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Enhanced recovery of silver from Artvin-Kafkasor ore by microbial treatment
Date
1999-06-23
Author
Salameh, M
Özcengiz, Gülay
Atalay, U
Ozbayoglu, G
Alaeddinoglu, NG
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In the Artvin-Kafkasor ore deposit gold and silver are the main precious metals and are associated with quartz and limonite. In the present investigation, a fungal culture isolated from a mine water was tested under laboratory conditions for its bioleaching potential for enhancing silver recovery prior to cyanidation. The silver recovery was expressed as both the silver dissolved after biotreatment and that recovered after cyanidation following biotreatment. Silver recovery increased as a function of fungal pretreatment time. After 40 days, silver recovery was about 83% (of which 15% was due to direct microbial action). The recovery by cyanidation alone, on the other hand (as observed with the uninoculated control), was 53%. These results suggest that the microbial action favours a more effective cyanidation by changing the physical properties of the ore.
Subject Keywords
MICROORGANISMS
URI
https://hdl.handle.net/11511/55851
Conference Name
13th International Symposium on Biohydrometallurgy (IBS 99)
Collections
Department of Biology, Conference / Seminar
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M. Salameh, G. Özcengiz, U. Atalay, G. Ozbayoglu, and N. Alaeddinoglu, “Enhanced recovery of silver from Artvin-Kafkasor ore by microbial treatment,” MADRID, SPAIN, 1999, vol. 9, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55851.
