×

Filtration System

  • US 20080093297A1
  • Filed: 01/13/2006
  • Published: 04/24/2008
  • Est. Priority Date: 01/14/2005
  • Status: Abandoned Application
First Claim
Patent Images

1. :

  • A method of cleaning a permeable hollow membrane in an arrangement of the type wherein a pressure differential is applied across the wall of the permeable hollow membrane immersed in a liquid suspension, said liquid suspension being applied to the outer surface of the permeable hollow membrane to induce and sustain filtration through the membrane wall wherein;

    (a) some of the liquid suspension passes through the wall of the membrane to be drawn off as clarified liquid or permeate from the hollow membrane lumen, and (b) at least some of the solids are retained on or in the hollow membrane or otherwise as suspended solids within the liquid surrounding the membrane, the method of cleaning comprising the steps of;

    (i) producing mechanical agitation between the membrane and the liquid suspension to dislodge at least some of the retained solids, and wherein the method further includes removing, at least partially, liquid from the feed side of the membrane before and/or during the step of producing the mechanical agitation.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×