JPS555744A - Controlling method for interface of flocculator - Google Patents

Controlling method for interface of flocculator

Info

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
Application number
JP7907378A
Other languages
Japanese (ja)
Inventor
Tetsuya Yamanaka
Tatsuya Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP7907378A priority Critical patent/JPS555744A/en
Publication of JPS555744A publication Critical patent/JPS555744A/en
Pending legal-status Critical Current

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
JP7907378A 1978-06-29 1978-06-29 Controlling method for interface of flocculator Pending JPS555744A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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