Биотехнология извлечения металлов из сульфидных руд

Т. И. Кузякина; Т. С. Хайнасова; О. О. Левенец

Vol. 12 No. 2 (2008),

Vol. 12 No. 2 (2008)

Biotechnology of extraction of metals from sulfidic ores

Published 2008-12-28

Т. И. Кузякина⁺⁻
Т. С. Хайнасова⁺⁻
О. О. Левенец⁺⁻

Т. И. Кузякина

Т. С. Хайнасова

О. О. Левенец

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Keywords

bacterial and chemical leaching
chemolithotrophic microorganisms
sulphide ores

Section

Results of the Scientific Researches

Abstract

Recovery of valuable components using microorganisms serves a recognized biotechnological method of treatment of sulfidic ores. This technology is economically favorable and ecologically safe. Perspectives of technology of bioleaching are described. The systematics of microorganisms used in bioleaching and their role in this process are shown. Today the main microorganisms used in bioleaching are chemolithotrophic acidophilic Acidithiobacillus ferrooxidans, At. thiooxidans, Leptospirillum ferrooxidans. Due to the development of stirred-tank bioleaching more attention is paid on moderately thermophilic and thermophilic bacteria and archaea, which provide higher speed of oxidation of sulfides at high temperatures.

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