JPS5547190A - Sludge extraction flow rate controller in active sludge treatment process - Google Patents

Sludge extraction flow rate controller in active sludge treatment process

Info

Publication number
JPS5547190A
JPS5547190A JP12099778A JP12099778A JPS5547190A JP S5547190 A JPS5547190 A JP S5547190A JP 12099778 A JP12099778 A JP 12099778A JP 12099778 A JP12099778 A JP 12099778A JP S5547190 A JPS5547190 A JP S5547190A
Authority
JP
Japan
Prior art keywords
sludge
calculator
concentration
flow rate
provides
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.)
Granted
Application number
JP12099778A
Other languages
Japanese (ja)
Other versions
JPS6129793B2 (en
Inventor
Kazuo Maeda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12099778A priority Critical patent/JPS5547190A/en
Publication of JPS5547190A publication Critical patent/JPS5547190A/en
Publication of JPS6129793B2 publication Critical patent/JPS6129793B2/ja
Granted 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

Landscapes

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: Outputs from MLSS concentration meters in an aeration tank are each calculated to thereby maintain the mean time of active aludge stay and the total quantity of sludge in the aeration tank and fianl sedimentation basin.
CONSTITUTION: The 4th calculator 4 provides a quantity of newly formed sludge by operating each input from the 1st calculator 9 on sludge quantity, from the flow meter 14 on flow rate of incoming sewage, from the concentration meter 15 on concentration of organic material, and from the concentation meter 16 on concentration of SS. The 5th calculator 18 provides the average stay time from the information on the quantity of sludge formed during several prior points to the present time, and on the quantity of surplus sludge to be extracted. This value of average stay time, the total sludge quantity, a load for quantity of sludge to be extracted, and signal from the target setter 10 are operated by the 6th calculator 19, which provides instruction values for the surplus sludge to be extracted in order to maintain constant values of average sludge stay time and the total sludge quantity during the following several steps. This instruction and the concentration of surplus sludge are operated by the 7th calculator 20, which then provides thr flow rate for extraction, and controls the flow rate adjuster 4 for extracting surplus sludge.
COPYRIGHT: (C)1980,JPO&Japio
JP12099778A 1978-09-29 1978-09-29 Sludge extraction flow rate controller in active sludge treatment process Granted JPS5547190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12099778A JPS5547190A (en) 1978-09-29 1978-09-29 Sludge extraction flow rate controller in active sludge treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12099778A JPS5547190A (en) 1978-09-29 1978-09-29 Sludge extraction flow rate controller in active sludge treatment process

Publications (2)

Publication Number Publication Date
JPS5547190A true JPS5547190A (en) 1980-04-03
JPS6129793B2 JPS6129793B2 (en) 1986-07-09

Family

ID=14800219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12099778A Granted JPS5547190A (en) 1978-09-29 1978-09-29 Sludge extraction flow rate controller in active sludge treatment process

Country Status (1)

Country Link
JP (1) JPS5547190A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147065A (en) * 1980-04-16 1981-11-14 Mitsubishi Electric Corp Estimation and monitor system of mlss concentration within aeration tank
JPS57102291A (en) * 1980-12-16 1982-06-25 Meidensha Electric Mfg Co Ltd Control method for amount of activated sludge
JPS57107293A (en) * 1980-12-26 1982-07-03 Meidensha Electric Mfg Co Ltd Method for controlling amount of activated sludge
JPS58156395A (en) * 1982-03-15 1983-09-17 Toshiba Corp Means for controlling amount of sludge in sewage disposal plant
JP2002011493A (en) * 2000-06-29 2002-01-15 Kurita Water Ind Ltd System for monitoring sludge quantity reducing effect
CN115465952A (en) * 2022-09-29 2022-12-13 光大环保技术研究院（深圳）有限公司 Method for controlling sludge discharge amount using sludge load, sewage treatment station, and computer-readable storage medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147065A (en) * 1980-04-16 1981-11-14 Mitsubishi Electric Corp Estimation and monitor system of mlss concentration within aeration tank
JPH0229987B2 (en) * 1980-04-16 1990-07-03 Mitsubishi Electric Corp
JPS57102291A (en) * 1980-12-16 1982-06-25 Meidensha Electric Mfg Co Ltd Control method for amount of activated sludge
JPS57107293A (en) * 1980-12-26 1982-07-03 Meidensha Electric Mfg Co Ltd Method for controlling amount of activated sludge
JPS58156395A (en) * 1982-03-15 1983-09-17 Toshiba Corp Means for controlling amount of sludge in sewage disposal plant
JP2002011493A (en) * 2000-06-29 2002-01-15 Kurita Water Ind Ltd System for monitoring sludge quantity reducing effect
JP4596096B2 (en) * 2000-06-29 2010-12-08 栗田工業株式会社 Sludge reduction monitoring system
CN115465952A (en) * 2022-09-29 2022-12-13 光大环保技术研究院（深圳）有限公司 Method for controlling sludge discharge amount using sludge load, sewage treatment station, and computer-readable storage medium
CN115465952B (en) * 2022-09-29 2023-11-14 光大环保技术研究院（深圳）有限公司 Method for controlling sludge discharge amount by using sludge load, sewage treatment station and computer readable storage medium

Also Published As

Publication number Publication date
JPS6129793B2 (en) 1986-07-09

Similar Documents

Publication Publication Date Title
Pitman Management of biological nutrient removal plant sludges—change the paradigms?
JPS5547190A (en) Sludge extraction flow rate controller in active sludge treatment process
JPS5547189A (en) Total sludge quantity controller in active sludge treatment process
JPS5373863A (en) Method of treating digestion separation liquid
JPS56161892A (en) Unstationary active sludge process
JPS5342451A (en) Process for purifying organic waste water
JPS5640490A (en) Controlling method of drawing amount of sludge from concentration tank
JPS53114260A (en) Method for treating sewage
JPS5556895A (en) Predictive controlling method for concentration of mixed liquor suspended solid in active sludge method
JPS56166997A (en) Control method for sludge-digesting vessel
JPS565187A (en) Microorganism concentration controller for activated sludge in aeration tank
JPS51125967A (en) Control method of sludge quantity in sewage plant
JPS5475863A (en) Controlling of sludge in active sludge plant
JPS5778994A (en) Operation of lid covered type high concn. oxygen aeration apparatus
JPS5791793A (en) Optimum operation of sewage treating apparatus due to activated sludge process
JPS5771692A (en) Method for treatment of fuorine-containing waste water
JPS55129196A (en) Monitoring method for sludge amount in settling pool of sewage treatment plant
JPS55102495A (en) Excess sluge drawing control in sewage treatment plant
JPS5581798A (en) Sludge drawing controller for sludge concentration tank
JPS55121890A (en) Activated sludge water treating apparatus
JPS5667589A (en) Method for removing cod in exhaust water containing sulfur oxide
JPH07290086A (en) Dephosphorization method in oxidation ditch
JPS5338154A (en) Method of treating sludge from purification tank
JPS53135171A (en) Method of treating waste water
JPS5419554A (en) System for controlling amount of superfluous sludge