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Title:
DESALTING METHOD
Document Type and Number:
Japanese Patent JP2001113274
Kind Code:
A
Abstract:

To provide a high degree water cleaning treatment method capable of reducing the arranging space of a nano-filter membrane module for pretreatment, in a process performing pretreatment for removing divalent ions by the nano-filter membrane module and subsequently performing desalting treatment.

A nano-filter membrane module using a highly water permeable hollow fiber membranes capable of removing divalent ions is used in pretreatment.


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Inventors:
KUMANO ATSUO
MATSUI YOICHI
BABA SHUNICHIRO
Application Number:
JP29251099A
Publication Date:
April 24, 2001
Filing Date:
October 14, 1999
Export Citation:
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Assignee:
TOYO BOSEKI
International Classes:
C02F1/44; B01D61/02; B01D61/14; B01D61/58; B01D63/02; B01D69/08; B01D71/56; B01D71/82; (IPC1-7): C02F1/44; B01D61/02; B01D63/02; B01D69/08; B01D71/56



 
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