Spiral wound membrane module and method of manufacture and use

Details Spiral wound membrane module and method of manufacture and use Spiral wound membrane module and method of manufacture and use

B - Operations, Transporting

01

D

182/14.2

B01D 63/10 (2006.01)

Patent

CA 1318863

ABSTRACT OF THE DISCLOSURE A spirally wound, high flux membrane module which comprises a feed inlet, a concentration outlet and two permeate outlets and one or more membrane leaves wrapped about a central permeate flow tube to define a permeate flow path in one or more of the membrane leaves and wherein the improvement comprises one or more of the membrane leaves containing two or more separate permeate flow compartments within the membrane leaf to provide for the separate permeate flow of the permeate within the separator compartments to the permeate outlet thereby reducing the area of the permeate back pressure and reducing membrane wrinkling and membrane failure particularly during the membrane cleaning cycles. A method of reducing permeate back pressure within a spirally wound membrane module, which method comprises subdividing the permeate flow path in one or more of the spirally wound membrane leaves into two or more separate permeate flow compartments to provide for the separate radial permeate flow of the permeate to the permeate central tube and permeate outlet.

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