Treatment of composite polyamide membranes to improve...

Details Treatment of composite polyamide membranes to improve... Treatment of composite polyamide membranes to improve...

B - Operations, Transporting

01

D

B01D 71/56 (2006.01) B01D 61/02 (2006.01) B01D 67/00 (2006.01) B01D 69/12 (2006.01)

Patent

CA 2309149

Composite polyamide reverse osmosis membranes are treated with an aqueous chlorinating agent at a concentration of 200 to 10,000 ppm for a time sufficient to improve flux, lower salt passage and increase the stability to base. In a preferred embodiment the membrane is treated with heated water at temperature of 40 ~C to 100 ~C before being exposed to the chlorine treatment.

L'invention concerne des membranes d'osmose inverse polyamides composites qui sont traitées avec un agent de chloruration aqueux à une concentration de 200 à 10.000 ppm pendant une période suffisante pour améliorer le passage des sels inférieurs et pour accroître la stabilité à la base. Selon un mode de réalisation préféré, la membrane est traitée avec de l'eau chauffée à une température comprise entre 40 ·C et 100 ·C avant de subir un traitement au chlore.

Affiliated with

Also associated with

Rating

Treatment of composite polyamide membranes to improve... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Treatment of composite polyamide membranes to improve..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of composite polyamide membranes to improve... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1998013