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JPS6475007A - Method for operating clarifier - Google Patents

Method for operating clarifier

Info

Publication number
JPS6475007A
JPS6475007A JP23145487A JP23145487A JPS6475007A JP S6475007 A JPS6475007 A JP S6475007A JP 23145487 A JP23145487 A JP 23145487A JP 23145487 A JP23145487 A JP 23145487A JP S6475007 A JPS6475007 A JP S6475007A
Authority
JP
Japan
Prior art keywords
sludge
levels
clarifier
quality
carry
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
JP23145487A
Other languages
Japanese (ja)
Inventor
Toshiaki Ikenaga
Shoji Hara
Yukihiro Takano
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP23145487A priority Critical patent/JPS6475007A/en
Publication of JPS6475007A publication Critical patent/JPS6475007A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve a quality of a treated water by keeping a level of boundary between a supernatant water and a sludge in a clarifier not higher than a position at which a carry-out of sludge is preventable. CONSTITUTION:Sludge zone levels 43, 44 are detected by ultrasonic sludge zone detectors 25, 32 arranged in clarifiers 20, 27, the detected positions are sent to a controller 47 and discharge quantities of precipitated sludges 39, 40 are controlled by driving or stopping sludge discharge pumps 34, 36 and a standby sludge discharge pump 35 so as to keep sludge zone levels 43, 44 not higher than the levels at which the precipitated sludges 39, 40 being to be carried over. The carry-overs of the precipitated sludges 39, 40 are prevented and a quality of the treated water is always kept well as a result.
JP23145487A 1987-09-16 1987-09-16 Method for operating clarifier Pending JPS6475007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23145487A JPS6475007A (en) 1987-09-16 1987-09-16 Method for operating clarifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23145487A JPS6475007A (en) 1987-09-16 1987-09-16 Method for operating clarifier

Publications (1)

Publication Number Publication Date
JPS6475007A true JPS6475007A (en) 1989-03-20

Family

ID=16923770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23145487A Pending JPS6475007A (en) 1987-09-16 1987-09-16 Method for operating clarifier

Country Status (1)

Country Link
JP (1) JPS6475007A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020517802A (en) * 2017-04-28 2020-06-18 レコンドイル・スウェーデン・アクチエボラグＲｅｃｏｎｄｏｉｌ Ｓｗｅｄｅｎ ＡＢ Oil purification
JP2020520300A (en) * 2017-04-28 2020-07-09 レコンドイル・スウェーデン・アクチエボラグＲｅｃｏｎｄｏｉｌ Ｓｗｅｄｅｎ ＡＢ Oil purification

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150611A (en) * 1984-08-20 1986-03-12 Yaskawa Electric Mfg Co Ltd Operation of gravitational concentration tank
JPS61263611A (en) * 1985-05-16 1986-11-21 Ebara Res Co Ltd Method for operating and controlling slurry circulation flocculating sedimentation apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150611A (en) * 1984-08-20 1986-03-12 Yaskawa Electric Mfg Co Ltd Operation of gravitational concentration tank
JPS61263611A (en) * 1985-05-16 1986-11-21 Ebara Res Co Ltd Method for operating and controlling slurry circulation flocculating sedimentation apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020517802A (en) * 2017-04-28 2020-06-18 レコンドイル・スウェーデン・アクチエボラグＲｅｃｏｎｄｏｉｌ Ｓｗｅｄｅｎ ＡＢ Oil purification
JP2020520300A (en) * 2017-04-28 2020-07-09 レコンドイル・スウェーデン・アクチエボラグＲｅｃｏｎｄｏｉｌ Ｓｗｅｄｅｎ ＡＢ Oil purification
US11458420B2 (en) 2017-04-28 2022-10-04 Recondoil Sweden Ab Purification of oil
US11752452B2 (en) 2017-04-28 2023-09-12 Recondoil Sweden Ab Purification of oil

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