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Chemcial Industry and Engineering 2008, Vol. 25 Issue (1) :28-31    DOI:
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Membrane Pollution and Cleaning Method in Concentration of 2-keto-L-gulonic Acid Using Nonafiltration
GE Xu-dong~1,GAO Rui-chang~2(1.Hebei Welcome Pharmaceutical Co.,Ltd.,NCPC,Shijiazhuang 050031,Hebei Province,China;2.School of Chemical Engneering and Technology,Tianjin University,Tianjin 300072,China)
(1.Hebei Welcome Pharmaceutical Co.,Ltd.,NCPC,Shijiazhuang 050031,Hebei Province,China;2.School of Chemical Engneering and Technology,Tianjin University,Tianjin 300072,China

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Abstract The reason of membrane pollution in nanofiltrate-concentration of 2-keto-L-gulonic acid was analysed.Chemical cleaning agent for nanofiltrate membrane was chosen and the effect of the kinds of cleaning agent on recovering ratio of membrane flux was examined.SEM was used to analyse the cleaning efficiency qualitatively.Results showed the recovering ratio of flux was 97.8% when cleaning agent S-001 was chosen.
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Received 2008-01-15; published 2008-01-15
Cite this article:   
GE Xu-dong~1,GAO Rui-chang~2.Membrane Pollution and Cleaning Method in Concentration of 2-keto-L-gulonic Acid Using Nonafiltration[J]  Chemcial Industry and Engineering, 2008,V25(1): 28-31
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