B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 61/32 (2006.01) A61M 1/18 (2006.01) B01D 61/02 (2006.01) B01D 61/14 (2006.01) B01D 63/04 (2006.01) B01D 65/08 (2006.01)
Patent
CA 2061063
This invention involves an improved tangential flow filtration procedure and device for a fluid medium, in which the fluid to be filtered is circulated in an unsteady flow regime through a circulation loop equipped with a filtration unit that has at least one membrane. The circulation loop is equipped with a mechanism, specifically a rotating disk in a housing, that regulates the flow of the liquid to be filtered but not the pressure, and periodically generates a pseudo-physiological flux through the membrane. The invention can be used in microfiltration, ultrafiltration and reverse osmosis.
La présente invention concerne un procédé et un module perfectionnés de filtration en milieu liquide sous flux tangentiel, selon lequel on fait circuler en régime instationnaire le liquide à filtrer dans une boucle de circulation munie d'un module de filtration comportant au moins une membrane. La boucle de circulation comporte un moyen, en particulier un disque tournant dans un carter, agissant sur le débit du liquide à traiter et non sur sa pression et permettant d'engendrer dans la membrane des débits pseudophysiologiques périodiques. L'invention trouve une application dans la microfiltration, l'ultrafiltration, et l'osmose inverse.
Grangeon Andre
Lenoir Jeanine
Pelissier Robert
Robic
Techsep
LandOfFree
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