JPS5613084A - Control unit of excess sludge flow rate - Google Patents

Control unit of excess sludge flow rate

Info

Publication number
JPS5613084A
JPS5613084A JP8807179A JP8807179A JPS5613084A JP S5613084 A JPS5613084 A JP S5613084A JP 8807179 A JP8807179 A JP 8807179A JP 8807179 A JP8807179 A JP 8807179A JP S5613084 A JPS5613084 A JP S5613084A
Authority
JP
Japan
Prior art keywords
sludge
weight
stagnating
basin
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.)
Pending
Application number
JP8807179A
Other languages
Japanese (ja)
Inventor
Kazuo Shibazaki
Chikau Yamanaka
Junji Hizuka
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 JP8807179A priority Critical patent/JPS5613084A/en
Publication of JPS5613084A publication Critical patent/JPS5613084A/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

Landscapes

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: A control unit of excess sludge flow rate which is able to maintain the weight of the sludge stagnating in the system always at a proper value with ease by obtaining the weight of the sludge stagnating in a final sedimentation basin accurately through calculation and obtaining the measured value of the weight of the sludge in an aeration tank etc.
CONSTITUTION: This control unit for excess sludge flow rate is provided with an aeration tank 2 supplying waste water, activated sludge and air and a final sedimentation basin 3 making solid-liquid separation of the mixed liquid flowing out from this tank 2 into treated water and activated sludge. The activated sludge accumulated in the bottom of the basin 3 is drawn and part thereof is returned 4 into the tank 2. The excess activated sludge is discharged 9 to outside the system. Next, the weight of the sludge stagnating in the basin 3 is accurately obtained through calculation based on the model of the basin 3 and the weight of the sludge in the tank 2 etc. is obtained by measuring MLSS concentration etc. From these calculated value and measured value, the weight of the sludge stangating in the system are accurately and easily obtained whereby the weight of the stagnating sludge is maintained at a proper value at all times.
COPYRIGHT: (C)1981,JPO&Japio
JP8807179A 1979-07-13 1979-07-13 Control unit of excess sludge flow rate Pending JPS5613084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8807179A JPS5613084A (en) 1979-07-13 1979-07-13 Control unit of excess sludge flow rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8807179A JPS5613084A (en) 1979-07-13 1979-07-13 Control unit of excess sludge flow rate

Publications (1)

Publication Number Publication Date
JPS5613084A true JPS5613084A (en) 1981-02-07

Family

ID=13932612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8807179A Pending JPS5613084A (en) 1979-07-13 1979-07-13 Control unit of excess sludge flow rate

Country Status (1)

Country Link
JP (1) JPS5613084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6248207A (en) * 1985-08-27 1987-03-02 名東電気工事株式会社 Hanger wheel for aerial wire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6248207A (en) * 1985-08-27 1987-03-02 名東電気工事株式会社 Hanger wheel for aerial wire

Similar Documents

Publication Publication Date Title
JPS5613084A (en) Control unit of excess sludge flow rate
JPS644295A (en) Waste water treatment apparatus
JPS5613085A (en) Control unit of excess sludge flow rate
JPS57132593A (en) Partial aeration method in sewage and night soil treatment
JPS57117389A (en) Apparatus for treating sewage
JPS5579091A (en) Drawing controller for excessive sludge
Nogita et al. Calculation of Sludge Reservoir Volume for MLSS Control.
JPS5687486A (en) Method and apparatus for detecting and controlling bod value of waste water by its turbidity
JPS57117390A (en) Apparatus for controlling activated sludge
JPS5539260A (en) Treating method for waste water with activated sludge
JPS5444594A (en) Measuring method of oxygen utilization speed of activated sludge
JPS57102291A (en) Control method for amount of activated sludge
JPS5710389A (en) Detecting device for rain-water arrival at aerating tank in sewage treating plant
JPS5570393A (en) Method and apparatus for treating waste water by activated sludge
JPS5597290A (en) Control for waste water treatment of activated sludge
JPS55127193A (en) Controlling method of returned sludge
JPS56129090A (en) Controller of water disposer in active sludge process
JPS565186A (en) Microorganism concentration controller for activated sludge in aeration tank
JPS55114312A (en) Controlling method for sludge discharging facility of sedimentation basin
JPS56147693A (en) Method for determinating sludge concentration in aeration tank
JPS55102495A (en) Excess sluge drawing control in sewage treatment plant
JPS5586587A (en) Sewage treating apparatus
JPS5343957A (en) Waste water and sludge measuring instrument for activated sludge treatment works
JPS57135089A (en) Control system for excess sludge amount in active sludge process
JPS5697593A (en) Apparatus for controlling sludge turbidity in aeration vessel