How microbes mobilize metals in ores: A review of current understandings and proposals for further research
| Autor: | H. L. Ehrlich |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Mineral
Chemistry Mechanical Engineering Metallurgy Metals and Alloys General Chemistry Geotechnical Engineering and Engineering Geology Redox Metal Chemical engineering Control and Systems Engineering Phase (matter) visual_art Metallic materials Materials Chemistry visual_art.visual_art_medium Current (fluid) |
| Zdroj: | Mining, Metallurgy & Exploration. 19:220-224 |
| ISSN: | 2524-3470 2524-3462 |
| DOI: | 10.1007/bf03403273 |
| Popis: | Modes of microbial attack of metal carbonates, metal silicates, metal oxides and metal sulfides are summarized. The current status of microbial redox mechanisms, whereby metals in metal oxides and sulfides are mobilized, is discussed. Opposing theories of a single mode of attack involving interaction with a microbially produced reductant or oxidant in the bulk phase and of dual modes of attack involving a reaction requiring physical contact between microbe and mineral surface on the one hand and microbial production of a reductant or oxidant in the bulk phase that reacts with the mineral on the other hand are considered. No one mode when finally completely unraveled should be expected to fit all cases. Some biochemical, electronmicroscopic and spectrophotometric approaches for elucidation of missing details of different modes are suggested. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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