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By adding a small amount of the amino acid cysteine to an acidic solution containing Thiobacillus ferroxidans cells and subsequent incubation with synthetic pyrite layers, the duration of the lag phase in the growth of T. ferrooxidans is minimized and the leaching rate of this sulfide is increased three times compared to the normal process without this biochemical additive.In the presence of cysteine,...
By adding a small amount of the amino acid cysteine to acidic solution in contact with pyrite, the activity of Thiobacillus ferrooxidans is largely enhanced and the leaching rate of this sulphide is increased three times compared to the normal process without this biochemical additive. In the presence of cysteine, pyrite can also be oxidised in the absence of bacteria with a leaching rate comparable...
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