HOLLOW FIBER SEMIPERMEABLE MEMBRANE, METHOD FOR MANUFACTURING SAME, MODULE, AND WATER TREATMENT METHOD

WIPO Patent Application WO/2013/118859

A1

[Problem] To provide a hollow fiber semipermeable membrane which achieves a high level of water permeability and rejection performance in order to treat using a small membrane surface area, for water treatment which uses a concentration difference from a highly concentrated liquid mixture having high osmotic pressure. [Solution] A hollow fiber semipermeable membrane comprising cellulose acetate, said membrane characterized by: the water permeability flowing from the inner side of the hollow fiber semipermeable membrane toward the outer side, between an aqueous solution with a sodium chloride concentration of 35,000 mg/L at 25°C and freshwater with 0 g/L of OMPa at 25°C, being 60-180 L/m2/day; the outer diameter of the hollow fiber semipermeable membrane being 100-350µm; the inner diameter being 50-250µm; and the hollow ratio being 24-51%.

JP6677649	A microporous article having a three-dimensional porous network of acid-sintered interconnected silica nanoparticles and a method for producing the same.
JP2019018178	SEPARATION MEMBRANE

SHIMIZU MICHIKO (JP)
YAGI TOSHIYUKI (JP)
TOKIMI SHINOBU (JP)

PCT/JP2013/053014

August 15, 2013

February 08, 2013

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TOYO BOSEKI (JP)

B01D71/16; B01D63/02; B01D69/08; C02F1/44; D01F2/28

WO2010144057A1

2010-12-16

JPS5936715A	1984-02-29
JPS5942008A	1984-03-08
US20060226067A1	2006-10-12
JP2000334275A	2000-12-05
JPS5936715A	1984-02-29
JPH10337448A	1998-12-22
JPH0919630A	1997-01-21
JP4412486B2	2010-02-10
JP4277147B2	2009-06-10
JP3591618B2	2004-11-24
JP3008886B2	2000-02-14

See also references of EP 2813280A4

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