Precipitation of Cu-sulfides by copper-tolerant Desulfovibrio isolates

Olia V. Karnachuk, Keiko Sasaki, Anna L. Gerasimchuk, Olga Sukhanova, Denis A. Ivasenko, Anna H. Kaksonen, Jaakko A. Puhakka, Olli H. Tuovinen

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The purpose of this work was to isolate Cu-tolerant sulfate-reducers that could be used to produce copper sulfides under pure culture conditions. Three sulfate-reducing bacteria were isolated from wastewater effluents of a zinc-smelter in the Urals and their tolerance to copper varied between 325 and 2600 mg Cu l-1. Analysis of 16S rRNA gene sequences placed the isolates in the genus Desulfovibrio. The isolates showed pronounced saccharolytic growth. Growing cultures precipitated Cu2+ as covellite (CuS) within less than a week. Extended incubation for 1 month lead to the formation of chalcocite (Cu2S) and chalcopyrite (CuFeS2).

Original languageEnglish
Pages (from-to)219-227
Number of pages9
JournalGeomicrobiology Journal
Volume25
Issue number5
DOIs
Publication statusPublished - Jul 2008

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Environmental Chemistry
  • Environmental Science(all)
  • Earth and Planetary Sciences (miscellaneous)

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