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Nitrification using polyvinyl alcohol-immobilized nitrifying biofilm on an O2-enriching membrane

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Abstract

A combination of cell immobilization and membrane aeration approaches was used in a biological reactor to treat NH4 + in wastewater. Nitrifying microorganisms, immobilized by polyvinyl-alcohol (PVA) and attached to the surface of a silicone membrane tube, were used to develop a novel reactor for nitrification. The immobilized biofilm had a rubber-like elasticity and resisted shear stress over 5 months of operation. The reactor removed 95% of ammonium, added at 1.97 g N m−2 d−1, with O−2 enriching the membrane.

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Authors and Affiliations

  1. Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Rd., Taipei, 106, Taiwan, Republic of China

    Yuan-Lynn Hsieh & Szu-Kung Tseng

  2. Department of Environmental Engineering, Tung Nan Institute of Technology, 92 Wan-Fu Hamlet, Shen-Kun Village, Taipei, Taiwan, Republic of China

    Yu-Jie Chang

Authors
  1. Yuan-Lynn Hsieh
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  2. Szu-Kung Tseng
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  3. Yu-Jie Chang
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Hsieh, YL., Tseng, SK. & Chang, YJ. Nitrification using polyvinyl alcohol-immobilized nitrifying biofilm on an O2-enriching membrane. Biotechnology Letters 24, 315–319 (2002). https://doi.org/10.1023/A:1014084700375

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  • DOI: https://doi.org/10.1023/A:1014084700375

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