2009 Volume 3 Issue 11
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Zhou Zuoming, Li Yan, Dong Meixia. Change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1985-1988.
Citation: Zhou Zuoming, Li Yan, Dong Meixia. Change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1985-1988.
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Change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment

  • 1.

    Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China

  • Received Date: 09/12/2008
    Accepted Date: 24/11/2008
    Fund Project:
  • A species of typical freshwater algaeChlorella pyrenoidosa Chick was selected as the experimental materials to investigate the change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment by algae acute toxicity test. The toxicity of tanning wastewater was significantly reduced after the treatment process. Through calculation of cell number and living chlorophyll-a content, the values of EbC50 and EeC50 were 16.6% and 13.0% for raw water, 19.3% and 15.6% for microelectrolysis effluent and 52.6% and 52.1% for SBR effluent, respectively. According to the principle for toxicity grade dividing given by Bulich, the toxicity level decreased from first order for raw water to second order for final effluent.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment

  • Received Date: 09/12/2008
  • Accepted Date: 24/11/2008
Fund Project:

Abstract: A species of typical freshwater algaeChlorella pyrenoidosa Chick was selected as the experimental materials to investigate the change of comprehensive toxicity of tannery wastewater through microelectrolysis-SBR treatment by algae acute toxicity test. The toxicity of tanning wastewater was significantly reduced after the treatment process. Through calculation of cell number and living chlorophyll-a content, the values of EbC50 and EeC50 were 16.6% and 13.0% for raw water, 19.3% and 15.6% for microelectrolysis effluent and 52.6% and 52.1% for SBR effluent, respectively. According to the principle for toxicity grade dividing given by Bulich, the toxicity level decreased from first order for raw water to second order for final effluent.

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