Copper Extraction from Complex Waste Dumps by Biochemical Leaching Method
Koizhanova A. Magomedov D. Abdyldayev N. Kamalov E. Yerdenova M. Bakrayeva A.
2022Polskie Towarzystwo Inzynierii Ekologicznej (PTIE)
Journal of Ecological Engineering
2022#23Issue 10283 - 290 pp.
The article presents the research results for the effectiveness of copper extraction from ores of the Satpayev deposit with complex, mixed composition bacterial leaching. The experiments with pre-acidification of copper samples were performed using biological oxidation by A. Ferrooxidans bacterial culture, adapted strain. Biochemical opening moes of mineral raw materials using A. Ferrooxidans bacteria of a particular strain adapted to the copper waste composition and capable of oxidizing sulfide and iron-bearing minerals were worked out. The optimal growth conditions for microorganisms in copper mineral pulp medium were established (temperature, pH, S: L.) The highest leaching efficiency, up to 88.65%, was observed in the experiments with preliminary bio-oxidation of samples by A. Ferrooxidans bacterial culture.
Acidobacillus ferrooxidans bacteria , Bio-oxidation , Copper dumps , Leaching
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Institute of Metallurgy and Ore Beneficiation, JSC, Satbyaev University, 29/133,Shevchenko str., Almaty, 050010, Kazakhstan
Institute of Metallurgy and Ore Beneficiation
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