Adapting bacteria to low pH and high arsenic concentration for use in oxidizing sulfide ores
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United States of America Patent
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Dec 19, 1989
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N/A
app pub date -
Jul 10, 1987
filing date -
Jul 10, 1987
priority date (Note) -
Expired
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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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