Electrically regenerated ion exchange system

Details Electrically regenerated ion exchange system Electrically regenerated ion exchange system

1975-11-13

1977-06-28

Wyse, Thomas G.

Liquid purification or separation

Electrical insulating or electricity discharging

204180B, B01D 5700

Patent

active

040324524

ABSTRACT:
The electrical efficiency of an electrically regenerated ion exchange system is improved by using elongated ion exchange members having a continuous ion exchange phase that is more conductive in the exhausted form than it is in the regenerated form. Preferably, the system includes anion exchange members that extend through the wall of the demineralization compartment closest to the anode but do not extend through the wall of the demineralization compartment closest to the cathode, and cation exchange members that extend through the wall of the demineralization compartment closest to the cathode but do not extend through the wall of the demineralization compartment closest to the anode.

REFERENCES:
patent: 2812300 (1957-11-01), Pearson
patent: 3006828 (1961-10-01), Gaysowski
patent: 3645884 (1972-02-01), Gilliland
patent: 3705846 (1972-12-01), Kato et al.
patent: 3767600 (1973-10-01), Albright
patent: 3885069 (1975-05-01), Roberts et al.
Davis et al., Electro-Regeneration of Ion Exchange Resins, National Institute of Health Report AK-2-70-2108-F, 1972.
Gittens et al., Some Experimental Studies of Electrodeionization through Resin Packed Beds, U.K. Atomic Energy Authority Report No. AERE-R4517, (1964).
Sammon et al., An Experimental Study of Electrodeionization and its Application to the Treatment of Radioactive Wastes, U.K. Atomic Energy Authority Report No. AERE-R3137, (1960).
Prober et al., Electrolytic Regeneration of Ion Exchange Resins, Aero Chem. Research Labs, Inc. Report, Contract OSW 14-01-0001-1255, (1968).
Investigation and Development of an Electrolytic System for the Conversion of Saline and Brackish Waters, OSW Research and Development Progress Report No. 51, (1961).

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