ELECTRODEIONIZATION (EDI) SYSTSEM

EDI(Electrodeionization)is a new pure water and ultra pure water making technology which developed from 1990s. It combines electrodialysis and ion-exchange, uses selectively permeating feature of anion-cation exchange membrane to cation and anion, ion exchange feature of resin, forces ions moving directed under DC electric. Salt in water will be removed. Meanwhile, H+ and OH- from water electrodialysis will regenerate the resins, so no acid or alkali is needed.