Title:
WATER TREATMENT METHOD AND DEVICE FOR BOILERS
Document Type and Number:
WIPO Patent Application WO/2021/140824
Kind Code:
A1
Abstract:
A water treatment method for boilers, in which raw water is treated by RO devices 1,2 and permeate water is used as boiler feed water, the water treatment method being characterized in that the RO devices are operated in such a manner that the concentration of monovalent cations in the boiler feed water can fall within a specified range. A water treatment device for boilers, which is provided with RO devices 1,2 for treating raw water, and in which permeate water through the RO devices is used as boiler feed water, and in which at least one of the amount of feed water, the amount of the permeate water and the amount of concentrated water in the RO device 1 is controlled in such a manner that the concentration of monovalent cations in the boiler feed water can fall within a specified range.
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Inventors:
INATOMI YUYA (JP)
IKEDA HIROYUKI (JP)
IKEDA HIROYUKI (JP)
Application Number:
PCT/JP2020/046031
Publication Date:
July 15, 2021
Filing Date:
December 10, 2020
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01D19/00; B01D61/12; B01D61/58; C02F1/44
Foreign References:
| JP2002136994A | 2002-05-14 | |||
| JP2017012991A | 2017-01-19 | |||
| JP2018012069A | 2018-01-25 | |||
| JP2008029965A | 2008-02-14 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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