Adapting bacteria to low pH and high arsenic concentration for u

Details Adapting bacteria to low pH and high arsenic concentration for u Adapting bacteria to low pH and high arsenic concentration for u

1987-07-10

1989-12-19

Weimar, Elizabeth C.

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Adaptation or attenuation of cells

4352524, 435262, C12N 136, C12N 120, C22B 111

Patent

active

048882933

ABSTRACT:
Bacterial cultures of T. thiooxidans, T. ferrooxidans and L. ferrooxidans used to oxidize multimetallic sulfide ores are first adapted to high dissolved arsenic concentrations and low pH by subjecting the cultures in a solution containing dissolved arsenic, to successive incremental concentrations of arsenic while operating in a continuous mode.

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Norris, P. R., 1983, Iron and Mineral Oxidation With Leptospirillum-Like Bacteria, presented at: Fifth International Symposium on Biohydrometallurgy, Cagliari, Italy.
Pol'kin et al., 11th International Mineral Processng Congress, vol. 4, pp. 901-923 (1975).
E. Livesey-Goldblatt, Phillipe Norman, P. and D. R. Livesey-Goldblatt, Gold Recovery "From Arsenopyrite/Pyrite Ore by Bacterial Leaching and Cyanidation", presented at: Fifth International Symposium on Biohydrometallurgy, Cagliari, Italy.
Karavaiko, G. I., Chuchalin, L. K. and T. A. Pivovarova, 1985, Microbiological Leaching of Metals From Arsenopyrite Containing Concentrates, presented at: Sixth International Symposium on Biohydrometallurgy, Vancouver, Canada.
CIM Bulletin, Sep. 1983, B.C. Research Publication, R. Lawrence & A. Bruynesteyn, "Biological Pre-Oxidation to Enhance Gold and Silver Recovery From Refractory Pyrite Ores and Concentrates".

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