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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1114

Title: Focus on CSIR research in pollution and waste: High sulphide Concentrations tolerated by sulphate reducing bacteria
Authors: Greben, H
Keywords: Sulphide concentration
Stockholm world water week, 13-17 August 2007
Acid mine drainage
AMD
Pyrites
SRB
Issue Date: Aug-2007
Publisher: CSIR Natural Resources and the Environment 2007
Citation: Greben, H. 2007. Focus on CSIR research in pollution and waste: High sulphide Concentrations tolerated by sulphate reducing bacteria. 2007 Stockholm world water week, 13-17 August 2007, 2 p.hide
Abstract: Acid mine drainage (AMD) is a common result of mining activities caused by bacterial oxidation of sulphide minerals (pyrite) that results in sulphate rich waste water. AMD can be treated biologically in the presence of sulphate reducing bacteria (SRB) and organic matter such as ethanol. During this process hydrogen sulphide (H2S) is formed, which can have toxic effects on the methanogenic activity (Koster et al.,1986) as well as on the sulphidogenic bacteria (Okabe et al., 1995). Lens & Hulshoff Pol (2000) showed that at neutral pH values, free H2S (which is more toxic than HS-), accounts for 50% of total dissolved sulphide, whereas at pH 8 it is only around 10%.
Description: 2007 Stockholm world water week
URI: http://hdl.handle.net/10204/1114
Appears in Collections:Pollution and waste
General science, engineering & technology

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