Title:
WATER TREATMENT DEVICE AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2011/122175
Kind Code:
A1
Abstract:
Disclosed are a water treatment device and a water treatment method, both of which can prevent the clogging of a membrane using a chemical substance containing a chlorine component and can also prevent the increase in the amount of the chlorine-component-containing chemical component to be used. Specifically disclosed is a water treatment device which is equipped with a membrane unit comprising a membrane and is so adapted that water to be treated can be separated through the membrane in the membrane unit. The device is characterized by being so adapted as to conduct a first filtration step and a washing step or a second filtration step alternatively, wherein the first filtration step comprises separating residual-free-chlorine-containing water (i.e., water containing a residual free chlorine) to be treated that has the same or lower residual free chlorine concentration as or than a predetermined value through the membrane in the membrane unit, the washing step comprises immersing the membrane in the membrane unit in a wash solution having a higher residual free chlorine concentration than the predetermined value, and the second filtration step comprises separating residual-free-chlorine-containing water that has a higher residual free chlorine concentration than the predetermined value through the membrane in the membrane unit.
Inventors:
TANIDA, Katsuyoshi (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
谷田 克義 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
ONODA, Sousuke (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
小野田 草介 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
TAKATA, Kazutaka (4-78, Wakinohama-cho 1-chome, Chuo-ku, Kobe-sh, Hyogo 72, 〒6510072, JP)
谷田 克義 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
ONODA, Sousuke (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
小野田 草介 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
TAKATA, Kazutaka (4-78, Wakinohama-cho 1-chome, Chuo-ku, Kobe-sh, Hyogo 72, 〒6510072, JP)
Application Number:
JP2011/053813
Publication Date:
October 06, 2011
Filing Date:
February 22, 2011
Export Citation:
Assignee:
KOBELCO ECO-SOLUTIONS CO., LTD. (4-78, Wakinohama-cho 1-chome Chuo-ku, Kobe-sh, Hyogo 72, 〒6510072, JP)
株式会社神鋼環境ソリューション (〒72 兵庫県神戸市中央区脇浜町１丁目４番７８号 Hyogo, 〒6510072, JP)
TANIDA, Katsuyoshi (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
谷田 克義 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
ONODA, Sousuke (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
小野田 草介 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
株式会社神鋼環境ソリューション (〒72 兵庫県神戸市中央区脇浜町１丁目４番７８号 Hyogo, 〒6510072, JP)
TANIDA, Katsuyoshi (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
谷田 克義 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
ONODA, Sousuke (TECHNICAL RESEARCH CENTER, 1-4, Murotani 1-chome, Nishi-ku, Kobe-sh, Hyogo 41, 〒6512241, JP)
小野田 草介 (〒41 兵庫県神戸市西区室谷１丁目１番４号 株式会社神鋼環境ソリューション 技術研究所内 Hyogo, 〒6512241, JP)
International Classes:
C02F1/44; B01D61/02; B01D61/14; B01D61/58; B01D63/10; B01D65/06; B01D71/16
Attorney, Agent or Firm:
FUJIMOTO, Noboru (Sakaisuji-Inabata Bldg. 2F, 15-14 Minamisemba 1-chome, Chuo-ku, Osaka-sh, Osaka 81, 〒5420081, JP)
Download PDF:
Claims:
Previous Patent: DIE
Next Patent: METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE, DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME
Next Patent: METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE, DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME