Method and apparatus for dehydration of water-containing substan

Details Method and apparatus for dehydration of water-containing substan Method and apparatus for dehydration of water-containing substan

1983-12-21

1985-10-29

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204301, 2041822, 2041823, B01D 1302

Patent

active

045499470

ABSTRACT:
A method and apparatus is provided for effecting dehydration of a water-containing substance held in a receiving compartment formed in an intervening space between a cathode and an anode by means of the electro-osmotic force of a microporous membrane. The apparatus of this invention has a semipermeable membranes disposed as diaphragms for the receiving compartment and the microporous membrane disposed on the anode side of the diaphragms arranged on the cathode side. It effects the dehydration of the water-containing substance by passing electric current between the two electrodes and discharges the water resulting from the dehydration through a space formed between the microporous membrane and the cathode side diaphragm. By this invention, various water-containing substances such as aqueous solutions, colloids, pastes, dispersions, and gels, which the conventional methods and apparatuses dehydrate with great difficulty, can be dehydrated at high speed with high efficiency.

REFERENCES:
patent: 3017338 (1962-01-01), Butler, Jr. et al.
patent: 4123342 (1978-10-01), Ahlgren
patent: 4295950 (1981-10-01), Cole

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