TY  - CONF
AU  - Stojković, Milica
AU  - Dedić, Sofija
AU  - Đolić, Maja
AU  - Ćujić, Mirjana
AU  - Pavićević, Vladimir
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11230
AB  - Fly ash originating from coal combustion in thermal power plants is generated in landfills in large amounts, and due to the high content of heavy metals and metalloids whose mobility is hazardous to the environment and human health, it causes soil and groundwater pollution. Scientific research in the field of "alternative mining" is significant, where heavy metals and rare earth elements would be recovered from waste materials such as fly ash using various extraction methods. The aim of this paper is to determine the optimal extraction process of the examined elements: V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb from fly ash. Two extraction agents were used: sulfuric and acetic acid. In the first set of experiments, the fly ash was immersed immediately in acids, and in the second set, this process was preceded by the addition of sodium hydroxide, which effectively destroys the alumina-silicate matrix. Several different parameters were also monitored: ratio of fly ash and acid/acid mixture (1:5, 1:30), temperature (25 and 45°C), duration of the process (4 and 24 h), and stirring. For the extraction of Pb - H2SO4, temperature and time were shown as significant parameters, while for Cd, only H2SO4 was an effective extractant. Concerning the As metalloid, the acetic acid, solid/liquid ratio, and time were significant, while for Zn, Cu, Co, Mn, and V metals only the solid/liquid ratio was significant. Determination of the content of heavy metals and metalloids was done by the ICP-MS.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia (AMES)
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe : Proceedings
T1  - The Optimization of Metals and Metalloids Extraction From Fly Ash
SP  - 347
EP  - 352
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11230
ER  - 

@conference{
author = "Stojković, Milica and Dedić, Sofija and Đolić, Maja and Ćujić, Mirjana and Pavićević, Vladimir and Ristić, Mirjana and Perić-Grujić, Aleksandra",
year = "2023",
abstract = "Fly ash originating from coal combustion in thermal power plants is generated in landfills in large amounts, and due to the high content of heavy metals and metalloids whose mobility is hazardous to the environment and human health, it causes soil and groundwater pollution. Scientific research in the field of "alternative mining" is significant, where heavy metals and rare earth elements would be recovered from waste materials such as fly ash using various extraction methods. The aim of this paper is to determine the optimal extraction process of the examined elements: V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb from fly ash. Two extraction agents were used: sulfuric and acetic acid. In the first set of experiments, the fly ash was immersed immediately in acids, and in the second set, this process was preceded by the addition of sodium hydroxide, which effectively destroys the alumina-silicate matrix. Several different parameters were also monitored: ratio of fly ash and acid/acid mixture (1:5, 1:30), temperature (25 and 45°C), duration of the process (4 and 24 h), and stirring. For the extraction of Pb - H2SO4, temperature and time were shown as significant parameters, while for Cd, only H2SO4 was an effective extractant. Concerning the As metalloid, the acetic acid, solid/liquid ratio, and time were significant, while for Zn, Cu, Co, Mn, and V metals only the solid/liquid ratio was significant. Determination of the content of heavy metals and metalloids was done by the ICP-MS.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia (AMES)",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe : Proceedings",
title = "The Optimization of Metals and Metalloids Extraction From Fly Ash",
pages = "347-352",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11230"
}

Stojković, M., Dedić, S., Đolić, M., Ćujić, M., Pavićević, V., Ristić, M.,& Perić-Grujić, A.. (2023). The Optimization of Metals and Metalloids Extraction From Fly Ash. in 5th Metallurgical & Materials Engineering Congress of South-East Europe : Proceedings
Belgrade : Association of Metallurgical Engineers of Serbia (AMES)., 347-352.
https://hdl.handle.net/21.15107/rcub_vinar_11230

Stojković M, Dedić S, Đolić M, Ćujić M, Pavićević V, Ristić M, Perić-Grujić A. The Optimization of Metals and Metalloids Extraction From Fly Ash. in 5th Metallurgical & Materials Engineering Congress of South-East Europe : Proceedings. 2023;:347-352.
https://hdl.handle.net/21.15107/rcub_vinar_11230 .

Stojković, Milica, Dedić, Sofija, Đolić, Maja, Ćujić, Mirjana, Pavićević, Vladimir, Ristić, Mirjana, Perić-Grujić, Aleksandra, "The Optimization of Metals and Metalloids Extraction From Fly Ash" in 5th Metallurgical & Materials Engineering Congress of South-East Europe : Proceedings (2023):347-352,
https://hdl.handle.net/21.15107/rcub_vinar_11230 .