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

5 Citations (Scopus)


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
Number of pages4
Publication statusPublished - 2009
Event18th International Biohydrometallurgy Symposium, IBS 2009 - Bariloche, Argentina
Duration: Sept 13 2009Sept 17 2009

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Other18th International Biohydrometallurgy Symposium, IBS 2009

All Science Journal Classification (ASJC) codes

  • General Engineering


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