JPS54108066A - Washing method of upward flow sande filter device - Google Patents
Washing method of upward flow sande filter deviceInfo
- Publication number
- JPS54108066A JPS54108066A JP1558078A JP1558078A JPS54108066A JP S54108066 A JPS54108066 A JP S54108066A JP 1558078 A JP1558078 A JP 1558078A JP 1558078 A JP1558078 A JP 1558078A JP S54108066 A JPS54108066 A JP S54108066A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- bottom portion
- filter
- air
- filter sand
- 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 make complete washing through the process consisting removing most of suspensoid in air washing process, facilitating the development of filter sand by destroying said suspensoid by means of the air supplied to the bottom portion of said filter sand layer in subsequent water washing process and continuing water washing even after stopping air supply.
CONSTITUTION: In an upward flow sand filter system made by providing a sand filter layer 4 over a gravel layer 3, most of the suspensoid in gravel layer 3 bed by feeding supply air C to the bottom portion of said gravel layer 3 with the water level in a thak 1 is set in the vicintity of the surface of said filter sand layer 4. Supply air c is fed to the bottom portion of said filter sand layer 4 through a pipe 13 while washing water d is fed from the bottom portion of a tank 1 through a pipe 15 and asid supply water d is fed continuously after stopping said supply air c of said bottom portion of said filter sand layer 4, so that the portion on which the largest port of said suspenoid sticks is easily destroyed for making efficient development of said filter sand layer 4.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1558078A JPS54108066A (en) | 1978-02-13 | 1978-02-13 | Washing method of upward flow sande filter device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1558078A JPS54108066A (en) | 1978-02-13 | 1978-02-13 | Washing method of upward flow sande filter device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108066A true JPS54108066A (en) | 1979-08-24 |
Family
ID=11892661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1558078A Pending JPS54108066A (en) | 1978-02-13 | 1978-02-13 | Washing method of upward flow sande filter device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108066A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014151278A (en) * | 2013-02-08 | 2014-08-25 | Mitsubishi Heavy Ind Ltd | Method for cleaning sand filter apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50139458A (en) * | 1974-04-25 | 1975-11-07 |
-
1978
- 1978-02-13 JP JP1558078A patent/JPS54108066A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50139458A (en) * | 1974-04-25 | 1975-11-07 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014151278A (en) * | 2013-02-08 | 2014-08-25 | Mitsubishi Heavy Ind Ltd | Method for cleaning sand filter apparatus |
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