Treatment for reverse osmosis membranes

Details Treatment for reverse osmosis membranes Treatment for reverse osmosis membranes

C - Chemistry, Metallurgy

08

J

18/32

C08J 9/26 (2006.01) B01D 67/00 (2006.01) B01D 69/04 (2006.01) C08G 69/02 (2006.01)

Patent

CA 2014614

AD-5767 TITLE TREATMENT FOR REVERSE OSMOSIS MEMBRANES ABSTRACT OF THE DISCLOSURE A process for increasing the salt passage of polyamide reverse osmosis membranes and the resulting membrane is disclosed. The process involves treating the membrane with a dilute aqueous solution of an alkali metal permanganate followed by a stabilization treatment with a dilute aqueous solution of sodium bisulfite or hydrogen peroxide.

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