【摘 要】
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The interfacial interaction of sulfur oxidizing microorganisms (SOM) and sulfide minerals was characterized by using synchrotron radiation-based S/Fe/Cu K-edge X-ray absorption near-edge spectroscopy
【机 构】
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School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;Key
【出 处】
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The 6th International Conference on Hydrometallurgy(第六届国际湿法冶
论文部分内容阅读
The interfacial interaction of sulfur oxidizing microorganisms (SOM) and sulfide minerals was characterized by using synchrotron radiation-based S/Fe/Cu K-edge X-ray absorption near-edge spectroscopy (XANES), X-ray Diffraction, hard X-ray microfocus, and soft X-ray spectromicroscopy together with other accessory approaches such as SEM/EDS, Raman spectroscopy, FT-IR spectroscopy,and electrochemical methods, in which the mineral surface S/Fe/Cu speciation, extracellular polymer substance (EPS) and SH group of microbial cells, adsorption of cells to the specific mineral surface sites were investigated during interaction between chalcopyrite or elemental sulfur and Acidithiobacillus ferrooxidans, Sulfobacillus thermosulfidooxidans, or Acidianus manzaensis.
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