Patent ID: 8529759

Claim:
An electric deionized water production apparatus, comprising: a deionizing chamber to which a direct current field is applied, the deionizing chamber being packed with an ion-exchange material that allows ions to be discharged to migrate in a direction identical or opposite to a direction of water flow in the ion-exchange material, the ion-exchange material including a mixture of a monolith-shaped organic porous ion-exchange material and ion-exchange resin particles, the monolith-shaped organic porous ion-exchange material swelling or shrinking according to an ion exchange reaction, wherein ionic impurities adsorbed in the ion-exchange material are discharged from the electric deionized water production apparatus, and a physical elasticity of the monolith-shaped organic porous ion-exchange material maintains the packing of the deionization chamber independently of the swelling or shrinking according to the ion exchange reaction.