2013 Volume 7 Issue 3
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Tan Haoqiang, He Wenjie, Han Hongda, Zheng Chengzhi, Ma Yue, Chen Yuzhuo, Bu Jianwei. Cadmium removal in water emergency treatment of conventional process enhanced by chemical precipitation[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 848-852.
Citation: Tan Haoqiang, He Wenjie, Han Hongda, Zheng Chengzhi, Ma Yue, Chen Yuzhuo, Bu Jianwei. Cadmium removal in water emergency treatment of conventional process enhanced by chemical precipitation[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 848-852.
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Cadmium removal in water emergency treatment of conventional process enhanced by chemical precipitation

  • 1.

    School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China

  • 2.

    Tianjin Waterworks Group Co. Ltd., Tianjin 300040, China

  • 3.

    Tianjin Huayu Membrane Technology Co. Ltd., Tianjin 300100, China

  • Received Date: 21/01/2012
    Accepted Date: 11/11/2011
    Available Online: 18/03/2013
    Fund Project:
  • With sodium hydroxide being added into conventional water treatment process, the study on cadmium removal in polluted water was carried out. The results showed that the method removed cadmium effectively and steadily, which can be used in emergency treatment. Affecting factors of pH, cadmium concentration and coagulant dosage were analyzed by gray correlation analysis. The analysis indicated that gray correlation grade of affecting factors was pH in effluent of filtration＞coagulant dosage＞cadmium concentration. When cadmium pollution happens in source water, cadmium is removed by adjusting the pH in effluent of filtration in conventional water treatment. The control value of pH is relevant to source water quality.
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Cadmium removal in water emergency treatment of conventional process enhanced by chemical precipitation

  • Received Date: 21/01/2012
  • Accepted Date: 11/11/2011
  • Available Online: 18/03/2013
Fund Project:

Abstract: With sodium hydroxide being added into conventional water treatment process, the study on cadmium removal in polluted water was carried out. The results showed that the method removed cadmium effectively and steadily, which can be used in emergency treatment. Affecting factors of pH, cadmium concentration and coagulant dosage were analyzed by gray correlation analysis. The analysis indicated that gray correlation grade of affecting factors was pH in effluent of filtration＞coagulant dosage＞cadmium concentration. When cadmium pollution happens in source water, cadmium is removed by adjusting the pH in effluent of filtration in conventional water treatment. The control value of pH is relevant to source water quality.

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