The Electropure EDI is manufactured by SnowPure LLC, USA, makers of high purity water modules (www.snowpure.com).
The EDI module replaces the conventional mixed bed DI unit which produces high purity water upto 18.2 Meg-Ohms - cm resistivity unlike mixed bed unit which requires regeneration. Electropure EDI does not require regeneration.
The Electropure EDI design combines two well-established water purification technologies – electrodialysis & ion-exchange resin deionization . Electopure’s EDI removes ions by forcing them out of the feed streams via an electric potential . This process uses a combination of ion-selective membranes & ion exchange resins sandwiched between two electrodes ( anode (+) and cathode(-) under a DC voltage potential to remove ions from RO pretreated water. Result is very low conductivity ultrapure water which can be produced continuously up to 18.2 Meg-Ohms - cm resistivity.