Balanced pressure tubular molecular filtration system

Details Balanced pressure tubular molecular filtration system Balanced pressure tubular molecular filtration system

B - Operations, Transporting

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B01D 61/02 (2006.01) B01D 63/06 (2006.01) B01D 63/16 (2006.01) B01D 65/08 (2006.01) B01D 69/10 (2006.01)

Patent

CA 1105842

BALANCED PRESSURE TUBULAR MOLECULAR FILTRATION SYSTEM Abstract of the Disclosure A balanced pressure tubular molecular filtration (Reverse Osmosis or Ultra Filtration) system in which semipermeable membranes are cast on or inserted into internal passages of a semiporous tubular substrate, and may also be cat on or affixed to the external surface of said semiporous tubular substrate, said tubular substrate also having one or more low pressure passages for collecting permeate water passing through said semiporous membranes, said tubular substrate being installed in a pressure vessel and operated in such a way that its external surface and all of its internal membrane coated passages are exposed to operating pressure, so that mechanical forces are in balance, thereby overcoming hoop stress and burst strength problems common to internal pressure tubular molecular filtration designs.

289592

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