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The electrochemical behavior of a semiconducting natural pyrite in the presence of bacteria

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Abstract

The electrochemical oxidation of a natural pyrite electrode in sterile and inoculated sulfuric acid solutions has been studied using both linear-scan voltammetric and chronoamperometric techniques. The bacteria used consist of a pyrite-adapted mixed culture ofThiobacillus ferrooxidans. The influence of the iron concentration and the presence of bacteria have been studied at different pH values. The results from these electrochemical measurements are discussed in conjunction with surface characterization.

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Authors and Affiliations

  1. Hydrometallurgical Group, School of Chemistry, Department of Chemical Engineering, University of Seville, Seville, Spain

    I. Palencia (Assistant Professor)

  2. Newmont Exploration Limited Metallurgical Services, 84108, Salt Lake City, UT

    R. Y. Wan (Senior Metallurgist)

  3. Department of Metallurgical Engineering, University of Utah, 84112, Salt Lake City, UT

    J. D. Miller (Professor)

Authors
  1. I. Palencia
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  2. R. Y. Wan
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  3. J. D. Miller
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Palencia, I., Wan, R.Y. & Miller, J.D. The electrochemical behavior of a semiconducting natural pyrite in the presence of bacteria. Metall Trans B 22, 765–774 (1991). https://doi.org/10.1007/BF02651153

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  • DOI: https://doi.org/10.1007/BF02651153

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