EDI(Eiecterodeionization)is a new pure water and super pure water producing technics which developed from 1990s. The technics skillfully integrate electrodialysis and ionexchange, through selectively permeating to kation and anion, and exchanging to ions, get the ions to move in a direction under DC to complete salt taking-off water, meanwhile super pure water can be produced continuously without acid & alkali chemical regeneration.

High purity water facility is working with RO facilities combining with ion-exchange bed or EDI, ion-exchange bed is working by ion-exchange resin in electrolyte solution, can be used to wipe off all kinds of kation and anion, is a method to produce high purity water , which can not be substituted. Ion-exchange equipment is of kation exchanging equipment and anion equipment. When the raw water passing ion-exchange pole, the kation and anion(HCO3-plasma ion)in water will exchange with H+ in positive resin and OH- in negative resin to get salt taking-off. The combination of kation and anoin will get the water higher purified.

Applies for super water in electrical,chemical,hospital water,medium-high pressure supplementing water,resistance 2-18MQ・cm