JPS555744A - Controlling method for interface of flocculator - Google Patents
Controlling method for interface of flocculatorInfo
- Publication number
- JPS555744A JPS555744A JP7907378A JP7907378A JPS555744A JP S555744 A JPS555744 A JP S555744A JP 7907378 A JP7907378 A JP 7907378A JP 7907378 A JP7907378 A JP 7907378A JP S555744 A JPS555744 A JP S555744A
- Authority
- JP
- Japan
- Prior art keywords
- interface
- pump
- turbidity
- turbidimeter
- flocculator
- 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
Abstract
PURPOSE: TO control automatically the interface of a flocculator to a predetermined range, by repeatedly operating a pump when the turbidity of the liq. exceeds a set value to draw off the flocculated material, without operating the pump for a predetermined time even if the turbidity exceeds the set value.
CONSTITUTION: As raw water is charged to a flocculator with a drawing off pump 11 for flocculated material stopped the interface 7 rises up gradually. In that case, since the sampled water is taken out of cleaned water portion 6, the turbidity detected by a turbidimeter 10 is so small that the control unit 12 is not operated. When the interface 7 rises up to the sampling position, sampling is made from the precipitate portion 5, and the turbidimeter detects intermittently a high turbidity. When the durbidimeter 10 detects the turbidity corresponding to that of the liq. in the precipitate portion 5, the control unit 12 operates immediately the pump 11 for drawing off the flocculated material according to the signal given by the turbidimeter 10. Hereby, the interface 7 falls gradually. After operating the pump 11, the control unit 12 is not actuated for a predetermined time by the signal given by the turbidimeter 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7907378A JPS555744A (en) | 1978-06-29 | 1978-06-29 | Controlling method for interface of flocculator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7907378A JPS555744A (en) | 1978-06-29 | 1978-06-29 | Controlling method for interface of flocculator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555744A true JPS555744A (en) | 1980-01-16 |
Family
ID=13679705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7907378A Pending JPS555744A (en) | 1978-06-29 | 1978-06-29 | Controlling method for interface of flocculator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555744A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263611A (en) * | 1985-05-16 | 1986-11-21 | Ebara Res Co Ltd | Method for operating and controlling slurry circulation flocculating sedimentation apparatus |
WO1999058456A1 (en) * | 1998-05-08 | 1999-11-18 | Organo Corporation | Coagulator |
-
1978
- 1978-06-29 JP JP7907378A patent/JPS555744A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263611A (en) * | 1985-05-16 | 1986-11-21 | Ebara Res Co Ltd | Method for operating and controlling slurry circulation flocculating sedimentation apparatus |
JPH0232922B2 (en) * | 1985-05-16 | 1990-07-24 | Ebara Sogo Kenkyusho Kk | |
WO1999058456A1 (en) * | 1998-05-08 | 1999-11-18 | Organo Corporation | Coagulator |
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