JPS5458944A - Washing of film for treating waste washing water - Google Patents
Washing of film for treating waste washing waterInfo
- Publication number
- JPS5458944A JPS5458944A JP12439577A JP12439577A JPS5458944A JP S5458944 A JPS5458944 A JP S5458944A JP 12439577 A JP12439577 A JP 12439577A JP 12439577 A JP12439577 A JP 12439577A JP S5458944 A JPS5458944 A JP S5458944A
- Authority
- JP
- Japan
- Prior art keywords
- film
- washing
- water
- vessel
- wash
- 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.)
- Granted
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE: To minimize the amount of clean water for washing a semipermeable film, by pre-washing the film in wate washing water to be treated and then finish- washing the film in the clean water.
CONSTITUTION: The waste washing water is supplied from a collecting vessel 1 to a hollow semipermeable film unit 5 and treated by reverse osmosis. Concentrated water is supplied to a circulating vessel 8 and caused by a high-pressure circulating pump 9 to circulate and be concentrated to a desired degree. During the circulating treatment, a sponge ball unit 14 is operated to wash the film. After the concentration, the concentrated waste water is drained into a vessel 17. A pump 2 is operated with low pressure at first to pre-wash the semipermeable film in the treated waste washing water. Thereafter, another pump 18 is operated to finish-wash the film in the clean water from a vessel 19
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12439577A JPS602116B2 (en) | 1977-10-19 | 1977-10-19 | Laundry wastewater treatment membrane cleaning method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12439577A JPS602116B2 (en) | 1977-10-19 | 1977-10-19 | Laundry wastewater treatment membrane cleaning method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5458944A true JPS5458944A (en) | 1979-05-12 |
JPS602116B2 JPS602116B2 (en) | 1985-01-19 |
Family
ID=14884357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12439577A Expired JPS602116B2 (en) | 1977-10-19 | 1977-10-19 | Laundry wastewater treatment membrane cleaning method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS602116B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066402A (en) * | 1990-08-31 | 1991-11-19 | Lyonnaise Des Eaux-Dumez | Method of changing operating modes in automatic water filtering apparatus using tubular membranes |
JPH11253763A (en) * | 1999-01-18 | 1999-09-21 | Mitsubishi Rayon Co Ltd | Washing method for hollow fiber membrane module |
-
1977
- 1977-10-19 JP JP12439577A patent/JPS602116B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066402A (en) * | 1990-08-31 | 1991-11-19 | Lyonnaise Des Eaux-Dumez | Method of changing operating modes in automatic water filtering apparatus using tubular membranes |
JPH11253763A (en) * | 1999-01-18 | 1999-09-21 | Mitsubishi Rayon Co Ltd | Washing method for hollow fiber membrane module |
Also Published As
Publication number | Publication date |
---|---|
JPS602116B2 (en) | 1985-01-19 |
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