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Title:
DEIONIZATION MODULE AND ELECTRIC DEVICE FOR PRODUCING DEIONIZED WATER
Document Type and Number:
WIPO Patent Application WO/2010/104007
Kind Code:
A1
Abstract:
A deionization module obtained by filling an organic porous ion exchanger into the inner space formed between a cation-exchange membrane attached to one side of a frame so as to seal the side and an anion-exchange membrane attached to the other side so as to seal the side, the porous ion exchanger being a continuous macroporous structure which, in a water-wet state, has openings (mesopores) with an average diameter of 30-300 µm and which has an overall pore volume of 0.5-5 ml/g and a water-wet-state ion-exchange capacity of 0.4-5 mg-eq/ml. In an SEM image of a cut section of the continuous macroporous structure (dry state), the area of skeletal parts appearing in the section is 25-50% of the image region. An EDI equipped with the module is provided. In this EDI, since the ion exchanger has high strength, the pressure loss caused when water passes can be reduced and the quality of treated water is improved.

Inventors:
INOUE HIROSHI (JP)
YAMANAKA KOJI (JP)
Application Number:
PCT/JP2010/053653
Publication Date:
September 16, 2010
Filing Date:
March 05, 2010
Export Citation:
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Assignee:
ORGANO CORP (JP)
INOUE HIROSHI (JP)
YAMANAKA KOJI (JP)
International Classes:
B01D61/48; B01J39/04; B01J39/18; B01J41/04; B01J41/12; C02F1/469
Domestic Patent References:
WO2002083770A12002-10-24
WO2008016055A12008-02-07
Foreign References:
JP2003334560A2003-11-25
JP2009035668A2009-02-19
JP2009019187A2009-01-29
JP2006159064A2006-06-22
JP2003230886A2003-08-19
JP2008055388A2008-03-13
Attorney, Agent or Firm:
AKATSUKA, Kenji et al. (JP)
Kenji Akatsuka (JP)
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