Scouring method

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 65/02 (2006.01) B01D 63/04 (2006.01) B01D 65/04 (2006.01) B01D 65/06 (2006.01) B01D 69/08 (2006.01)

Patent

CA 2551202

A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes arranged in a membrane module by providing, from within the module, by means other than gas passing through the pores of said membranes, gas bubbles in a uniform distribution relative to the porous membrane array such that the bubbles move past the surfaces of the membranes to dislodge fouling materials therefrom. The membranes are arranged in close proximity to one another and mounted to prevent excessive movement therebetween. The bubbles also produce vibration and rubbing together of the membranes to further assist removal of fouling materials.

Une méthode et un appareil pour retirer les matériaux encrassés de la surface de plusieurs barrières poreuses disposées dan un module de barrière en fournissant, depuis l'intérieur du module, par un moyen autre que le gaz passant à travers les pores desdites barrières, des bulles de gaz en une distribution uniforme par rapport au réseau de barrières poreuses, de sorte que les bulles se déplacent au-delà des surfaces des barrières afin de déloger les matériaux encrassés qui se trouvent dessus. Les barrières sont disposées à proximité immédiate l'une de l'autre et elles sont montées afin de prévenir le mouvement excessif entre elles. Les bulles produisent également de la vibration et se frottent ensemble sur les barrières afin de favoriser encore davantage l'enlèvement des matériaux encrassés.

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