2007 Volume 1 Issue 10
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Li Qibin, Liu Dan. Effect of leachate recirculation frequency on the stabilization of anaerobic bioreactor landfill[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 32-36.
Citation: Li Qibin, Liu Dan. Effect of leachate recirculation frequency on the stabilization of anaerobic bioreactor landfill[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 32-36.
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Effect of leachate recirculation frequency on the stabilization of anaerobic bioreactor landfill

  • 1.

    School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 610031

  • 2.

    School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 610032

  • Received Date: 14/06/2007
    Accepted Date: 02/02/2007
    Fund Project:
  • The methanogenesis process and the changes of leachate of 4 simulated landfill columns with a leachate recirculation period of 1, 2, 3 and 5 days respectively have been studied through simulated experiment. Under the condition of adjusting the pH value of recirculated leachate with NaOH, the simulated anaerobic bioreactor landfill with higher leachate recirculation frequency began to produce methane earlier. But the difference between the time to produce methane was smaller while the recirculation period was under 3 days. It was shown that decline rate of COD, VFA concentration of leachate was fastest when the recirculation period is 3 days. Considering the time to begin to produce methane, the running cost in the start-up period and the stabilization rate in the methanogensis phase, the best period to recirculate leachate is 3 days in an anaerobic bioreactor landfill.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effect of leachate recirculation frequency on the stabilization of anaerobic bioreactor landfill

  • Received Date: 14/06/2007
  • Accepted Date: 02/02/2007
Fund Project:

Abstract: The methanogenesis process and the changes of leachate of 4 simulated landfill columns with a leachate recirculation period of 1, 2, 3 and 5 days respectively have been studied through simulated experiment. Under the condition of adjusting the pH value of recirculated leachate with NaOH, the simulated anaerobic bioreactor landfill with higher leachate recirculation frequency began to produce methane earlier. But the difference between the time to produce methane was smaller while the recirculation period was under 3 days. It was shown that decline rate of COD, VFA concentration of leachate was fastest when the recirculation period is 3 days. Considering the time to begin to produce methane, the running cost in the start-up period and the stabilization rate in the methanogensis phase, the best period to recirculate leachate is 3 days in an anaerobic bioreactor landfill.

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