JPS5564896A - Automatic control method for oxidation-reduction potential in aerobic active sludge treatment - Google Patents

Automatic control method for oxidation-reduction potential in aerobic active sludge treatment

Info

Publication number
JPS5564896A
JPS5564896A JP13700178A JP13700178A JPS5564896A JP S5564896 A JPS5564896 A JP S5564896A JP 13700178 A JP13700178 A JP 13700178A JP 13700178 A JP13700178 A JP 13700178A JP S5564896 A JPS5564896 A JP S5564896A
Authority
JP
Japan
Prior art keywords
orp
value
oxidation
reduction potential
active sludge
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
JP13700178A
Other languages
Japanese (ja)
Other versions
JPS6221597B2 (en
Inventor
Masahiro Fujii
Tomoji Miyamoto
Masaaki Hatta
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP13700178A priority Critical patent/JPS5564896A/en
Publication of JPS5564896A publication Critical patent/JPS5564896A/en
Publication of JPS6221597B2 publication Critical patent/JPS6221597B2/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 perform a stable active sludge treatment by using an automatic oxidation-reduction potential controller to maintain the oxidation-reduction potential (ORP) in an aeration tank at the optimum value by automatically controlling the amount of air to be supplied into the aeration tank and the amount of raw water (BOD quantity).
CONSTITUTION: When active sludge is in a level of normal activity, the ORP in the aeration tank 1 is detected by the combined electrodes 6. When the ORP value is at the reduction side, the automatic ORP controller 5 instructs the damper 9 to be opened to increase the aeration, allowing a shift to be made toward a high ORP value. When the ORP value approaches the set value, the damper 9 is being closed to decrease the aeration by means of the proportional control on the ORP value. When the ORP value exceeds the set value by about +50mV, the ORP controller 5 directs the water pump 8 to increase the original water supply by about 5W10% so that the set value is resumed.
COPYRIGHT: (C)1980,JPO&Japio
JP13700178A 1978-11-07 1978-11-07 Automatic control method for oxidation-reduction potential in aerobic active sludge treatment Granted JPS5564896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13700178A JPS5564896A (en) 1978-11-07 1978-11-07 Automatic control method for oxidation-reduction potential in aerobic active sludge treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13700178A JPS5564896A (en) 1978-11-07 1978-11-07 Automatic control method for oxidation-reduction potential in aerobic active sludge treatment

Publications (2)

Publication Number Publication Date
JPS5564896A true JPS5564896A (en) 1980-05-15
JPS6221597B2 JPS6221597B2 (en) 1987-05-13

Family

ID=15188468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13700178A Granted JPS5564896A (en) 1978-11-07 1978-11-07 Automatic control method for oxidation-reduction potential in aerobic active sludge treatment

Country Status (1)

Country Link
JP (1) JPS5564896A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943414A (en) * 1982-09-03 1984-03-10 Mitsubishi Electric Corp Controllng method of concentrating vessel by measurement of oxidation-reduction potential
JPS6064698A (en) * 1983-09-19 1985-04-13 Masahiro Masuda Controlling apparatus of activated sludge process
JPS61136494A (en) * 1984-12-07 1986-06-24 Nisshin:Kk Treatment of water
JPS6242796A (en) * 1985-08-15 1987-02-24 Nippon Steel Corp Treatment of waste water and method for acclimatizing activated sludge
JPH06206086A (en) * 1993-01-08 1994-07-26 Nippon Steel Corp Biological treatment of waste liquid and acclimation of microorganism
JP2004097962A (en) * 2002-09-10 2004-04-02 Nippon Steel Corp Decontamination method of contaminated soil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4533238B2 (en) * 2005-05-18 2010-09-01 新日本製鐵株式会社 Water quality measuring apparatus and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943414A (en) * 1982-09-03 1984-03-10 Mitsubishi Electric Corp Controllng method of concentrating vessel by measurement of oxidation-reduction potential
JPS6064698A (en) * 1983-09-19 1985-04-13 Masahiro Masuda Controlling apparatus of activated sludge process
JPH0475079B2 (en) * 1983-09-19 1992-11-27
JPS61136494A (en) * 1984-12-07 1986-06-24 Nisshin:Kk Treatment of water
JPS6242796A (en) * 1985-08-15 1987-02-24 Nippon Steel Corp Treatment of waste water and method for acclimatizing activated sludge
JPH037436B2 (en) * 1985-08-15 1991-02-01 Shinnippon Seitetsu Kk
JPH06206086A (en) * 1993-01-08 1994-07-26 Nippon Steel Corp Biological treatment of waste liquid and acclimation of microorganism
JP2004097962A (en) * 2002-09-10 2004-04-02 Nippon Steel Corp Decontamination method of contaminated soil

Also Published As

Publication number Publication date
JPS6221597B2 (en) 1987-05-13

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