2013 Volume 7 Issue 4
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Mu Yongjie, Ye Jiexu, Sun Dezhi. Advanced treatment of leachate from MSW incineration by ozonation[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1535-1540.
Citation: Mu Yongjie, Ye Jiexu, Sun Dezhi. Advanced treatment of leachate from MSW incineration by ozonation[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1535-1540.
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Advanced treatment of leachate from MSW incineration by ozonation

  • 1.

    Beijing Key Laboratory for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China

  • 2.

    State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China

  • Received Date: 20/02/2012
    Accepted Date: 09/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • Leachate from municipal solid waste (MSW) incineration was advanced treated by ozonation after biological treatment. The results showed that, the constant of COD degradation rate increased with the increase of pH value obviously. The rate constant at pH=10.5 was 5.8 times as high as that at pH=4. When the ozone dosage was 52.92 mg/min, the pH value was 10.5 and the reaction time was 70 min, the removal efficiencies of UV254 and COD were 84.7% and 59.3%, respectively. COD removal efficiency decreased about 15% by the addition of tert-butyl alcohol(TBA) in the reaction system. The COD removed by hydroxyl radical oxidation accounted for 26.7% of the total COD removal quantity. The toxicity experiment results showed that 96 h-EC50 of the influent was 38% and 96 h-EC50 of the effluent after ozonation was 77%. This fact demonstrates that the toxicity of the wastewater after ozonation could be reduced markedly.
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Advanced treatment of leachate from MSW incineration by ozonation

  • Received Date: 20/02/2012
  • Accepted Date: 09/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: Leachate from municipal solid waste (MSW) incineration was advanced treated by ozonation after biological treatment. The results showed that, the constant of COD degradation rate increased with the increase of pH value obviously. The rate constant at pH=10.5 was 5.8 times as high as that at pH=4. When the ozone dosage was 52.92 mg/min, the pH value was 10.5 and the reaction time was 70 min, the removal efficiencies of UV254 and COD were 84.7% and 59.3%, respectively. COD removal efficiency decreased about 15% by the addition of tert-butyl alcohol(TBA) in the reaction system. The COD removed by hydroxyl radical oxidation accounted for 26.7% of the total COD removal quantity. The toxicity experiment results showed that 96 h-EC50 of the influent was 38% and 96 h-EC50 of the effluent after ozonation was 77%. This fact demonstrates that the toxicity of the wastewater after ozonation could be reduced markedly.

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