Electodeionization apparatus and method

Details Electodeionization apparatus and method Electodeionization apparatus and method

1986-09-18

1990-05-15

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041824, 204301, B01D 1302

Patent

active

049255410

ABSTRACT:
An electrodeionization apparatus and process are provided for removing ions from liquids. Liquid to be purified is passed through depleting compartments containing mixed anion and cation exchange resin beads while a second liquid is passed through concentrating compartments free of ion exchange resin beads. Ions, under influence of a D.C. potential, pass from the depleting compartments into the concentrating compartments through ion permeable membranes. The beads in the depleting compartments are housed within subcompartments of controlled width and thickness and are retained therein by the ion permeable membranes which are secured to the wall of the subcompartments.

REFERENCES:
patent: 2799644 (1957-05-01), Kollsman
patent: 2923679 (1960-02-01), Kressman
patent: 3014855 (1961-12-01), Kressman
patent: 3149061 (1964-09-01), Parsi
patent: 3291713 (1966-12-01), Parsi
patent: 4439967 (1984-03-01), Sanchez et al.

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