Aeration method and apparatus for filtration

Details Aeration method and apparatus for filtration Aeration method and apparatus for filtration

B - Operations, Transporting

01

D

B01D 65/02 (2006.01) B01D 63/02 (2006.01) B01D 65/08 (2006.01)

Patent

CA 2493315

A method and filtration module (5) for providing gas bubbles within an array of vertically disposed porous hollow membranes (6) to clean the outer surfaces of said membranes (6) when the array is immersed in a liquid by feeding (10) the gas bubbles into the array transversely of the vertical axis of the array. In one preferred form, the gas bubbles are retained within the array using a sleeve (11) surrounding the array (6) at least along part of its length.

L'invention concerne un procédé et un module de filtration (5) servant à acheminer des bulles de gaz dans un ensemble de membranes (6) creuses, poreuses, disposées verticalement, pour nettoyer les surfaces extérieures desdites membranes (6) lorsque ledit ensemble est immergé dans un liquide. Ledit procédé consiste à acheminer (10) les bulles de gaz dans ledit ensemble, de manière transversale à l'axe vertical de ce dernier. Dans un mode de réalisation préféré de l'invention, les bulles de gaz sont retenues dans ledit ensemble au moyen d'une gaine (11) entourant ce dernier (6) sur au moins une partie de sa longueur.

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