Patent ID: 6709598
Filing Date: 2004-03-23
Classification: B01D,B01J

Abstract:
A hollow fiber device comprising a porous hollow fiber bundle wherein the bundle is formed of curved fibers, said hollow fibers are curved so as to create Dean vortices within the fibers, said bundle being within a housing, said housing having a feed stream inlet on one end and a feedstream outlet on another end, said inlet and outlet being in communication with the inner cavity of the lumens of the bundle, said housing having a filtrate area between the outer surface of the bundle and the housing wall, said filtrate area having an outlet and said filtrate outlet being connected to a downstream outlet and a circulation loop, said loop containing a pump for moving filtrate through the loop, said loop being connected to a filtrate inlet located at an end opposite the end of the housing containing the filtrate outlet and being capable of controlling transmembrane pressure of the device.