Patent ID: 7097753
Filing Date: 2006-08-29
Classification: B01D,B01J,C02F

Abstract:
1. A helical electrodeionization device that is spirally wound to have a helical configuration, which helical electrodeionization device comprises; an axially extending conduit generally located along a central axis of the helical electrodeionization device; a first electrode; at least one membrane bag formed from an anion exchange membrane and a cation exchange membrane; a second electrode; said at least one membrane bag having a concentrate flow channel and a dilute flow channel located adjacent said at least one membrane bag, said at least one membrane bag and said diluent flow channel being wound about said axially extending conduit and said dilute flow channel being: i) positioned between layers of said at least one wound membrane bag, ii) filled with an ion exchange resin, iii) comprising at least two integrated support frames each of which includes an array of bars that are spaced apart, and iv) made up of interphase longitudes and hollow latitudes; and a housing for housing the foregoing components, wherein said at least two support frames are wound on or in said membranes and spaced apart so as to define an interphase aisle structure between adjacent pairs of the at least two support frames.