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Filtration membrane module

  • US 5,482,625 A
  • Filed: 09/20/1994
  • Issued: 01/09/1996
  • Est. Priority Date: 01/07/1994
  • Status: Expired due to Term
First Claim
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1. A filtration membrane module submerged with a processed liquid in a processing tank comprising;

  • a plurality of flat, rigid membrane cartridges vertically placed in parallel to each other as properly spaced from the adjoining membrane cartridges;

    cleaning stream generating means for supplying a flow parallel to the membrane surfaces of the membrane cartridges which opposes to gaps defined between the membrane cartridges opposite to each other; and

    sucking means for sucking permeated liquid in each membrane cartridge which is communicated with the passage of permeated liquid in each membrane cartridge;

    each membrane cartridge having a membrane supporting plate and a filtration membrane covering the outer surface thereof; and

    the membrane supporting plate supporting the filtration membrane is being made hollow by using a rigid structural member, the inside of the plate forming a passage of permeated liquid, the membrane supporting plate having an opening formed on the surface opposite to the filtration membrane the opening communicating to the passage of permeated liquid.

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