CONCENTRATION DEVICE

WIPO Patent Application WO/2022/181541

A1

This concentration device is provided with a membrane module having a first flow path and a second flow path that are separated by a semipermeable membrane. The membrane module comprises a U-shaped tube inside of which the semipermeable membrane is disposed, a first flow path inlet connection part and first flow path outlet connection part, and a second flow path inlet connection part and second flow path outlet connection part. The concentration device comprises an introducing means for introducing a subject solution at a prescribed pressure to the first flow path from the first flow path inlet connection part, using the semipermeable membrane to separate the subject solution into a concentrate and a permeate, causing the permeate to permeate through the second flow path and causing the concentrate to flow out from the first flow path outlet connection part, introducing the subject solution at a lower pressure than the prescribed pressure to the second flow path from the second flow path inlet connection part, and causing a diluted solution, which is obtained by dilution with confluence with the permeate, to flow out from the second flow path outlet connection part.

KOHNO DAIKI (JP)
ABE YOJI (JP)
NAKAO TAKAHITO (JP)
GODA SHOHEI (JP)

PCT/JP2022/006934

September 01, 2022

February 21, 2022

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TOYO BOSEKI (JP)

B01D61/00; B01D61/02; B01D61/14; B01D63/02; C02F1/44

WO2020027056A1	2020-02-06
WO2020085426A1	2020-04-30

JP2018069198A	2018-05-10
JP2018065114A	2018-04-26
JPH0866616A	1996-03-12
JPS59138402U	1984-09-14

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