JPS6490087A - Treatment of water with reverse osmotic membrane device - Google Patents
Treatment of water with reverse osmotic membrane deviceInfo
- Publication number
- JPS6490087A JPS6490087A JP24439787A JP24439787A JPS6490087A JP S6490087 A JPS6490087 A JP S6490087A JP 24439787 A JP24439787 A JP 24439787A JP 24439787 A JP24439787 A JP 24439787A JP S6490087 A JPS6490087 A JP S6490087A
- Authority
- JP
- Japan
- Prior art keywords
- water
- stage
- permeated water
- osmotic membrane
- membrane device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE:To improve purity of permeated water by carrying out a stage for obtg. primary permeated water during suspension of operation at night and carrying out a stage for obtg. secondary permeated water during operation in the day-time using a same reverse osmotic membrane device. CONSTITUTION:A stage for obtg. primary permeated water is only carried out utilizing suspending time of operation of a factory at night, and necessary amt. of the primary water for the operation during day-time is stored previously in a storage tank. The stored primary water is treated again during operation in the day-time with a reverse osmotic membrane device which has been used in an afore-mentioned stage, to obtain secondary permeated water. The secondary permeated water is used for the production of extremely pure water or directly for several kinds of process water. Thus, secondary permeated water having same water quality as obtd. by a two stage treating device is obtd. by a one-stage reverse osmotic membrane device, so the installation cost is reduced as compared to that for the two stage treating device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24439787A JPS6490087A (en) | 1987-09-30 | 1987-09-30 | Treatment of water with reverse osmotic membrane device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24439787A JPS6490087A (en) | 1987-09-30 | 1987-09-30 | Treatment of water with reverse osmotic membrane device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6490087A true JPS6490087A (en) | 1989-04-05 |
Family
ID=17118063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24439787A Pending JPS6490087A (en) | 1987-09-30 | 1987-09-30 | Treatment of water with reverse osmotic membrane device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6490087A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061695A1 (en) * | 2012-10-18 | 2014-04-24 | 東レ株式会社 | Fresh water generation method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112010A (en) * | 1981-12-24 | 1983-07-04 | Asahi Chem Ind Co Ltd | Multistage ultrafiltration method |
-
1987
- 1987-09-30 JP JP24439787A patent/JPS6490087A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112010A (en) * | 1981-12-24 | 1983-07-04 | Asahi Chem Ind Co Ltd | Multistage ultrafiltration method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061695A1 (en) * | 2012-10-18 | 2014-04-24 | 東レ株式会社 | Fresh water generation method |
JPWO2014061695A1 (en) * | 2012-10-18 | 2016-09-05 | 東レ株式会社 | Fresh water generation method |
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