Leaching of pyrite-arsenopyrite concentrate in bioreactors during continuous cultivation of a thermoacidophilic microbial community
| Autor: | Iraida A. Tsaplina, A. E. Panyushkina, N. V. Grigor’eva, Tamara F. Kondrat'eva, V. S. Melamud |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Arsenopyrite Sulfide Metallurgy chemistry.chemical_element engineering.material Biology Pulp and paper industry Applied Microbiology and Biotechnology Microbiology Sulfur Microbial population biology chemistry Antimony visual_art engineering visual_art.visual_art_medium Bioreactor Pyrite Arsenic |
| Zdroj: | Microbiology. 83:568-576 |
| ISSN: | 1608-3237 0026-2617 |
| DOI: | 10.1134/s0026261714050269 |
| Popis: | A community of thermoacidophilic chemolithotrophic microorganisms was shown to exhibit enhanced efficiency of leaching and biooxidation of the gold-bearing pyrite-arsenopyrite flotation concentrate in continuous mode of cultivation. Under the optimal values of growth parameters, the degree of oxidation of sulfide arsenic, iron, sulfur, and antimony in the line of three laboratory reactors (D = 0.004 h−1) was 99.55, 98.87, 99.65, and 97.08%, respectively, while gold recovery from the solid biooxidation residue was 97.4%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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