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Selection of a community of acidochemolithotrophic microorganisms with a high oxidation rate of pyrrhotite-containing sulphide ore flotation concentrate

Selection of a community of acidochemolithotrophic microorganisms with a high oxidation rate of... 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%). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Biochemistry and Microbiology Springer Journals

Selection of a community of acidochemolithotrophic microorganisms with a high oxidation rate of pyrrhotite-containing sulphide ore flotation concentrate

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References (5)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Biochemistry, general; Microbiology; Medical Microbiology
ISSN
0003-6838
eISSN
1608-3024
DOI
10.1134/S0003683813050050
Publisher site
See Article on Publisher Site

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%).

Journal

Applied Biochemistry and MicrobiologySpringer Journals

Published: Sep 3, 2013

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