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Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane

  • US 7,410,584 B2
  • Filed: 10/08/2007
  • Issued: 08/12/2008
  • Est. Priority Date: 01/31/2005
  • Status: Expired due to Fees
First Claim
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1. A method of treating wastewater comprising:

  • a) flowing a stream comprising mixed liquor suspended solids and fixed growth solids to a high rate clarification stage, thus forming a high rate clarifier effluent, a first waste activated sludge stream, and a return activated sludge stream; and

    b) flowing the high rate clarifier effluent stream to a membrane stage comprising a membrane media, producing a membrane reject stream and a treated effluent permeate stream.

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