Effect of bacterial treatment on silver recovery from Artvin-Kafkasor ore

Ozdemir Z., Ozbayoglu G., Atalay U., Ozcengiz G., Alaeddinoglu G.

8th International Mineral Processing Symposium (IMPS-2000), Antalya, Turkey, 16 - 18 October 2000, pp.553-556 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.553-556
  • Middle East Technical University Affiliated: Yes


The enhancement of the extraction of silver from Artvin-Kafkasor ore have been studied by the application of bio-oxidation with Thiobacillus ferrooxidans. The effects of various parameters such as bacterial treatment duration, inoculum size and growth kinetics were investigated. The bacterial treatment of -208 mum size ore with Thiobacillus ferrooxidans before cyanidation resulted in silver recoveries of above 60% while direct cyanidation could only yield 40.36% silver recovery.