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This paper studies the effects of ultraviolet irradiation on the mutation of bacteria (i.e., Acidithiobacillus ferrooxidans LD-1) and on the bioleaching system for low-grade copper tailings. It is shown that ultraviolet irradiation can lead to an obvious LD-1 mutation, can improve bio-activity and bioleaching capability. The mutant LD-1 bacteria, after ultraviolet irradiation for 30min, had the best...
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