2013 Volume 7 Issue 4
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Ning Guixing, Zhang Xin, Wang Kai, Jiang Anping, Wang Guilin. Application of nanofiltration technology in treatment of urban soild composting leachate[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1440-1444.
Citation: Ning Guixing, Zhang Xin, Wang Kai, Jiang Anping, Wang Guilin. Application of nanofiltration technology in treatment of urban soild composting leachate[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1440-1444.
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Application of nanofiltration technology in treatment of urban soild composting leachate

  • 1.

    Research and Design Institute of Beijing Sound Internation Group Co.Ltd., Beijing 101102, China

  • 2.

    Shanghai Tianchen Environmental Protection Co. Ltd., Shanghai 201814, China

  • Received Date: 28/05/2012
    Accepted Date: 09/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • Nanofiltration membrane has many advantages to treat effluent from amembrane bio-reactor. A study was carried out to evaluate the recovery rate of composting leachate and change of COD. The results showed that COD of MBR effluent was less than 800 mg/L~900 mg/L, COD of the nanofiltration membrane effluent was less than 100 mg/L. Recovery rate of direct run nanofiltration system was 40%~50%. Inner loop run recovery rate was 75%~80%. Concentrated segment rate was 9.3%~11.8%.The total recovery rate was 80.4%~82.0%. Accorading to the requirement of velocity along membrane surface, inflow of the membrane must be more than 8 m3/h. The membrane pressure, inflow and circulation flow were key factors to affect the membrane flux.
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Application of nanofiltration technology in treatment of urban soild composting leachate

  • Received Date: 28/05/2012
  • Accepted Date: 09/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: Nanofiltration membrane has many advantages to treat effluent from amembrane bio-reactor. A study was carried out to evaluate the recovery rate of composting leachate and change of COD. The results showed that COD of MBR effluent was less than 800 mg/L~900 mg/L, COD of the nanofiltration membrane effluent was less than 100 mg/L. Recovery rate of direct run nanofiltration system was 40%~50%. Inner loop run recovery rate was 75%~80%. Concentrated segment rate was 9.3%~11.8%.The total recovery rate was 80.4%~82.0%. Accorading to the requirement of velocity along membrane surface, inflow of the membrane must be more than 8 m3/h. The membrane pressure, inflow and circulation flow were key factors to affect the membrane flux.

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