Patent ID: 8623210
Filing Date: 2014-01-07
Classification: B01D,C08K,G01N

Abstract:
1. A pore diffusion type flat membrane separation apparatus comprising: a plurality of flat membranes; and a plurality of flat plate-like supports arranged alternately with the plurality of flat membranes, an average pore diameter of each flat membrane is set from 5 nm to 500 nm, and a porosity of each flat membrane is set from 0.6 to 0.9; a ratio between a spatial volume of any flow conduit and a membrane area of a corresponding flat membrane is set from 0.04 to 0.4 cm; each flat plate-like support includes, in at least two positions in lateral faces thereof, water conduits in communication with a flow conduit, so that flow directions of said solution in flow conduits of upper and lower flat plate-like supports separated by a flat membrane may be substantially in the same direction; a treatment liquid subjected to a diffusion treatment is caused to flow under a flat membrane and a diffusion liquid in which a dispersed substance flows is caused to flow on and upwardly of a flat membrane; an outer side flat plate-like support includes a flow conduit in one face thereof, a water conduit on an inlet side, and a water conduit on an outlet side both in communication with a flow conduit in a lateral face of the outer side flat plate-like support; at least one intermediate flat plate-like support includes flow conduits in both faces thereof, said plurality of flat plate-like supports and said plurality of flat membranes can be assembled with and disassembled from each other.