Regenerated cellulose porous membrane

摘要

OF DISCLOSURE A pore diffusion type flat membrane separation apparatus X including a 5 plurality of flat membranes 7 and a plurality of flat plate-like supports 1 arranged alternately with each other, each flat membrane 7 defining a plurality of pores and configured to separate a predetermined dispersed substance contained in a solution by a pore diffusion technique, each flat plate-like support 1 having a flow conduit 2 on one or both faces thereof. A ratio between 10 a spatial volume of the flow conduit 2 and a membrane area of the flat membrane 7 is set from 0.04 to 0.4 cm. The flat plate-like support 1 includes, in at least two positions in a lateral face thereof, water conduits 3 in communication with the flow conduit 2, so that flow directions of the solution in the flow conduits 2 of upper and lower flat plate-like supports 1 across the flat 15 membrane 7 may be substantially same directions. The flat plate-like support 1 and the flat membrane 7 can be assembled with and disassembled from each other. 2809001_ (GHMatters) P78827AU.1 299/11 WO 2007/102427 1/5 PCT/JP2007/054055 8-- 3 1 (1ab) O O O 0 0 O'0