JPS5597290A - Control for waste water treatment of activated sludge - Google Patents

Control for waste water treatment of activated sludge

Info

Publication number
JPS5597290A
JPS5597290A JP297879A JP297879A JPS5597290A JP S5597290 A JPS5597290 A JP S5597290A JP 297879 A JP297879 A JP 297879A JP 297879 A JP297879 A JP 297879A JP S5597290 A JPS5597290 A JP S5597290A
Authority
JP
Japan
Prior art keywords
sludge
meter
waste water
tank
regulating valve
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
JP297879A
Other languages
Japanese (ja)
Inventor
Yasunori Mazaki
Kazuo Miyazaki
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP297879A priority Critical patent/JPS5597290A/en
Publication of JPS5597290A publication Critical patent/JPS5597290A/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 keep the supply of BOD almost constant by regulating the amount of waste water coming into aeration tank according to the measured value of dissolved oxygen concentration in the aeration tank.
CONSTITUTION: Waste water is introduced through the flow meter 2 and the flow regulating valve 3 into the aeration tank 4 from the supply pipe 1, and air is sent into the aeration tank 1 from the blower 5 in order to supply oxygen required by activated sludge. Treated water is introduced through the pipe 6 into the separtion tank 7 and activated sludge separated is discharged from the overflow pipe 8, where the separated activated sludge is drawn out by the sludge pump 9 and its part is sent back in a difinite amount to the tank 4 by operating the flow regulating valve 12 by the flow meter 10 and the flow rate indicating regulator 11. The tank 4 is provided with the dissolved oxygen meter 13 and the flow regulating valve 3 is operated by the dissolved oxygen concentration indicating regulator 14 following the meter 13 so as to keep the dissolved oxygen concentration constant and the amount of incoming waste water is controlled. In this case, excess sludge is drawn out by operating the regulating valve 17 by the sludge interface indicating regulator 16 in such a wat that the sludge interface is kept constant by the sludge interface meter 15 not to change the concentration of returned slduge.
COPYRIGHT: (C)1980,JPO&Japio
JP297879A 1979-01-17 1979-01-17 Control for waste water treatment of activated sludge Pending JPS5597290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP297879A JPS5597290A (en) 1979-01-17 1979-01-17 Control for waste water treatment of activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP297879A JPS5597290A (en) 1979-01-17 1979-01-17 Control for waste water treatment of activated sludge

Publications (1)

Publication Number Publication Date
JPS5597290A true JPS5597290A (en) 1980-07-24

Family

ID=11544455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP297879A Pending JPS5597290A (en) 1979-01-17 1979-01-17 Control for waste water treatment of activated sludge

Country Status (1)

Country Link
JP (1) JPS5597290A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2006254A1 (en) * 2007-06-12 2008-12-24 BioPetroClean Inc. Wastewater treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2006254A1 (en) * 2007-06-12 2008-12-24 BioPetroClean Inc. Wastewater treatment
US8038881B2 (en) 2007-06-12 2011-10-18 Biological Petroleum Cleaning Ltd. Wastewater treatment
US8277658B2 (en) 2007-06-12 2012-10-02 Biological Petroleum Cleaning Ltd. Wastewater treatment

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