2010 Volume 4 Issue 6
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Hao Xiaowei, Huang Yizong, Cui Yanshan, Hu Ying, Liu Yunxia. Effects of red mud addition on fractionation and bio-accessibility of Pb and Zn in contaminated soil[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1431-1435.
Citation: Hao Xiaowei, Huang Yizong, Cui Yanshan, Hu Ying, Liu Yunxia. Effects of red mud addition on fractionation and bio-accessibility of Pb and Zn in contaminated soil[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1431-1435.
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Effects of red mud addition on fractionation and bio-accessibility of Pb and Zn in contaminated soil

  • 1.

    Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Beijing 100085,China；2.Graduate University of Chinese Academy of Sciences, Beijing 100049,China

  • 2.

    Graduate University of Chinese Academy of Sciences, Beijing 100049,China

  • Received Date: 02/09/2009
    Accepted Date: 01/06/2009
    Fund Project:
  • Effects of red mud addition on the fractionation and bio-accessibility of Pb and Zn in soil were studied by batch soil column incubation experiment. The results showed that all treatments with red mud addition could significantly decrease the concentrations of HOAc-soluble Pb and Zn. Compared with the control, the treatment with 5% red mud addition could significantly decrease the concentrations of HOAcsoluble Pb and Zn after 1, 2 and 3 months incubation (62.5%, 65.3% and 73.5% decrease, 56.7%, 65.8% and 67.4% decrease, for Pb and Zn, respectively). After 3 months incubation, the treatment with 1% red mud addition significantly decreased the concentration of bio-accessible Pb, however, all treatments including 1%, 2% and 5% red mud addition, significantly decreased the concentration of bio-accessible Zn. The results highlighted the potential of red mud amendments to reduce Pb and Zn bioavailability in contaminated soil.
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Effects of red mud addition on fractionation and bio-accessibility of Pb and Zn in contaminated soil

  • Received Date: 02/09/2009
  • Accepted Date: 01/06/2009
Fund Project:

Abstract: Effects of red mud addition on the fractionation and bio-accessibility of Pb and Zn in soil were studied by batch soil column incubation experiment. The results showed that all treatments with red mud addition could significantly decrease the concentrations of HOAc-soluble Pb and Zn. Compared with the control, the treatment with 5% red mud addition could significantly decrease the concentrations of HOAcsoluble Pb and Zn after 1, 2 and 3 months incubation (62.5%, 65.3% and 73.5% decrease, 56.7%, 65.8% and 67.4% decrease, for Pb and Zn, respectively). After 3 months incubation, the treatment with 1% red mud addition significantly decreased the concentration of bio-accessible Pb, however, all treatments including 1%, 2% and 5% red mud addition, significantly decreased the concentration of bio-accessible Zn. The results highlighted the potential of red mud amendments to reduce Pb and Zn bioavailability in contaminated soil.

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