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Preparation of felt-metal supported modified polyvinyl alcohol composite hydrophilic ultrafiltration membrane

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Abstract

A novel technology of preparation of felt-metal supported modified polyvinyl alcohol(PVA) ultrafiltration(UF) membrane was invented, which could avoid the blockage of the holes of support layer and the leakage of the casting solution through the holes of support layer. Felt-metal supported ferric sulfate modified PVA composite UF membranes were prepared by the innovative technology. The results show that the composite membranes are used to treat 1 000 mg/L oil/water emulsion at trans-membrane pressure from 0.25 to 0.45 MPa, the permeate flux is from 36 to 52 L/(m2 · h), and the retention of chemical oxygen demand(COD) is over 92%. The composite membrane resistance increases with the increase of trans-membrane pressure.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China

    Qiu Yun-ren PhD & Wang Shuai

  2. School of Metallurgical Science and Engineering, Central South University, 410083, Changsha, China

    Zhang Qi-xiu

Authors
  1. Qiu Yun-ren PhD
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  2. Zhang Qi-xiu
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  3. Wang Shuai
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Correspondence to Qiu Yun-ren PhD.

Additional information

Foundation item: Project(2004036429) supported by the Postdoctoral Science Foundation of China

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Qiu, Yr., Zhang, Qx. & Wang, S. Preparation of felt-metal supported modified polyvinyl alcohol composite hydrophilic ultrafiltration membrane. J Cent. South Univ. Technol. 12, 448–452 (2005). https://doi.org/10.1007/s11771-005-0180-0

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  • DOI: https://doi.org/10.1007/s11771-005-0180-0

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