Reverse osmosis membranes

Details Reverse osmosis membranes Reverse osmosis membranes

B - Operations, Transporting

01

D

18/32, 117/88.5

B01D 67/00 (2006.01)

Patent

CA 1318091

? ABSTRACT An improved reverse osmosis membrane and process for making the same is described. The membrane is prepared by treating an aromatic polyamide reverse osmosis membrane with nitrous acid or a diazonium compound. The resulting membrane possesses improved chlorine resistance. When the nitrous acid treatment is employed 7 the water flux of polyamide membranes is frequently increased with little or no effect on the salt rejection of the membrane. 35,659-F ?

556201

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