JPS5588810A - Method for filtering and washing in combination - Google Patents
Method for filtering and washing in combinationInfo
- Publication number
- JPS5588810A JPS5588810A JP16135078A JP16135078A JPS5588810A JP S5588810 A JPS5588810 A JP S5588810A JP 16135078 A JP16135078 A JP 16135078A JP 16135078 A JP16135078 A JP 16135078A JP S5588810 A JPS5588810 A JP S5588810A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- water
- valve
- washing
- flow rate
- 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
- Filtration Of Liquid (AREA)
Abstract
PURPOSE: To wash filter tanks alternately and to make the size of a treating water tank smaller, by treating a raw water, obtained by decomposition of sewage or waste water in a settling tank, in a filter tank, then by letting the water flow reversely to the other filter tank, in addn., by increasing the raw water feed flow rate to the back wash water flow rate.
CONSTITUTION: When raw water is filtered in a filter tank 5a, and a filter tank 5b is back washed, feed pumps 17 and 19 installed in a raw water tank 2 are operated simultaneously with valves 20 and 4a opened and a valve 4b and a discharge valve 12a closed. Hereby, raw water at a flow rate equal to that of the back washing is fed to the tank 5a to obtain treated water. When a valve 14 is closed, and a discharge valve 12b is opened, treating water at the back wash water flow rate is made to flow from the tank 5a to the tank 5b so as to wash it, and washing waste water is discharged through the valve 12b to a sedimentation pond. For conducting fore- washing, treated water is sprayed into the upper part of the tank 5b from a treated water tank 15 or treated water pipe 13 by means of a press. pump 21, with a valve 11b opened. In washing the tank 5a, the operation may be conducted with the above described codes a, b interchanged.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16135078A JPS5588810A (en) | 1978-12-27 | 1978-12-27 | Method for filtering and washing in combination |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16135078A JPS5588810A (en) | 1978-12-27 | 1978-12-27 | Method for filtering and washing in combination |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5588810A true JPS5588810A (en) | 1980-07-04 |
Family
ID=15733404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16135078A Pending JPS5588810A (en) | 1978-12-27 | 1978-12-27 | Method for filtering and washing in combination |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588810A (en) |
-
1978
- 1978-12-27 JP JP16135078A patent/JPS5588810A/en active Pending
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