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Kinetics of Chromium Reduction by Mixed Cultures During Growth Phase

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Abstract:

Hexavalent chromium reduction kinetic parameters were estimated for several mixed cultures using molasses as the carbon source and nitrate as the terminal electron acceptor. Mixed cultures were enriched from diverse environmental sources, and kinetic parameter comparisons are made between the consortia and a pure culture grown under the same conditions. A statistical analysis of the results indicated that some kinetic parameters exhibited significant differences, whereas others did not. It should be noted that those parameters with statistically significant differences were nonetheless numerically similar. Conservative values, therefore, could be assumed, or site-specific data obtained, for those parameters to design in situ bioremediation of chromium-contaminated sites.

Keywords: BIOLOGICAL KINETICS; BIOREMEDIATION; CHROMATE REDUCTION; GROUNDWATER; IN SITU; METAL; SOIL

Document Type: Research Article

DOI: https://doi.org/10.2175/106143000X138094

Publication date: 2000-09-01

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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