JPS5534120A - Dissolved oxygen control method in activated sludge process - Google Patents

Dissolved oxygen control method in activated sludge process

Info

Publication number
JPS5534120A
JPS5534120A JP10638178A JP10638178A JPS5534120A JP S5534120 A JPS5534120 A JP S5534120A JP 10638178 A JP10638178 A JP 10638178A JP 10638178 A JP10638178 A JP 10638178A JP S5534120 A JPS5534120 A JP S5534120A
Authority
JP
Japan
Prior art keywords
air
air flow
exhaust gas
activated sludge
signal
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
JP10638178A
Other languages
Japanese (ja)
Other versions
JPS5754196B2 (en
Inventor
Ryohei Tanuma
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP10638178A priority Critical patent/JPS5534120A/en
Priority to DE2935120A priority patent/DE2935120C2/en
Publication of JPS5534120A publication Critical patent/JPS5534120A/en
Publication of JPS5754196B2 publication Critical patent/JPS5754196B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1806—Water biological or chemical oxygen demand (BOD or COD)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/006—Regulation methods for biological treatment
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • 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 maintain excellent properties of activated sludge and realize power saving, by supplying a minimum necessary amount of air in the range not causing drop of breathing activity of the activated sludge due to decrease of dissolved oxygen (DO).
CONSTITUTION: Aeration air dispensed from air dispensing pipe 2 is conveyed from an air blower 11. This aeration air is discharged as exhaust gas from the surface of the waste water, and this exhaust gas is sampled by an exhaust gas capturing device 3. The sampled exhaust gas is led into an oxygen analyzer 4, which detects the difference P between the oxygen partial pressure in the aeration air and the oxygen partial pressre in the exhaust gas, and transmits an oxygen partial pressure differential signal P. Receiving this signal, an operational unit 7 gives an air flow target value signal to an air flow controller 8, and drives a motor-driven valve 10 for air flow operation so that the deviation between the aeration air flow signal F introduced from an air flow meter 9 and the air flow target value signal may be zero. As a result, a minimum necessary amount of air may be supplied into the air dispensing pipe 2, and the breating activity of the activated sludge may not be lowered.
COPYRIGHT: (C)1980,JPO&Japio
JP10638178A 1978-08-31 1978-08-31 Dissolved oxygen control method in activated sludge process Granted JPS5534120A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10638178A JPS5534120A (en) 1978-08-31 1978-08-31 Dissolved oxygen control method in activated sludge process
DE2935120A DE2935120C2 (en) 1978-08-31 1979-08-30 Process for optimizing the air input into a waste water / activated sludge mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10638178A JPS5534120A (en) 1978-08-31 1978-08-31 Dissolved oxygen control method in activated sludge process

Publications (2)

Publication Number Publication Date
JPS5534120A true JPS5534120A (en) 1980-03-10
JPS5754196B2 JPS5754196B2 (en) 1982-11-17

Family

ID=14432123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10638178A Granted JPS5534120A (en) 1978-08-31 1978-08-31 Dissolved oxygen control method in activated sludge process

Country Status (2)

Country Link
JP (1) JPS5534120A (en)
DE (1) DE2935120C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449113B2 (en) 2002-09-24 2008-11-11 Advanced Aeration Control, Llc Controlling wastewater treatment processes
CN109354156A (en) * 2018-12-12 2019-02-19 辽宁科技学院 A kind of aerating system of biochemical sewage processing pond

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3038305A1 (en) * 1980-10-10 1982-05-19 Friedrich Wilhelm Dipl.-Ing. 6100 Darmstadt Siepmann METHOD AND DEVICE FOR DETECTING BIODEGRADABLE AND TOXIC INGREDIENTS AND AQUEOUS SOLUTIONS, e.g. SEWAGE
CA1251279A (en) * 1986-05-16 1989-03-14 The Governors Of The University Of Alberta Determination of oxygen uptake rate in wastewater treatment plants
JPH0665399B2 (en) * 1986-09-09 1994-08-24 株式会社西原環境衛生研究所 Method and apparatus for treating activated sludge by intermittent aeration method
DE3835374A1 (en) * 1988-10-18 1990-04-19 Boes Manfred Process for purifying waste water in an activation tank
DE3932640C2 (en) * 1989-09-29 1998-07-23 Orpegen Med Molekularbioforsch Process for controlling an activated sludge sewage treatment plant based on the specific control of individual parameters
DE4140915C2 (en) * 1991-04-20 2000-06-08 Intech Pev Informationstechnis Wastewater treatment plant with a single-stage aeration tank and a control system for the biochemical processes
NL9201062A (en) * 1992-06-15 1994-01-03 Avebe Coop Verkoop Prod SYSTEM FOR THE AEROBIC PURIFICATION OF WASTE WATER.
DE4229550A1 (en) * 1992-09-04 1994-03-10 Grundig Emv Arrangement for regulating the bioactivity of biological systems
FR2724646B1 (en) * 1994-09-20 1997-12-12 Lyonnaise Eaux Eclairage METHOD FOR REGULATING THE AERATION OF A BIOLOGICAL WASTEWATER TREATMENT BASIN
DE19509777A1 (en) * 1995-03-17 1996-09-19 Grundig Emv Methods for the determination of carbon degradation and nitrification in biological systems
DE102015109626B3 (en) * 2015-06-16 2016-09-01 Inwatech Enviromental Kft. Process for conditioning a biodegradable wastewater stream

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234035B1 (en) * 1973-06-25 1979-01-12 Air Liquide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449113B2 (en) 2002-09-24 2008-11-11 Advanced Aeration Control, Llc Controlling wastewater treatment processes
CN109354156A (en) * 2018-12-12 2019-02-19 辽宁科技学院 A kind of aerating system of biochemical sewage processing pond
CN109354156B (en) * 2018-12-12 2021-08-06 辽宁科技学院 Aeration system of biochemical sewage treatment tank

Also Published As

Publication number Publication date
JPS5754196B2 (en) 1982-11-17
DE2935120A1 (en) 1980-03-20
DE2935120C2 (en) 1985-03-21

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