Use of neutralizing agens in the removal of heavy metals from acid mine drainage

Zendelska, Afrodita and Trajanova, Adrijana and Golomeova, Mirjana and Golomeov, Blagoj and Mirakovski, Dejan and Doneva, Nikolinka and Hadzi-Nikolova, Marija (2022) Use of neutralizing agens in the removal of heavy metals from acid mine drainage. In: XIII Expert conference themed: Technology of underground and surface mining of mineral raw materials "Podex – Poveks" ’22, 14-16 October 2022, Ohrid.

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Abstract

Several neutralizing agents, including BaCO3, Na2CO3, NaOH, KOH, K2CO3, MgO, CaCO3 and Ba(OH)2, are explored in this study in order to remove heavy metals from acid mine drainage. The experiments are performed in laboratory conditions using multi-component synthetic aqueous solution
with same initial concentration (10 mg/l) of each ion, such as Cu, Mn, Zn, Fe and Pb and initial pH value of 1.9. Comparison of studied neutralizing agents for heavy metals removal from aqueous solutions shown that the most effective neutralizing agent is MgO, while the lowest efficiency is obtained with Na2CO3. The percentage of heavy metals removed from aqueous solutions increases along with rising pH values. The highest removal is obtained at pH 12 for all studied heavy metals and almost 80-82% removed of Pb, Fe and Cu, while almost 74% of Zn and Mn.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Engineering and Technology > Environmental engineering Engineering and Technology > Materials engineering
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Afrodita Zendelska
Date Deposited:	24 Oct 2022 19:20
Last Modified:	24 Oct 2022 19:20
URI:	https://eprints.ugd.edu.mk/id/eprint/30311

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