Study on Fouling and Cleaning of PVDF Membrane

Bofeng Zhang, Shihu Ma


The effects of different water sources on the fouling of PVDF membrane are different. On the basis of the scientific appraisal, the correct cleaning process and cleaning reagent are selected to recover the flux and other performances of PVDF membrane. The results indicate that the TMP (transmembrane pressure) of PVDF membrane can be effectively recovered by CIP (clean-in-place) process, and almost reaches the initial level even under the circumstance that PVDF membrane has been used for a certain time and its TMP can not be recovered by either physical cleaning process or CEB (chemically enhanced backwashes).

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