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A platform for research: civil engineering, architecture and urbanism
Study on removing selenate from groundwater by autohydrogenotrophic microorganisms
Abstract Performance of autohydrogenotrophic bacteria for bio-reduction of selenate (Se(VI)) under anaerobic conditions was investigated with batch experiments. Results showed Se(VI) was bio-reduced to selenite (Se(IV)) as an intermediate product, and then to elemental selenium (Se0). Reduction kinetics could be described by the pseudo-first-order model. In particular, the influences of pH value and temperature on Se(VI) reduction by autohydrogentrophic organisms were examined. The high degradation rate was achieved at pH 7.0 to 8.0; and the best reduction temperature was between 25°C and 35°C. This study is of help for treating groundwater with selenium contamination by autohydrogenotrophic bacteria as well as its reactor development.
Study on removing selenate from groundwater by autohydrogenotrophic microorganisms
Abstract Performance of autohydrogenotrophic bacteria for bio-reduction of selenate (Se(VI)) under anaerobic conditions was investigated with batch experiments. Results showed Se(VI) was bio-reduced to selenite (Se(IV)) as an intermediate product, and then to elemental selenium (Se0). Reduction kinetics could be described by the pseudo-first-order model. In particular, the influences of pH value and temperature on Se(VI) reduction by autohydrogentrophic organisms were examined. The high degradation rate was achieved at pH 7.0 to 8.0; and the best reduction temperature was between 25°C and 35°C. This study is of help for treating groundwater with selenium contamination by autohydrogenotrophic bacteria as well as its reactor development.
Study on removing selenate from groundwater by autohydrogenotrophic microorganisms
Xia, Siqing (author) / Shen, Shuang (author) / Liang, Jun (author) / Xu, Xiaoyin (author)
Frontiers of Environmental Science & Engineering ; 7 ; 552-558
2013-05-31
7 pages
Article (Journal)
Electronic Resource
English
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