JPS57119894A - Control device for sludge - Google Patents

Control device for sludge

Info

Publication number
JPS57119894A
JPS57119894A JP56003869A JP386981A JPS57119894A JP S57119894 A JPS57119894 A JP S57119894A JP 56003869 A JP56003869 A JP 56003869A JP 386981 A JP386981 A JP 386981A JP S57119894 A JPS57119894 A JP S57119894A
Authority
JP
Japan
Prior art keywords
sludge
flowmeter
settling basin
signals
inputted
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
JP56003869A
Other languages
Japanese (ja)
Other versions
JPH0147237B2 (en
Inventor
Ryosuke Miura
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 JP56003869A priority Critical patent/JPS57119894A/en
Publication of JPS57119894A publication Critical patent/JPS57119894A/en
Publication of JPH0147237B2 publication Critical patent/JPH0147237B2/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)
  • Control Of Non-Electrical Variables (AREA)

Abstract

PURPOSE: To perform quantitative control of activated sludge with high accuracy and stability by coordinating a control loop for accumulation of sludge in a settling basin, a control loop for period of stagnation of sludge, a control loop for return sludge rate and other control loops mutually.
CONSTITUTION: The signals from a flowmeter 1 and a densitometer 2 and the signals of a return sludge flowmeter 8, a densirometer 10 and a withdraw flowmeter 11 are inputted to an aeration tank simulation program 13, by which MLSSconcn. are calculated. This value is inputted together with the signals of the flowmeter 1, the flowmeter 8 and the flowmeter 11 to a settling basin simmulation 14. The results thereof are fed to the 2nd operator 16, by which the amt. of the sludge accumulating in a settling basin 4 is calculated. This value is inputted to the 2nd controller 20 which calculates the rate of increase or decrease correction for the flow rate of return sludge. Further, the output of the controller 20 is fed to the 6th operator 21 having the contacts permitting setting of permissible upper and lower limit values of the amt. of sludge accumulated in the settling basin, and if the upper and lower limit values are display device 22 is operated.
COPYRIGHT: (C)1982,JPO&Japio
JP56003869A 1981-01-16 1981-01-16 Control device for sludge Granted JPS57119894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003869A JPS57119894A (en) 1981-01-16 1981-01-16 Control device for sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003869A JPS57119894A (en) 1981-01-16 1981-01-16 Control device for sludge

Publications (2)

Publication Number Publication Date
JPS57119894A true JPS57119894A (en) 1982-07-26
JPH0147237B2 JPH0147237B2 (en) 1989-10-12

Family

ID=11569191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003869A Granted JPS57119894A (en) 1981-01-16 1981-01-16 Control device for sludge

Country Status (1)

Country Link
JP (1) JPS57119894A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233595A (en) * 1985-08-07 1987-02-13 Yaskawa Electric Mfg Co Ltd Control device for sewage treatment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233595A (en) * 1985-08-07 1987-02-13 Yaskawa Electric Mfg Co Ltd Control device for sewage treatment

Also Published As

Publication number Publication date
JPH0147237B2 (en) 1989-10-12

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