THERMOPHILIC BIOLEACHING OF ARSENOPYRITE USING SULFOLOBUS AND A SEMICONTINUOUS LABORATORY PROCEDURE

被引：21

作者：

LINDSTROM, EB

GUNNERIUSSON, L

机构：

[1] Unit for Applied Cell and Molecular Biology, University of Umeå, Umeå

[2] Department for Inorganic Chemistry, University of Umeå, Umeå

来源：

JOURNAL OF INDUSTRIAL MICROBIOLOGY | 1990年 / 5卷 / 06期

关键词：

Arsenopyrite; Gold recovery; Semi-continuous bioleaching; Semi-continuous pumping; Sulfolobus; Thermophilic bacteria;

D O I：

10.1007/BF01578096

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A laboratory equipment for pumping slurries is described. The pumping is performed semi-continuously by using a plastic syringe, a set of different valves, and a programmable electronic unit. The reproducibility of the pumping is demonstrated. Bioleaching of a gold-containing arsenopyrite slurry was done with Sulfolobus at 70°C using the semi-continuous procedure and with a retention time of 100 h for the mineral. Arsenic was completely released at a rate of 109 mg l-1 h-1. The gold recovery is related to the amount of iron and arsenic dissolved and is shown to have a correlation factor of approximately one relative to the release of arsenic. © 1990 Society for Industrial Microbiology.

引用

页码：375 / 382

页数：8

共 8 条

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