FLAT MEMBRANE CARTRIDGE FOR WASTE WATER PROCESSING

WIPO Patent Application WO/2015/064495

A1

[Problem] To provide a flat membrane cartridge with which it is possible to select a channel material and a buffer material that can reduce pressure loss and reduce suction pressure distribution on the surface of a separation membrane, and which can increase a waste water processing flow rate per unit membrane surface area using low power. [Solution] Provided is a flat membrane cartridge for waste water processing, in which, with respect to the front and back surfaces of a membrane support plate which is made of resin and which has a level difference on the front and back surfaces so that the edges are higher than the center, separation membranes are adhered to such front and back surfaces along the edges thereof so as to cover the center of the membrane support plate. The flat membrane cartridge is characterized by the following: between the center of the membrane support plate and the separation membrane, disposed are a channel material and a buffer material, in that order from the membrane support plate side; the channel material has openings of 0.5-3.2mm in the horizontal and vertical directions, a wire diameter of 0.4-1.0mm in the horizontal and vertical directions, a thickness of 0.6-2.0mm, and a porosity of 20-60%; and the buffer material has a basis weight of 10-110g/m2, and a thickness of 0.1-0.5mm.

SHIMADA NORIFUMI (JP)
MORITA JUNSUKE (JP)
KITAGAWA TOORU (JP)
HIGASHI MASAO (JP)

PCT/JP2014/078332

May 07, 2015

October 24, 2014

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TOYO BOSEKI (JP)

B01D63/08; B01D63/00; C02F1/44

WO2009004962A1

2009-01-08

JP2000312815A	2000-11-14
JP2001321766A	2001-11-20
JPH11244672A	1999-09-14
JP2003144869A	2003-05-20
JP2003135939A	2003-05-13
JP2010221218A	2010-10-07
JPH09299969A	1997-11-25
JP2003181227A	2003-07-02

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