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Title:
WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/074147
Kind Code:
A1
Abstract:
Provided is a water treatment system that has improved thermal efficiency of the entire system for a variety of raw water temperatures. The water treatment system 101 has: a reverse osmosis membrane device 14; an electric regeneration-type deionizing device 18 that is positioned downstream from the reverse osmosis membrane device 14; a first heat exchanger 31 that is positioned upstream from the reverse osmosis membrane device 14 and adjusts the temperature of water supplied to the reverse osmosis membrane device 14 in accordance with the temperature of the raw water supplied to the water treatment system 101; and a second heat exchanger 32 that is positioned between the reverse osmosis membrane device 14 and the electric regeneration-type deionizing device 18 and cools the water supplied to the electric regeneration-type deionizing device 18. Either the first heat exchanger 31 or the second heat exchanger 32 is an internal heat exchanger that exchanges heat inside the water treatment system and the other is an external heat exchanger that exchanges heat with outside the water treatment system.

Inventors:
SASAKI KEISUKE (JP)
NAKAMURA YUKI (JP)
TERASHI RYOSUKE (JP)
SUDO FUMIO (JP)
Application Number:
PCT/JP2022/033856
Publication Date:
May 04, 2023
Filing Date:
September 09, 2022
Export Citation:
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Assignee:
ORGANO CORP (JP)
International Classes:
B01D61/10; B01D61/12; B01D61/52; B01D61/58; C02F1/44; C02F1/469
Foreign References:
JP2021065843A2021-04-30
JP2020199436A2020-12-17
JP2013202581A2013-10-07
JP2013119060A2013-06-17
JP2014124481A2014-07-07
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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