Title:
WATER QUALITY MANAGEMENT SYSTEM AND METHOD FOR OPERATING WATER QUALITY MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/051664
Kind Code:
A1
Abstract:
A water quality management system 10 provided with: a regenerating ion exchange device 1; a water quality-measuring device 2 with an ion concentration meter 22; a first discharge pipe 3 through which treated water W1 discharged from the regenerating ion exchange device 1 flows; and a second discharge pipe 4 that branches from the first discharge pipe 3 via an automatic valve 5 and is for supplying treated water W1 to the water quality-measuring device 2. With said water quality management system, it is possible to stably reduce the concentrations of sodium ions (Na+) and chloride ions (Cl-) in the treated water discharged from the regenerating ion exchange device used in a primary pure water system of an ultrapure water-producing apparatus and it is possible to thereby limit short term fluctuations in sodium ion (Na+) concentration and chloride ion (Cl-) concentration in the treated water discharged from a non-regenerating ion exchange device used in a subsequent subsystem.
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Inventors:
YOKOI IKUNORI (JP)
Application Number:
PCT/JP2017/028178
Publication Date:
March 22, 2018
Filing Date:
August 03, 2017
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F1/42; B01J39/05; B01J39/07; B01J39/20; B01J41/05; B01J41/07; B01J41/14; B01J47/026; B01J47/04; B01J49/06; B01J49/07; B01J49/08; B01J49/09; B01J49/53; B01J49/57; B01J49/60; B01J49/70; B01J49/85; G01N27/416
Foreign References:
| JPH1128462A | 1999-02-02 | |||
| JPS4813540U | 1973-02-15 | |||
| JPH09117679A | 1997-05-06 |
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
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