Title:
MEMBRANE TREATING DEVICE
Document Type and Number:
Japanese Patent JP3137831
Kind Code:
B2
Abstract:
PURPOSE: To provide a membrane treating device capable of operating for a long period almost unrequiring the replenishment of chemicals such as acid and alkali and besides having high water utilization factor.
CONSTITUTION: Supply water 21 is treated by a first reverse osmosis equipment 20 to obtain permeated water 22 and also concentrated water 23 is treated by a reverse osmosis equipment 30 using a loose reverse osmosis membrane, and then the obtained permeated water 32 is electrolyzed by an electrolysis device 40. Thus an acidic liquid 41 and an alkaline liquid 42 are obtained and these are used as chemicals required for the operation and maintenance.
Inventors:
Makio Tamura
Application Number:
JP9499394A
Publication Date:
February 26, 2001
Filing Date:
May 09, 1994
Export Citation:
Assignee:
Organo Co., Ltd.
International Classes:
B01D61/08; B01D61/58; C02F1/44; C02F1/46; C02F1/469; C02F1/461; (IPC1-7): C02F1/44; B01D61/08; B01D61/58; C02F1/46; C02F1/469
Domestic Patent References:
| JP6134459A |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)