Bioleaching of enargite by arsenic-tolerant Acidithiobacillus ferrooxidans

Keiko Sasaki, Koichiro Takatsugi, Tsuyoshi Hirajima, Naofumi Kozai, Toshihiko Ohnuki, Olli H. Tuovinen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Acidithiobacillus ferrooxidans was acclimatized to 1000 mg/L arsenic(V) and then used for the bioleaching of enargite (Cu3AsS4) at pH 2. Secondary minerals formed during the bioleaching of enargite were characterized by X-ray diffraction, FT- infrared spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. Oxidative dissolution of enargite resulted in the formation of elemental sulfur, arsenate and oxidized sulfur species including jarosites and possibly also schwertmannite at pH 2.

Original languageEnglish
Title of host publicationBiohydrometallurgy 2009
Subtitle of host publicationA Meeting Point between Microbial Ecology, Metal Recovery Processes and Environmental Remediation - Selected, peer rev. papers 18th Int. Biohydrometallurgy Symp., IBS 2009
Pages485-488
Number of pages4
DOIs
Publication statusPublished - Dec 28 2009
Event18th International Biohydrometallurgy Symposium, IBS 2009 - Bariloche, Argentina
Duration: Sep 13 2009Sep 17 2009

Publication series

NameAdvanced Materials Research
Volume71-73
ISSN (Print)1022-6680

Other

Other18th International Biohydrometallurgy Symposium, IBS 2009
CountryArgentina
CityBariloche
Period9/13/099/17/09

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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