Patent ID: 9561971
Date: 2017-02-07
CPC Classifications: B01D,C02F,Y10T

Claim:
1. An electrodialysis unit comprising: a plurality of cathodes, a plurality of anodes and a plurality of membranes; wherein the cathodes and anodes are arranged alternately in an electrode stack, with a membrane in between each cathode and anode; and wherein the cathode and the anode are each formed of a single conductive plate such that both surfaces of the cathode plates and anode plates enclosed within the electrode stack are, in use, in conductive contact with the water being treated, wherein the conductive plates that form electrodes are clamped between and supported by non-conductive separators for separating the fluid flow into and out of the cathode flow paths and anode flow paths; and wherein the conductive plates are each provided with a seal that is bonded to a portion of the conductive plate and forms a shape corresponding to the shape of the outer edge of the separators, wherein the seal is bonded to two opposite sides of the conductive plate and not bonded to two other opposite sides of the conductive plate, and wherein the seal contacts the separators on either side of the conductive plate in order to form an enclosed electrode chamber around the conductive plate.