Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid
Patent
1979-05-15
1980-11-25
Hart, Charles N.
Liquid purification or separation
Casing divided by membrane into sections having inlet
Energy recovery from treated liquid
210433M, 2104971, B01D 3100
Patent
active
042357233
ABSTRACT:
This invention relates to a reverse osmosis membrane module for separating a selected fluid component from a feed stock. The module comprises a mandrel having an axial passageway forming a flow path for the selected fluid component through the mandrel. A flow guide means is attached to the mandrel and forms a channel for the selected fluid component as it flows through the membrane module. A plurality of generally rectangular membrane envelopes are joined to the flow guide mandrel and are formed from a plurality of elongated permeate collector sheets each forming a flow path for the selected fluid component from the outer periphery of the envelope to the flow guide. A plurality of folded sheets of support material with each sheet having predetermined membrane areas where reverse osmosis occurs are joined to the collector sheets so as to form the membrane envelope. Each sheet of support material is formed such that there are no fold lines on the membrane areas where reverse osmosis occurs. Finally, a flow guide spacer is disposed between adjacent envelopes such that one end of each of the flow guide spacers is located in the area where the support sheet is folded and where no reverse osmosis takes place.
REFERENCES:
patent: 3367504 (1968-02-01), Westmoreland
patent: 3386583 (1968-06-01), Merten
patent: 3397790 (1968-08-01), Newby et al.
patent: 3417870 (1968-12-01), Bray
patent: 3510004 (1970-05-01), Hoectzenbein
patent: 3872014 (1975-03-01), Schell
"Reverse Osmosis, Ultrafiltration and Eastman Membrane", Eastman Kodak Co. 1971.
Hart Charles N.
Hydranautics
Sadowski David R.
Zaitlen Richard H.
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