Biological processes for recovering heavy metals

Details Biological processes for recovering heavy metals Biological processes for recovering heavy metals

1993-02-26

1993-09-28

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423DIG17, C22B 1104

Patent

active

052483290

ABSTRACT:
Disclosed is an efficient biological process for recovering heavy metals from refractory ore, and a process for removing heavy metal contaminants from the soil. The process utilizes a potato extract growth medium (PEGM) to greatly increase the efficiency for recovering heavy metals from ores and for removing heavy metal contaminants from soil. Microbes which can be used in the process are manganese reducing Bacillus sp., or mutants thereof which retain the metal recovering properties of the parent microbe. Further, recombinant microbes, as disclosed herein, can be used in the same manner as the native microbe.

REFERENCES:
patent: 4740243 (1988-04-01), Krebs-Yuill
patent: 4752332 (1988-06-01), Wu
patent: 4765827 (1988-08-01), Clough et al.
Gupta, Asha and Henry L. Ehrlich (1989) "Selective and Non-Selective Bioleaching of Manganese from a Manganese-Containing Silver Ore" Journal of Biotechnology, 9:287-304.

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