Output work of the electro-generative simultaneous leaching for Sphalerite-MnO_2 in the presence of Acidithiobacillus ferrooxidans

摘要

Sphalerite was used to study both the electro-generative simultaneous leaching (EGSL) and the bio-electro-generative simultaneous leaching (BEGSL) in this paper. The Relationship between potential, work output, and current for sphalerite in presence of A. Ferrooxidans and sterile, showed that the electro-generation trend enhanced in the presence of A. ferrooxidans for sphalerite. The Evans graph for sphalerite in presence of A. ferrooxidans and sterile showed that with the increase of current, the output potential decreased. The dissolved metal ion in the presence of A. ferrooxidans is nearly 30% higher than that in the absence of A. ferrooxidans; the electro-generative quantity in the former is about 130% more than that in the latter; the transferred charge due to the bacteria is more than that of EGSL process in the last stage of BEGSL.