, pH - 0.464) with relatively high concentrations of dissolved metals and metalloids (Cu, Fe, Zn, Pb and As). The effluent is currently treated with hydrated lime. The present study focused on application of flotation tailings as a neutralizing agent for acidic effluents. Laboratory experiments followed by computer simulation of the industrial process showed that 99% of the acid can be neutralized with flotation tailings in a series of six reactors resulting in the final copper concentration of 1.55 gL(-1). Benefits of the proposed process are: lower environmental impact of the process and reduced costs of neutralization of the acidic effluent from the copper smelter.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Treatment of the acidic effluent from a copper smelter by flotation tailings",
pages = "124-115",
number = "2",
volume = "73",
doi = "10.2298/HEMIND181009010S",
url = "conv_850"
}

Sokić, M., Radovanović, D., Marković, B., Stojanović, J., Kamberović, Ž., Petronijević, N.,& Stanković, S.. (2019). Treatment of the acidic effluent from a copper smelter by flotation tailings. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(2), 115-124.
https://doi.org/10.2298/HEMIND181009010S
conv_850

Sokić M, Radovanović D, Marković B, Stojanović J, Kamberović Ž, Petronijević N, Stanković S. Treatment of the acidic effluent from a copper smelter by flotation tailings. in Hemijska industrija. 2019;73(2):115-124.
doi:10.2298/HEMIND181009010S
conv_850 .

Sokić, Miroslav, Radovanović, Dragana, Marković, Branislav, Stojanović, Jovica, Kamberović, Željko, Petronijević, Nela, Stanković, Srđan, "Treatment of the acidic effluent from a copper smelter by flotation tailings" in Hemijska industrija, 73, no. 2 (2019):115-124,
https://doi.org/10.2298/HEMIND181009010S .,
conv_850 .

TY  - JOUR
AU  - Bugarčić, Mladen
AU  - Milivojević, Milan
AU  - Marinković, Aleksandar D.
AU  - Marković, Branislav
AU  - Sokić, Miroslav
AU  - Petronijević, Nela
AU  - Stojanović, Jovica
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/477
AB  - This paper aims to determine the potential of volcanic rock found in Etna valley as an adsorbent of heavy metals in anionic form (chromates, arsenates, and selenates). Characterization of the volcanic rock was done with chemical methods (AAS, AES, gravimetric analysis, XRF), physicochemical methods (XRD, FTIR, SEM, DTA, DTG) and physical methods (porosity measurement, Microscopy in transmitted light). Also, equilibrium adsorption capacity was determined. All the results of adsorption capacity were satisfying considering the mineral composition, granulation, and porosity. The removal efficiency of chromates was the biggest (above 30 %) with adsorption capacity of 15.6 mg Cr g(-1). The lowest adsorption efficiency was with the selenates, approximately 18 %.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Application of raw volcanic rock found in etna valley as an adsorbent of chromates, arsenates and selenates
EP  - 144
IS  - 2
SP  - 133
VL  - 24
DO  - 10.30544/366
UR  - conv_826
ER  - 

@article{
author = "Bugarčić, Mladen and Milivojević, Milan and Marinković, Aleksandar D. and Marković, Branislav and Sokić, Miroslav and Petronijević, Nela and Stojanović, Jovica",
year = "2018",
abstract = "This paper aims to determine the potential of volcanic rock found in Etna valley as an adsorbent of heavy metals in anionic form (chromates, arsenates, and selenates). Characterization of the volcanic rock was done with chemical methods (AAS, AES, gravimetric analysis, XRF), physicochemical methods (XRD, FTIR, SEM, DTA, DTG) and physical methods (porosity measurement, Microscopy in transmitted light). Also, equilibrium adsorption capacity was determined. All the results of adsorption capacity were satisfying considering the mineral composition, granulation, and porosity. The removal efficiency of chromates was the biggest (above 30 %) with adsorption capacity of 15.6 mg Cr g(-1). The lowest adsorption efficiency was with the selenates, approximately 18 %.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Application of raw volcanic rock found in etna valley as an adsorbent of chromates, arsenates and selenates",
pages = "144-133",
number = "2",
volume = "24",
doi = "10.30544/366",
url = "conv_826"
}

Bugarčić, M., Milivojević, M., Marinković, A. D., Marković, B., Sokić, M., Petronijević, N.,& Stojanović, J.. (2018). Application of raw volcanic rock found in etna valley as an adsorbent of chromates, arsenates and selenates. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 24(2), 133-144.
https://doi.org/10.30544/366
conv_826

Bugarčić M, Milivojević M, Marinković AD, Marković B, Sokić M, Petronijević N, Stojanović J. Application of raw volcanic rock found in etna valley as an adsorbent of chromates, arsenates and selenates. in Metallurgical & Materials Engineering. 2018;24(2):133-144.
doi:10.30544/366
conv_826 .

Bugarčić, Mladen, Milivojević, Milan, Marinković, Aleksandar D., Marković, Branislav, Sokić, Miroslav, Petronijević, Nela, Stojanović, Jovica, "Application of raw volcanic rock found in etna valley as an adsorbent of chromates, arsenates and selenates" in Metallurgical & Materials Engineering, 24, no. 2 (2018):133-144,
https://doi.org/10.30544/366 .,
conv_826 .