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Title:
POROUS MEMBRANE FOR MEMBRANE DISTILLATION, AND METHOD FOR OPERATING MEMBRANE DISTILLATION MODULE
Document Type and Number:
WIPO Patent Application WO/2018/174279
Kind Code:
A1
Abstract:
A membrane distillation device, provided with a membrane distillation module including a plurality of hydrophobic porous hollow fiber membranes, and a condenser for condensing water vapor extracted from the module. The average pore diameter of the porous hollow fiber is 0.01-1 μm. The filling ratio of the porous hollow fiber of the membrane distillation module is 10-80%, and the pressure condition for the membrane distillation is equal to or greater than 1 kPa and equal to or less than the saturated vapor pressure of water at the temperature of the water being treated.

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JP2020195938COMPOSITE SEMIPERMEABLE MEMBRANE, COMPOSITE SEMIPERMEABLE MEMBRANE ELEMENT, AND WATER PURIFIER USING COMPOSITE SEMIPERMEABLE MEMBRANE ELEMENT
Inventors:
HASHIMOTO TOMOTAKA (JP)
ARAI HIROYUKI (JP)
NAGATA KAZUTO (JP)
KUBOTA NOBORU (JP)
TAKEZAWA HIROKI (JP)
OTOYO TAKEHIKO (JP)
Application Number:
PCT/JP2018/011892
Publication Date:
September 27, 2018
Filing Date:
March 23, 2018
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B01D69/02; B01D61/36; B01D65/02; B01D65/06; B01D69/08
Domestic Patent References:
WO2016006670A12016-01-14
WO2015080125A12015-06-04
WO2001053213A12001-07-26
WO2016006670A12016-01-14
WO2015080125A12015-06-04
Foreign References:
JPH05161832A1993-06-29
JPS55163028U1980-11-22
JPH01293104A1989-11-27
JP2016523698A2016-08-12
JP2010075808A2010-04-08
JPH06226066A1994-08-16
JP2016190220A2016-11-10
JP2016087545A2016-05-23
JPH0534907U1993-05-14
JPH038800U1991-01-28
JP2011218247A2011-11-04
JPH03215535A1991-09-20
JP2013185127A2013-09-19
Other References:
See also references of EP 3603777A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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