Chromate Reduction in Anaerobic Systems by Bacterial Strain Pseudomonas aeruginosa CRM100

Authors

  • Diego Salamanca,

    1. Universität Stuttgart, Institut für Siedlungswasserbau, Wassergüte- und Abfallwirtschaft, Bandtäle 2, 70569 Stuttgart, Germany
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  • Dr.-Ing. Niko Strunk,

    1. Universität Stuttgart, Institut für Siedlungswasserbau, Wassergüte- und Abfallwirtschaft, Bandtäle 2, 70569 Stuttgart, Germany
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    • Dr.-Ing. Niko Strunk died in the beginning of 2013.

  • Prof. Dr. Karl-Heinrich Engesser

    Corresponding author
    1. Universität Stuttgart, Institut für Siedlungswasserbau, Wassergüte- und Abfallwirtschaft, Bandtäle 2, 70569 Stuttgart, Germany
    • Universität Stuttgart, Institut für Siedlungswasserbau, Wassergüte- und Abfallwirtschaft, Bandtäle 2, 70569 Stuttgart, Germany
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Abstract

The biological reduction of soluble chromate(VI) compounds by bacteria was investigated as a possible treatment for industrial wastewater. A chromate(VI) reducing bacterial strain CRM100 was isolated from a wastewater treatment plant and identified as Pseudomonas aeruginosa. Strain CRM100 using citrate as carbon source, was able to reduce 99.8 % of chromate(VI) added at a concentration of 100 mg L–1. The results demonstrated the potential applicability of CRM100 for the bioremediation of heavy metal contaminated wastewater.

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