Title:
金属成分含有水の浄化処理方法及び浄化処理装置
Document Type and Number:
Japanese Patent JP5564174
Kind Code:
B2
Abstract:
A method of purifying water containing a metallic ingredient is provided which can reduce the burden to be imposed on a treatment of the concentrated water yielded by reverse osmosis membrane separation. The method of purifying water containing a metallic ingredient includes a reverse osmosis membrane separation step in which the metallic-ingredient-containing water, which contains a metallic ingredient dissolved therein, is separated into purified water, which is the filtrate, and concentrated water by reverse osmosis membrane separation. The method is characterized by further including: an electrolysis step in which the concentrated water is electrolyzed to obtain alkaline water on the cathode side; and a precipitate removal step in which the metallic ingredient which has precipitated due to the alkalinity from the alkaline water obtained in the electrolysis step is removed.
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Inventors:
Susumu Hasegawa
Application Number:
JP2008318350A
Publication Date:
July 30, 2014
Filing Date:
December 15, 2008
Export Citation:
Assignee:
Shinko Environmental Solution Co., Ltd.
International Classes:
C02F1/44; B01D61/02; B01D61/14; B01D61/58; B01D65/02; C02F1/46
Domestic Patent References:
| JP2004358316A | ||||
| JP9323029A | ||||
| JP2005211780A | ||||
| JP2009195808A | ||||
| JP2001335660A | ||||
| JP2006272031A | ||||
| JP2008100174A |
Attorney, Agent or Firm:
Noboru Fujimoto