JPS56130296A - Controlling of airflow in aeration tank - Google Patents

Controlling of airflow in aeration tank

Info

Publication number
JPS56130296A
JPS56130296A JP3394280A JP3394280A JPS56130296A JP S56130296 A JPS56130296 A JP S56130296A JP 3394280 A JP3394280 A JP 3394280A JP 3394280 A JP3394280 A JP 3394280A JP S56130296 A JPS56130296 A JP S56130296A
Authority
JP
Japan
Prior art keywords
air
transition point
area
motors
valves
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
JP3394280A
Other languages
Japanese (ja)
Other versions
JPS6344033B2 (en
Inventor
Hideyuki Hayashi
Itsuro Fujita
Yasushi Matsushita
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP3394280A priority Critical patent/JPS56130296A/en
Publication of JPS56130296A publication Critical patent/JPS56130296A/en
Publication of JPS6344033B2 publication Critical patent/JPS6344033B2/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 accurate airflow control according to water quality and sludge by calculating the breathing rate reduction constant and finding the transition point between the endogenous breathing area and matrix reduction area from the change of the above, and controlling to bring the transition point to a specified position.
CONSTITUTION: Air is sent from an air blower 9 through valves 10W14 to air dispersing plates 4W6 installed at the bottom of an aeration tank 2. Out of the above, valves 10W12 of the air dispersing plate 4W6 are driven by motors M1WM3 which are controlled by a calculation control unit 16 through a power amplifier 15. The calculation control unit 16, after making prescribed calculation from the data given by an MISS meter 17, a water temperature indicator 18 and DO meters DO1WDO7, determines the breathing rate reduction constant K, and using this value, calculates the transition point between the matrix reduction area and endogenous breathing area at this point of time. Then, the quantity of air spouting from the air dispersing plate 4W6 is controlled by driving the motors M1WM3 so that the value becomes the transition point setting value P.
COPYRIGHT: (C)1981,JPO&Japio
JP3394280A 1980-03-19 1980-03-19 Controlling of airflow in aeration tank Granted JPS56130296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3394280A JPS56130296A (en) 1980-03-19 1980-03-19 Controlling of airflow in aeration tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3394280A JPS56130296A (en) 1980-03-19 1980-03-19 Controlling of airflow in aeration tank

Publications (2)

Publication Number Publication Date
JPS56130296A true JPS56130296A (en) 1981-10-13
JPS6344033B2 JPS6344033B2 (en) 1988-09-02

Family

ID=12400554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3394280A Granted JPS56130296A (en) 1980-03-19 1980-03-19 Controlling of airflow in aeration tank

Country Status (1)

Country Link
JP (1) JPS56130296A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202096A (en) * 1982-05-21 1983-11-25 Yaskawa Electric Mfg Co Ltd Method for controlling concentration of dissolved oxygen
JPS5916595A (en) * 1982-07-19 1984-01-27 Toshiba Corp Controlling method of load in sewage treatment plant
JPS59109290A (en) * 1982-12-16 1984-06-23 Toshiba Corp Control device for load in aeration tank of sewage treating device
JP2008142626A (en) * 2006-12-11 2008-06-26 Matsushita Electric Ind Co Ltd Method for controlling aeration tank
JP2008168187A (en) * 2007-01-10 2008-07-24 Matsushita Electric Ind Co Ltd Control method for aeration tank
JP2008178792A (en) * 2007-01-24 2008-08-07 Sharp Corp Biological reaction method and biological reaction apparatus
JP2012228645A (en) * 2011-04-26 2012-11-22 Hitachi Ltd Water treatment apparatus, water treating method, and program for the method
JP5833791B1 (en) * 2015-06-17 2015-12-16 株式会社 小川環境研究所 Aeration control method for activated sludge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110865A (en) * 1975-03-24 1976-09-30 Hitachi Ltd Batsukisono yozonsansonodoseigyosochi
JPS51122957A (en) * 1975-04-18 1976-10-27 Yokogawa Hokushin Electric Corp Automatic control for dissolved oxygen concentration in an aeration ta nk
JPS52144169A (en) * 1976-05-25 1977-12-01 Meidensha Electric Mfg Co Ltd Apparatus for controlling amount of air supply to aeration tank
JPS52144168A (en) * 1976-05-25 1977-12-01 Meidensha Electric Mfg Co Ltd Apparatus for controlling amount of air supply to aeration tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110865A (en) * 1975-03-24 1976-09-30 Hitachi Ltd Batsukisono yozonsansonodoseigyosochi
JPS51122957A (en) * 1975-04-18 1976-10-27 Yokogawa Hokushin Electric Corp Automatic control for dissolved oxygen concentration in an aeration ta nk
JPS52144169A (en) * 1976-05-25 1977-12-01 Meidensha Electric Mfg Co Ltd Apparatus for controlling amount of air supply to aeration tank
JPS52144168A (en) * 1976-05-25 1977-12-01 Meidensha Electric Mfg Co Ltd Apparatus for controlling amount of air supply to aeration tank

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202096A (en) * 1982-05-21 1983-11-25 Yaskawa Electric Mfg Co Ltd Method for controlling concentration of dissolved oxygen
JPS5916595A (en) * 1982-07-19 1984-01-27 Toshiba Corp Controlling method of load in sewage treatment plant
JPH0376998B2 (en) * 1982-07-19 1991-12-09 Tokyo Shibaura Electric Co
JPS59109290A (en) * 1982-12-16 1984-06-23 Toshiba Corp Control device for load in aeration tank of sewage treating device
JPH032036B2 (en) * 1982-12-16 1991-01-14 Tokyo Shibaura Electric Co
JP2008142626A (en) * 2006-12-11 2008-06-26 Matsushita Electric Ind Co Ltd Method for controlling aeration tank
JP2008168187A (en) * 2007-01-10 2008-07-24 Matsushita Electric Ind Co Ltd Control method for aeration tank
JP2008178792A (en) * 2007-01-24 2008-08-07 Sharp Corp Biological reaction method and biological reaction apparatus
JP2012228645A (en) * 2011-04-26 2012-11-22 Hitachi Ltd Water treatment apparatus, water treating method, and program for the method
JP5833791B1 (en) * 2015-06-17 2015-12-16 株式会社 小川環境研究所 Aeration control method for activated sludge
WO2016203675A1 (en) * 2015-06-17 2016-12-22 株式会社小川環境研究所 Method for controlling amount of aeration in activated sludge

Also Published As

Publication number Publication date
JPS6344033B2 (en) 1988-09-02

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