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Title:
FORWARD OSMOSIS TREATMENT METHOD AND FORWARD OSMOSIS TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/022218
Kind Code:
A1
Abstract:
A forward osmosis treatment method which includes a forward osmosis step for moving water contained in the feed solution to the draw solution, by causing a feed solution and a draw solution, which has a higher osmotic pressure than does the feed solution, to contact one another through a semipermeable membrane, wherein the physical pressure difference between the feed solution and the draw solution is adjusted during the forward osmosis step so as to decrease fluctuation in the permeate flow rate, which is the amount of water moving from the feed solution to the draw solution.

Inventors:
NAKAO TAKAHITO (JP)
HAN JOOMI (JP)
SAKURAI HIDEHIKO (JP)
Application Number:
PCT/JP2019/028498
Publication Date:
January 30, 2020
Filing Date:
July 19, 2019
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
B01D61/00; B01D63/02; C02F1/44
Domestic Patent References:
WO2017033999A12017-03-02
WO2011064252A12011-06-03
Foreign References:
KR20130140370A2013-12-24
JP2015188786A2015-11-02
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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