| 摘要 |
<p>A wafer (10) providing transfer sheets of semipermeable membrane (21). Such wafers include peripheral support means (11) defining a generally cylindrical ring and having (14) and outside faces (15) and upper (12) and lower (13) faces and, a plurality of transverse sheet membrane sleeves (16) carried within the peripheral support means. Apparatus (60) for the separation of a fluid into permeate and retenate portions comprises a plurality of transverse sheet membrane wafers (10), vessel means (61) providing a first port (68) for receiving the fluid, a second port (69) for withdrawing the retentate and a third port (70) for withdrawing the permeate, means for compressing (74) the plurality of wafers in axial alignment, and permeate chamber means (72) within said vessel, separate from the feedstream and the retentate by the means for compressing (74) and peripheral support means (11). Separate methods are also provided for the manufacture of the wafers as well as for the separation of fluid feedstreams into permeate and retentate portions. A method of the latter type includes the steps of feeding the fluid into a module containing a plurality of semipermeable membrane sleeves arranged chord-wise in parallel alignment and oriented perpendicularly with respect to the longitudinal axis of the module; providing separate chambers for the permeate, communicating with the interior of the sleeves, and for said retentate, communicating with the areas between the membrane sleeves; and removing the permeate and retentate from the module.</p> |
