JPS57135089A - Control system for excess sludge amount in active sludge process - Google Patents

Control system for excess sludge amount in active sludge process

Info

Publication number
JPS57135089A
JPS57135089A JP56019187A JP1918781A JPS57135089A JP S57135089 A JPS57135089 A JP S57135089A JP 56019187 A JP56019187 A JP 56019187A JP 1918781 A JP1918781 A JP 1918781A JP S57135089 A JPS57135089 A JP S57135089A
Authority
JP
Japan
Prior art keywords
sludge
amount
excess
discharged
returned
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
JP56019187A
Other languages
Japanese (ja)
Other versions
JPH026594B2 (en
Inventor
Takao Sekine
Takenatsu Imamura
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 JP56019187A priority Critical patent/JPS57135089A/en
Publication of JPS57135089A publication Critical patent/JPS57135089A/en
Publication of JPH026594B2 publication Critical patent/JPH026594B2/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 enable proper control of excess sludge, by computing the concentration of suspended solids from an inflow amount into an aeration tank, a returned sludge amount from a sedimentation pool to the aeration tank and a discharged excess sludge amount.
CONSTITUTION: An inflow amount QS into an aeration tank 1 is detected by a flow meter 2. Crude water aerated in the tank 1 is fed into a sedimentation pool 3, while active sludge in the sedimentation pool 3 is partially returned through a return pump 4 into the tank 1. Its excess part is discharged by a discharge pump 5, the concentration CR of the returned or discharged sludge is measured by a sludge densitometer 6, and the returned sludge amount QR and the discharged excess sludge amount QW are measured by flow meters 7 and 8, respectively. The detection signals QS, QR, QW of the flow meters 2, 7, 8 and the densitometer 6 are inputted to an excess sludge amount computer 9, while the measured concentration of inflow suspended solids is inputted when required to a computer 7 from detectors 10, 11.
COPYRIGHT: (C)1982,JPO&Japio
JP56019187A 1981-02-12 1981-02-12 Control system for excess sludge amount in active sludge process Granted JPS57135089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019187A JPS57135089A (en) 1981-02-12 1981-02-12 Control system for excess sludge amount in active sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019187A JPS57135089A (en) 1981-02-12 1981-02-12 Control system for excess sludge amount in active sludge process

Publications (2)

Publication Number Publication Date
JPS57135089A true JPS57135089A (en) 1982-08-20
JPH026594B2 JPH026594B2 (en) 1990-02-09

Family

ID=11992326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019187A Granted JPS57135089A (en) 1981-02-12 1981-02-12 Control system for excess sludge amount in active sludge process

Country Status (1)

Country Link
JP (1) JPS57135089A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100455654B1 (en) * 2002-02-04 2004-11-06 주식회사 팬지아이십일 BOD and COD prediction system of wastewater treatment plant effluent using Suspended Solids meter and software sensor technology

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4982392A (en) * 1972-12-09 1974-08-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4982392A (en) * 1972-12-09 1974-08-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100455654B1 (en) * 2002-02-04 2004-11-06 주식회사 팬지아이십일 BOD and COD prediction system of wastewater treatment plant effluent using Suspended Solids meter and software sensor technology

Also Published As

Publication number Publication date
JPH026594B2 (en) 1990-02-09

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