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Maintenance cleaning for membranes

  • US 20040007525A1
  • Filed: 06/16/2003
  • Published: 01/15/2004
  • Est. Priority Date: 07/30/1999
  • Status: Abandoned Application
First Claim
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1. A method for cleaning one or more membranes normally immersed in water containing solids and used to produce a permeate on the insides of the membranes, comprising the steps of:

  • performing one or more cleaning events per week, wherein, each cleaning event comprises the steps of flowing a chemical cleaner through the membranes to provide a chemical cleaner in or adjacent the membranes for a period of time; and

    , the cleaning events reduce the frequency of necessary recovery cleanings of the membranes.

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