Title:
WATER CIRCULATION/PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/175806
Kind Code:
A1
Abstract:
A water circulation/purification system is provided in which water being circulated can be more efficiently utilized. The water circulation/purification system S comprises a hand-washing shower 12, a first purification device 10, a first tank 11, a toilet 22, a second purification device 20, and a control unit 50. The hand-washing shower 12 utilizes clean water and discharges gray water. The first purification device 10 purifies the gray water from the hand-washing shower 12 to give clean water. The first tank 11 stores the clean water which has been purified by the first purification device 10 and is for use in the hand-washing shower 12. The toilet 22 utilizes the gray water and discharges sewage water. The second purification device 20 purifies the sewage water from the toilet 22 to give gray water for use in the toilet 22. The control unit 50 performs control so that when the amount of the clean water stored in the first tank 11 is less than a given amount, the first purification device 10 purifies the gray water which has been purified by the second purification device 20.
Inventors:
KANAO YOSHINORI (JP)
Application Number:
PCT/JP2022/012082
Publication Date:
September 21, 2023
Filing Date:
March 16, 2022
Export Citation:
Assignee:
CHUGOKU ELECTRIC POWER (JP)
International Classes:
C02F1/00; E03B1/00; E03B3/03; C02F1/28; C02F1/52; C02F1/74; C02F3/06
Foreign References:
| JP2003211174A | 2003-07-29 | |||
| JPH09296494A | 1997-11-18 | |||
| JPS5025042A | 1975-03-17 | |||
| JPH10337557A | 1998-12-22 | |||
| JPH11114551A | 1999-04-27 | |||
| JPH1054067A | 1998-02-24 | |||
| JPH05324601A | 1993-12-07 | |||
| JP2015107465A | 2015-06-11 | |||
| JPH08229590A | 1996-09-10 | |||
| US20140262982A1 | 2014-09-18 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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