JPS6456197A - Control device for activated sludge treatment system - Google Patents

Control device for activated sludge treatment system

Info

Publication number
JPS6456197A
JPS6456197A JP62214064A JP21406487A JPS6456197A JP S6456197 A JPS6456197 A JP S6456197A JP 62214064 A JP62214064 A JP 62214064A JP 21406487 A JP21406487 A JP 21406487A JP S6456197 A JPS6456197 A JP S6456197A
Authority
JP
Japan
Prior art keywords
srt
nitrification rate
treatment system
water temp
set value
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
JP62214064A
Other languages
Japanese (ja)
Inventor
Takao Sekine
Akira Matsunaga
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP62214064A priority Critical patent/JPS6456197A/en
Publication of JPS6456197A publication Critical patent/JPS6456197A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

PURPOSE:To control treated water to specified quality by recognizing the relation between the average stagnation time of the sludge in an activated sludge treatment system, nitrification rate and water temp. and setting the average stagnation time of the sludge conforming to the target value of the nitrification rate and water temp. CONSTITUTION:The characteristic curves indicating the relations between the average stagnation time (SRT) in the activated sludge treatment system 5 and the nitrification rate are stored for each of the average water temps. in a memory part 2. A nitrification rate control part 1 determines SRT in accordance with the characteristic curve group in the memory part 2 and outputs the same when the set value of the nitrification rate and the water temp. are applied thereto. An SRT control part 4 determines the amt. of the excess sludge to be discharged from the inside of the activated sludge treatment system 5 in a manner as to maintain the SRT at the set value and controls a discharge pump. The water temp. in the aeration tank in the treatment system 5 is detected at all times by a water temp. gage 3 and the nitrification rate control part 1 selects the characteristic curve corresponding to this water temp. from the characteristic curve group in the memory part 2 and determines the set value of the SRT in accordance with this curve and the target value of the nitrification rate. The amt. of the excess sludge is so controlled by the SRT control part 4 that the SRT attains the set value.
JP62214064A 1987-08-27 1987-08-27 Control device for activated sludge treatment system Pending JPS6456197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62214064A JPS6456197A (en) 1987-08-27 1987-08-27 Control device for activated sludge treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62214064A JPS6456197A (en) 1987-08-27 1987-08-27 Control device for activated sludge treatment system

Publications (1)

Publication Number Publication Date
JPS6456197A true JPS6456197A (en) 1989-03-03

Family

ID=16649658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62214064A Pending JPS6456197A (en) 1987-08-27 1987-08-27 Control device for activated sludge treatment system

Country Status (1)

Country Link
JP (1) JPS6456197A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014061470A (en) * 2012-09-20 2014-04-10 Kobelco Eco-Solutions Co Ltd Treatment method and treatment apparatus of to-be-treated water
JP2014061469A (en) * 2012-09-20 2014-04-10 Kobelco Eco-Solutions Co Ltd Treatment method and treatment apparatus of to-be-treated water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799397A (en) * 1980-12-12 1982-06-21 Daido Steel Co Ltd Purification of water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799397A (en) * 1980-12-12 1982-06-21 Daido Steel Co Ltd Purification of water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014061470A (en) * 2012-09-20 2014-04-10 Kobelco Eco-Solutions Co Ltd Treatment method and treatment apparatus of to-be-treated water
JP2014061469A (en) * 2012-09-20 2014-04-10 Kobelco Eco-Solutions Co Ltd Treatment method and treatment apparatus of to-be-treated water

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