Demineralization of aqueous solution in cell including ionic...

Details Demineralization of aqueous solution in cell including ionic... Demineralization of aqueous solution in cell including ionic...

C - Chemistry, Metallurgy

02

F

204/170, 204/89

C02F 1/469 (2006.01) B01D 61/48 (2006.01) B01J 47/08 (2006.01)

Patent

CA 1289103

ABSTRACT OF THE DISCLOSURE Process and apparatus are provided for demineralizing aqueous solutions without using regenerating chemicals. Oppositely charged ions are electrolytically generated within electrode chambers and diffused into the stream of aqueous solution to be demineralized flowing in cross-current thereto. In their migration in response to the application of an electric potential, the ion streams are subjected to displacement steps in cation and anion exchange masses separated by selectively permeable ion exchange membranes. The aqueous solution alternately passes through the cation and anion exchange masses resulting in a demineralized aqueous stream and an enriched brine stream.

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