Mìkrobìologìâ ì Bìotehnologìâ (Jun 2011)
EXTRACTION OF GERMANIUM FROM LEAD-ZINC PRODUCTION WASTE BY THIOBACTERIA
Abstract
The comparative results on germanium extraction from lead-zinc production waste by microbial leaching, as well as by traditional chemical methods have been showed. The role of the microorganisms present in the original germanium raw material in the process of so-called chemical leaching of metals from it was studied. The bacterial-chemical nature of hydrometallurgical processes in which as opening solutions were used nonaggressive weakly acidic solutions is showed. It is established that using of thiobacteria allows to extract in the solution 99.0% of germanium within 1–2 days.
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