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Yin Zifei, Wang Jun, Ji Zhongguang, Hou Deyin. Microwave assisted cleaning of hydrophobic membrane[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1251-1255.
Citation: Yin Zifei, Wang Jun, Ji Zhongguang, Hou Deyin. Microwave assisted cleaning of hydrophobic membrane[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1251-1255.
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Microwave assisted cleaning of hydrophobic membrane

  • 1.

    School of Chemical & Environmental Engineering, China University of Mining & Technology(Beijing), Beijing 100083,China

  • 2.

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • Received Date: 03/04/2012
    Accepted Date: 24/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • Common pollutants of CaSO4 and humic acid on membrane surface in membrane distillation(MD) process were adopted to investigate the effect of microwave enhanced cleaning of hydrophobic membrane. The results show that for CaSO4 sediment on the surface of membrane, the efficiency of microwave assisted cleaning is higher than that of conventional cleaning, and the microwave enhancing effect is more obvious when the temperature and flow velocity of cleaning fluid are lower. As for humic acid sediment on the membrane surface, the initial flux recovery ratio is 88.4% through microwave assisted cleaning, which is 10.8% higher than that of conventional cleaning. And microwave assisted cleaning can alleviate hydrophilization relatively at the same time.
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Microwave assisted cleaning of hydrophobic membrane

  • Received Date: 03/04/2012
  • Accepted Date: 24/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: Common pollutants of CaSO4 and humic acid on membrane surface in membrane distillation(MD) process were adopted to investigate the effect of microwave enhanced cleaning of hydrophobic membrane. The results show that for CaSO4 sediment on the surface of membrane, the efficiency of microwave assisted cleaning is higher than that of conventional cleaning, and the microwave enhancing effect is more obvious when the temperature and flow velocity of cleaning fluid are lower. As for humic acid sediment on the membrane surface, the initial flux recovery ratio is 88.4% through microwave assisted cleaning, which is 10.8% higher than that of conventional cleaning. And microwave assisted cleaning can alleviate hydrophilization relatively at the same time.

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