Title:
被処理水中のホウ素除去方法、ホウ素除去システム、超純水製造システム及びホウ素濃度の測定方法
Document Type and Number:
Japanese Patent JP7454330
Kind Code:
B2
Abstract:
A method of removing boron from water to be treated includes subjecting the water to be treated to reverse osmosis membrane treatment, subjecting at least part of permeated water after the reverse osmosis membrane treatment to cation-removing treatment, and measuring a concentration of boron in the resulting permeated water after the cation-removing treatment, in which a measured value for the concentration of boron is used to regulate at least one of: (a) the recovery rate of water to be treated in the above reverse osmosis membrane treatment, (b) the temperature of the water to be treated, (c) the pH of the water to be treated, (d) the supply pressure of the water to be treated, which pressure is applied to the reverse osmosis membrane during the reverse osmosis membrane treatment, and (e) when the reverse osmosis membrane used for the reverse osmosis membrane treatment should be changed.
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Inventors:
Yuki Nakamura
Chika Tatemochi
Chika Tatemochi
Application Number:
JP2018117270A
Publication Date:
March 22, 2024
Filing Date:
June 20, 2018
Export Citation:
Assignee:
Organo Co., Ltd.
International Classes:
C02F1/44; B01D61/02; B01D61/12; B01D61/44; B01D61/58; B01J39/05; B01J39/18; B01J41/05; B01J41/12; B01J47/022; B01J47/04; B01J47/127; B01J49/53; C02F1/20; C02F1/42; C02F1/469
Domestic Patent References:
| JP11128921A | ||||
| JP8117744A | ||||
| JP2014100706A | ||||
| JP9290275A | ||||
| JP2005342587A | ||||
| JP201858018A | ||||
| JP2010216823A | ||||
| JP2013250278A | ||||
| JP2006167568A |
Attorney, Agent or Firm:
Patent Attorney Corporation Iida and Partners
Toshizo Iida
Shuichi Akabane
Toshizo Iida
Shuichi Akabane