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Method of cleaning membrane modules

  • US 20040217053A1
  • Filed: 02/06/2004
  • Published: 11/04/2004
  • Est. Priority Date: 08/09/2001
  • Status: Abandoned Application
First Claim
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1. A method for cleaning a membrane filtration module, the module comprising at least one membrane located in a feed-containing vessel, the membrane comprising a permeable wall, the method comprising:

  • a) conducting a filtration operation wherein a feed containing a contaminant is applied to a first side of the permeable wall and a filtrate is withdrawn from a second side of the permeable wall;

    b) suspending the filtration operation;

    c) performing a cleaning process on the permeable wall to dislodge a contaminant therefrom into a liquid surrounding the membrane;

    d) performing a high velocity sweep of the feed-containing vessel to remove the liquid containing the dislodged contaminant; and

    e) recommencing the filtration operation.

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