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Title:
FILTER MEMBRANE, FILTER UNIT, FILTER SYSTEM, AND FILTRATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/046250
Kind Code:
A1
Abstract:
Provided is a filter membrane in which nonwoven fabric formed from synthetic fibers having hydrophilicity is used as a filter membrane that can be used in a treatment system for seawater, river water and the like, has a large filtration flow speed, has sufficient recovery of filtration flow speed with backwashing and chemical washing, and has a long life, specifically, a filter membrane manufactured using a nonwoven fabric formed from fibers given hydrophilicity using a raw material having a hydrophilic functional group on hydrophobic fibers by a method such as applying fibers to which a hydrophilic resin has been applied on the surface of hydrophobic resin fibers or copolymerization of hydrophilic components. Further provided are a filter unit and filtration device using this filter membrane as well as a filtration method for filtering seawater and/or freshwater using this filtration device.

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Inventors:
UENO SHINYA (JP)
Application Number:
PCT/JP2014/075291
Publication Date:
April 02, 2015
Filing Date:
September 24, 2014
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
B01D71/48; B01D39/16; D06M15/27; D06M15/507; D06M101/32
Domestic Patent References:
WO2012029710A12012-03-08
Foreign References:
JP2013534464A2013-09-05
JPH07726A1995-01-06
JP2007203142A2007-08-16
JP2012183237A2012-09-27
JP2004208932A2004-07-29
JP2010018927A2010-01-28
JPH06158494A1994-06-07
JPH0910564A1997-01-14
JP3108727U2005-04-28
JP2010119999A2010-06-03
JP2011251284A2011-12-15
JP2012196618A2012-10-18
JP2012245428A2012-12-13
JP4835785B22011-12-14
Other References:
See also references of EP 3050613A4
Attorney, Agent or Firm:
JODAI, Tetsuji et al. (JP)
Tetsuji Ueshiro (JP)
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