Title:
WATER DISCHARGE METHOD, WATER TREATMENT METHOD, RESIDUAL CHLORINE REDUCTION METHOD, AND WATER TREATMENT FACILITY
Document Type and Number:
WIPO Patent Application WO/2022/249488
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce the concentration of residual chlorine in water discharged into a natural water area such as a sea. In the present invention, water from a natural water area is taken into a water path 25 through a water intake port 21, and the water taken into the water path 25 is discharged to the natural water area through a water discharge port 24. A chlorine-based chemical agent is added to the water at a first prescribed position within the water path 25. Fine bubbles of gaseous hydrogen, or a hydrogen-containing liquid that includes the fine bubbles, is added to the water in the water path 25 at a second prescribed position that is closer to the water-discharge-port 24 side than is the first prescribed position.
Inventors:
YOSHIZAKI TSUKASA (JP)
UCHIYAMA ICHIRO (JP)
TANIGUCHI NAOHIKO (JP)
UCHIYAMA ICHIRO (JP)
TANIGUCHI NAOHIKO (JP)
Application Number:
PCT/JP2021/020548
Publication Date:
December 01, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
CHUGOKU ELECTRIC POWER (JP)
International Classes:
B01D61/10; C02F1/461; C02F1/50; C02F1/66; C02F1/70
Domestic Patent References:
| WO2019031430A1 | 2019-02-14 | |||
| WO2016121063A1 | 2016-08-04 |
Foreign References:
| JP2011528982A | 2011-12-01 | |||
| JP2001145890A | 2001-05-29 | |||
| JP6554244B1 | 2019-07-31 | |||
| JP2006238769A | 2006-09-14 | |||
| JP2004254574A | 2004-09-16 | |||
| JPH1137666A | 1999-02-12 |
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
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