Spiral filtration module with improved cleanability and...

Details Spiral filtration module with improved cleanability and... Spiral filtration module with improved cleanability and...

B - Operations, Transporting

01

D

B01D 61/20 (2006.01) B01D 61/10 (2006.01) B01D 63/10 (2006.01)

Patent

CA 2042699

Abstract A cleanable ultrafiltration device (10) and method of making same is the subject of the present invention. The device (10) comprises a housing (12) for receiving a feed stream of a liquid to be filtered and a membrane cartridge (14) disposed in the housing (12) for separating the feed stream into con- centrate and permeate. The cartridge (14) is disposed within that housing (12) in spaced relationship to accommodate the flow of the feed stream around the periphery of the cartridge (14) along its length. A plastic netting (26) is typically used for the cartridge/housing spacer (25). A potted end seal (28) blocks the flow of the by-pass feed stream at the outlet end (18) of the cartridge/housing assembly and forces all of the feed stream through the cartridge (14). This approach improves operating efficiency by elimination of the wasted by- pass flow associated with the prior art design, while main- taining module cleanability.

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