JPS5658600A - Freezed and melted sludge tank - Google Patents
Freezed and melted sludge tankInfo
- Publication number
- JPS5658600A JPS5658600A JP13292479A JP13292479A JPS5658600A JP S5658600 A JPS5658600 A JP S5658600A JP 13292479 A JP13292479 A JP 13292479A JP 13292479 A JP13292479 A JP 13292479A JP S5658600 A JPS5658600 A JP S5658600A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- concn
- tank
- sensor
- pipe
- 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
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To enhance the dehydration efficiency of a dehydrator by setting a sludge sensor at a predetermined level of the supernatant liq. discharge pipe of a sludge tank to open the the pipe only when the detected sludge concn. is below a set value.
CONSTITUTION: In a couple of freezing and melting vessels 10, 12 freezing and melting are carried out alternately, and melted sludge and water are introduced into freezed and melted sludge tank 14 through ducts 16, 18. A sludge part settled in tank 14 is gathered in sludge pit 26 with sludge scraper 26 and fed to a dehydrator through duct 30 with sludge pump 28. On the other hand, the supernatant liq. is discharged through supernatant liq. discharge pipe 32. Sludge sensor 34 is placed near the opening of pipe 32 in tank 14. Sensor 34 detects the concn. of sludge and opens supernatant liq. drawing valve 38 only when the concn. is below a set sludge concn. Thus, the sludge concn. of the sludge part to be dehydrated is raised, resulting in efficient dehydration. The positions of the opening of pipe 32 and sensor 34 can be altered arbitrarily.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13292479A JPS5658600A (en) | 1979-10-17 | 1979-10-17 | Freezed and melted sludge tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13292479A JPS5658600A (en) | 1979-10-17 | 1979-10-17 | Freezed and melted sludge tank |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5658600A true JPS5658600A (en) | 1981-05-21 |
Family
ID=15092686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13292479A Pending JPS5658600A (en) | 1979-10-17 | 1979-10-17 | Freezed and melted sludge tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5658600A (en) |
-
1979
- 1979-10-17 JP JP13292479A patent/JPS5658600A/en active Pending
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