JPS57156087A - Operating system for sewage treatment system by activated sludge method - Google Patents

Operating system for sewage treatment system by activated sludge method

Info

Publication number
JPS57156087A
JPS57156087A JP56041768A JP4176881A JPS57156087A JP S57156087 A JPS57156087 A JP S57156087A JP 56041768 A JP56041768 A JP 56041768A JP 4176881 A JP4176881 A JP 4176881A JP S57156087 A JPS57156087 A JP S57156087A
Authority
JP
Japan
Prior art keywords
flow rate
sludge
settling basin
flow rates
aeration tank
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
JP56041768A
Other languages
Japanese (ja)
Other versions
JPH0147238B2 (en
Inventor
Takashi Nakayama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56041768A priority Critical patent/JPS57156087A/en
Publication of JPS57156087A publication Critical patent/JPS57156087A/en
Publication of JPH0147238B2 publication Critical patent/JPH0147238B2/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: To operate a sewage treatment system efficiently by determining the flow rates of return sludge and excess sludge at which an aeration tank is operated at the smallest possible deviation values of MLSS concn. and return sludge from target values and operating said tank.
CONSTITUTION: Manipulated variables are the three flow rates; the flow rate of withdrawal from settling basin, the flow rate of return sludge and the flow rate of excess sludge. If the flow rate of withdrawal from settling basin and the flow rate of return sludge out of these tree flow rates are determined, the remaining one flow rate is determined. The flow rates are controlled by means of pumps 5, 7, and control valves 8, 9. To determine the flow rates, the sludge concns. of the respective parts are calculated, for which the mathematical models of an aeration tank 2 and a final settling basin 3 are used. Algorithm is constituted of the aeration tank model which calculates the MLSS concn. on the outlet side of the tank 2, and the settling basin model which calculates the MLSS concn. on the outlet side of the aeration tank, the flow rate of sewage and the flow rate of the sludge withdrawn from the settling basin.
COPYRIGHT: (C)1982,JPO&Japio
JP56041768A 1981-03-24 1981-03-24 Operating system for sewage treatment system by activated sludge method Granted JPS57156087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041768A JPS57156087A (en) 1981-03-24 1981-03-24 Operating system for sewage treatment system by activated sludge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041768A JPS57156087A (en) 1981-03-24 1981-03-24 Operating system for sewage treatment system by activated sludge method

Publications (2)

Publication Number Publication Date
JPS57156087A true JPS57156087A (en) 1982-09-27
JPH0147238B2 JPH0147238B2 (en) 1989-10-12

Family

ID=12617570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041768A Granted JPS57156087A (en) 1981-03-24 1981-03-24 Operating system for sewage treatment system by activated sludge method

Country Status (1)

Country Link
JP (1) JPS57156087A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1115413A2 (en) * 1998-09-28 2001-07-18 Aspen Technology, Inc. Robust steady-state target calculation for model predictive control
GB2364528A (en) * 2000-04-18 2002-01-30 Jeffrey Howard Constantine Sewage treatment apparatus
JP2009509756A (en) * 2005-10-06 2009-03-12 シーメンス・ウォーター・テクノロジーズ・コーポレーション Dynamic control of membrane bioreactor system
JP2017209642A (en) * 2016-05-26 2017-11-30 メタウォーター株式会社 Method of adjusting return sludge amount and excess sludge amount from final sedimentation place

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011230081A (en) * 2010-04-28 2011-11-17 Noritz Corp Water softening apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5196171A (en) * 1975-02-21 1976-08-23
JPS5196168A (en) * 1975-02-19 1976-08-23
JPS5343955A (en) * 1976-10-01 1978-04-20 Hitachi Ltd Control device for activated sludge water treatment works
JPS57117390A (en) * 1981-01-16 1982-07-21 Toshiba Corp Apparatus for controlling activated sludge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5196168A (en) * 1975-02-19 1976-08-23
JPS5196171A (en) * 1975-02-21 1976-08-23
JPS5343955A (en) * 1976-10-01 1978-04-20 Hitachi Ltd Control device for activated sludge water treatment works
JPS57117390A (en) * 1981-01-16 1982-07-21 Toshiba Corp Apparatus for controlling activated sludge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1115413A2 (en) * 1998-09-28 2001-07-18 Aspen Technology, Inc. Robust steady-state target calculation for model predictive control
GB2364528A (en) * 2000-04-18 2002-01-30 Jeffrey Howard Constantine Sewage treatment apparatus
GB2364528B (en) * 2000-04-18 2005-04-20 Jeffrey Howard Constantine Sewage treatment apparatus
JP2009509756A (en) * 2005-10-06 2009-03-12 シーメンス・ウォーター・テクノロジーズ・コーポレーション Dynamic control of membrane bioreactor system
JP2017209642A (en) * 2016-05-26 2017-11-30 メタウォーター株式会社 Method of adjusting return sludge amount and excess sludge amount from final sedimentation place

Also Published As

Publication number Publication date
JPH0147238B2 (en) 1989-10-12

Similar Documents

Publication Publication Date Title
JPS57156087A (en) Operating system for sewage treatment system by activated sludge method
JPS56115687A (en) Optimum operating method for sewage treatment system by activated sludge process
JPS5556893A (en) Controlling method for total outgoing sludge of aeration tank in activated sludge method
JPS57132593A (en) Partial aeration method in sewage and night soil treatment
JPS57119895A (en) Control method for return sludge
JPH0215278B2 (en)
Spielvogel et al. Optimal Control of Waste Water Flow in Sewerage Systems
JPS54119755A (en) Water receiving well inflow control method
JPS5753295A (en) Biological purification of waste water
JPS5799397A (en) Purification of water
Nogita et al. Calculation of Sludge Reservoir Volume for MLSS Control.
JPS6397296A (en) Flow rate controller for return sludge
JP2004000986A (en) Method for controlling biological water treatment apparatus
JPS55129118A (en) Controlling method for filter pond
JPS5697593A (en) Apparatus for controlling sludge turbidity in aeration vessel
JPS5794396A (en) Sludge controller
JPS55111897A (en) Apparatus for controlling accumulated sludge amount within final precipitation pond
JPS56116118A (en) Water level controller
JPS5662600A (en) Control method for chemical injection quantity in sludge treating equipment
JPS55114312A (en) Controlling method for sludge discharging facility of sedimentation basin
JPS55134696A (en) Surplus sludge control in sewage treatment process
JPS588314B2 (en) Excess sludge extraction control system for sewage treatment plants
JPS5419554A (en) System for controlling amount of superfluous sludge
JPS5776189A (en) Control of forming treatment liquid
JPS565187A (en) Microorganism concentration controller for activated sludge in aeration tank