Abstract
A community of acidochemolithotrophic microorganisms with a high oxidation rate of pyrrhotite-containing sulphide ore flotation concentrate was selected. The Acidithiobacillus caldus OP-1 and Ferroplasma acidiphilum OP-2 cultures were identified to be dominating members. The presence of the Acidithiobacillus ferrooxidans OP-3, Leptospirillum ferriphilum OP-4, and Sulfobacillus thermosulfidooxidans OP-5 cultures in the community’s composition was also mentioned. The analysis results of solid residues of the process showed a greater elemental sulfur oxidation level and gold recovery when the initial pH value in tank I was maintained at a level of 1.8–2.0 (90.5%) rather than 1.6–1.8 (86.3%).
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Original Russian Text © T.F. Kondrat’eva, T.A. Pivovarova, A.G. Bulaev, P.V. Moshchanetskii, I.A. Tsaplina, N.V. Grigor’eva, A.E. Zhuravleva, V.S. Melamud, A.V. Belyi, 2013, published in Prikladnaya Biokhimiya i Mikrobiologiya, 2013, Vol. 49, No. 5, pp. 491–498.
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Kondrat’eva, T.F., Pivovarova, T.A., Bulaev, A.G. et al. Selection of a community of acidochemolithotrophic microorganisms with a high oxidation rate of pyrrhotite-containing sulphide ore flotation concentrate. Appl Biochem Microbiol 49, 495–501 (2013). https://doi.org/10.1134/S0003683813050050
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DOI: https://doi.org/10.1134/S0003683813050050