JPS5775190A - Method and device for automatic control of sewage treatment by activated sludge method - Google Patents

Method and device for automatic control of sewage treatment by activated sludge method

Info

Publication number
JPS5775190A
JPS5775190A JP15018580A JP15018580A JPS5775190A JP S5775190 A JPS5775190 A JP S5775190A JP 15018580 A JP15018580 A JP 15018580A JP 15018580 A JP15018580 A JP 15018580A JP S5775190 A JPS5775190 A JP S5775190A
Authority
JP
Japan
Prior art keywords
vessel
rate
controller
outflow part
oxygen intake
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
JP15018580A
Other languages
Japanese (ja)
Inventor
Terutaka Sawara
Tadashi Yamazaki
Moriyuki Sumiyoshi
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.)
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies 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 Hitachi Plant Construction Co Ltd, Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP15018580A priority Critical patent/JPS5775190A/en
Publication of JPS5775190A publication Critical patent/JPS5775190A/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

Abstract

PURPOSE: To obtain stable treated water at high load and reduce consumption of driving power by calculating the rate of oxygen intake from the rate of change in dissolved oxygen near the outflow part of the 1st aerating vessel, comparing the same with set upper and lower limit values, and controlling the flow rate of blowing air and the inflow rate of sewage.
CONSTITUTION: The activated sludge type treating device consists of a raw water storage vessel 1, an aerating vessel 3, a settling vessel 4, a reaerating vessel 5, sludge withdrawing plates, air compressors 8, 9, etc. An automatic control device consisting of sensors 12, 13 and an automatic controller 14 is attached to the interior liquid outflow part of the vessel 3. The interior liquid in the outflow part of the vessel 3 is sucked up into a piping 11, and the amt. of dissolved oxygen after the consumption is measured with the sensor 12, the value whereof is introduced to the controller 14 having an oxygen intake rate operating mechanism. The controller 14 compares the result of the operation and the upper and lower limit values of the oxygen intake rate having beforehand been set in a storage circuit, and controls the flow rate of a raw water pump 2 or the compressor 9 in such a way that it is within these range.
COPYRIGHT: (C)1982,JPO&Japio
JP15018580A 1980-10-28 1980-10-28 Method and device for automatic control of sewage treatment by activated sludge method Pending JPS5775190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15018580A JPS5775190A (en) 1980-10-28 1980-10-28 Method and device for automatic control of sewage treatment by activated sludge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15018580A JPS5775190A (en) 1980-10-28 1980-10-28 Method and device for automatic control of sewage treatment by activated sludge method

Publications (1)

Publication Number Publication Date
JPS5775190A true JPS5775190A (en) 1982-05-11

Family

ID=15491364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15018580A Pending JPS5775190A (en) 1980-10-28 1980-10-28 Method and device for automatic control of sewage treatment by activated sludge method

Country Status (1)

Country Link
JP (1) JPS5775190A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS60206491A (en) * 1984-03-29 1985-10-18 Shimizu Constr Co Ltd Apparatus for treatment of waste water
US5441642A (en) * 1993-06-24 1995-08-15 The Commonwealth Industrial Gases Limited Method and apparatus for controlled biological treatment of waste water
JPH07275843A (en) * 1994-04-08 1995-10-24 Watanabe Consultants:Kk Operation control method for drainage treatment facility and central control system for more than one drainage treatment facility
US5585001A (en) * 1993-11-24 1996-12-17 Samsung Petrochemical Co., Ltd. Waste water treatment method employing a continuous respiration meter and an apparatus thereof
WO2014034827A1 (en) * 2012-08-31 2014-03-06 東レ株式会社 Fresh water generation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923947A (en) * 1972-07-01 1974-03-02
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923947A (en) * 1972-07-01 1974-03-02
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS60206491A (en) * 1984-03-29 1985-10-18 Shimizu Constr Co Ltd Apparatus for treatment of waste water
US5441642A (en) * 1993-06-24 1995-08-15 The Commonwealth Industrial Gases Limited Method and apparatus for controlled biological treatment of waste water
US5585001A (en) * 1993-11-24 1996-12-17 Samsung Petrochemical Co., Ltd. Waste water treatment method employing a continuous respiration meter and an apparatus thereof
JPH07275843A (en) * 1994-04-08 1995-10-24 Watanabe Consultants:Kk Operation control method for drainage treatment facility and central control system for more than one drainage treatment facility
WO2014034827A1 (en) * 2012-08-31 2014-03-06 東レ株式会社 Fresh water generation method
JPWO2014034827A1 (en) * 2012-08-31 2016-08-08 東レ株式会社 Fresh water generation method

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