Electrodeionization apparatus and method

Details Electrodeionization apparatus and method Electrodeionization apparatus and method

1996-11-12

1999-01-12

Phasge, Arun S.

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

204529, 204533, 204536, 204632, 204647, B01D 6148

Patent

active

058581910

ABSTRACT:
An improved electrodeionization apparatus and method are provided. The electrodeionization apparatus includes an ion-concentrating compartment, an ion-depleting compartment, and electrolyte compartments, wherein alternating layers of anion exchange resins and cation exchange resins are positioned in the ion-depleting compartment, and the anion exchange resins comprise Type II anion resins. The incorporation of Type II anion material, alone or with Type I anion material, in anion permeable membranes and/or resins improves the electric current distribution, degree of resin regeneration, and deionization performance.

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