Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid
Patent
1997-07-03
1999-04-06
Kim, John
Liquid purification or separation
Casing divided by membrane into sections having inlet
Energy recovery from treated liquid
210231, 21032172, 21032175, 21032184, 210638, 210660, 204627, 204630, 204632, 204638, 204639, B01D 6146, B01D 6150, B01D 6300
Patent
active
058913289
ABSTRACT:
An integral, monolithic frame-membrane is disclosed, such frame-membrane having a semi-permeable membrane portion and integral therewith a frame portion, the frame portion having one or more cavities, each cavity juxtaposed to the membrane portion, each cavity having at least one fluid entrance conduit communicating with an entrance manifold aperture and at least one fluid exit conduit communicating with an exit manifold aperture. The integral, monolithic frame-membrane may be used in apparatus for carrying out gas-separation; microfiltration; ultrafiltration; nanofiltration; reverse osmosis (i.e. hyperfiltration); diffusion dialysis; Donnan dialysis; electrodialysis (including filled-cell electrodialysis; i.e. electrodeionization); pervaporation; piezodialysis; membrane distillation; osmosis; thermo osmosis; and electrolysis with membranes. Also disclosed are pillows prepared from ion exchanging films or fabrics (which may be porous or non-porous), the pillows filled with ion exchange structures such as beads, fibers, fabrics or rods. The pillows may be used with the integral, monolithic frame-membranes, with separate frames and membranes or with frames only.
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Ionics Incorporated
Kim John
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