JPS5787886A - Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel - Google Patents

Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel

Info

Publication number
JPS5787886A
JPS5787886A JP16376180A JP16376180A JPS5787886A JP S5787886 A JPS5787886 A JP S5787886A JP 16376180 A JP16376180 A JP 16376180A JP 16376180 A JP16376180 A JP 16376180A JP S5787886 A JPS5787886 A JP S5787886A
Authority
JP
Japan
Prior art keywords
vessel
dissolved oxygen
distribution
treated water
sewage treatment
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
JP16376180A
Other languages
Japanese (ja)
Inventor
Takahei Kuwata
Kazuo Maeda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16376180A priority Critical patent/JPS5787886A/en
Publication of JPS5787886A publication Critical patent/JPS5787886A/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

Landscapes

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: To hold the quality of treated water stably and minimize electric energy for aeration by providing dissolved oxygen concn. distribution patterns in the vertical flow direction of the vessel inside, a metering means for required air feed rate, and an evaluating means selecting the optimum distribution pattern.
CONSTITUTION: An aerating vessel 2 into which inflow sewage 1 is injected, and a final settling basin 4 into which treated water 3 is flowed are provided, and the activated sludge 5 contg. aerobic microorganisms obtained in the basin 4 is returned by a return sludge pump 6 into said vessel 2. In such a sewage treatment system by an activaged sludge method, when the vessel 2 is divided equally to n-parts, the dissolved oxygen amt. (DO) in the i-th sub-aerating vessel 15 is expressed by the equationIwherein the capacity of the aerating vessel is defined as V, and therefore the distribution state of the DO is so evaluated as to maintain the quality of the treated water stably and to minimize the electric energy for aeration and is so set and controlled as to have the optimum DO distribution
COPYRIGHT: (C)1982,JPO&Japio
JP16376180A 1980-11-19 1980-11-19 Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel Pending JPS5787886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16376180A JPS5787886A (en) 1980-11-19 1980-11-19 Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16376180A JPS5787886A (en) 1980-11-19 1980-11-19 Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel

Publications (1)

Publication Number Publication Date
JPS5787886A true JPS5787886A (en) 1982-06-01

Family

ID=15780196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16376180A Pending JPS5787886A (en) 1980-11-19 1980-11-19 Control system for setting of optimum distribution of dissolved oxygen concentration in sewage treatment vessel

Country Status (1)

Country Link
JP (1) JPS5787886A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933465A (en) * 1972-07-28 1974-03-27
JPS51139174A (en) * 1975-05-27 1976-12-01 Kubota Ltd Apparatus of automatically controlling the amount of air blown in an a eration tank
JPS51144066A (en) * 1975-06-06 1976-12-10 Hitachi Ltd Method and apparatus of controlling the amount of exposure air in the activated sludge process
JPS5544376A (en) * 1978-09-26 1980-03-28 Mitsubishi Electric Corp Controller for distribution pattern of dissolved oxygen in aeration tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933465A (en) * 1972-07-28 1974-03-27
JPS51139174A (en) * 1975-05-27 1976-12-01 Kubota Ltd Apparatus of automatically controlling the amount of air blown in an a eration tank
JPS51144066A (en) * 1975-06-06 1976-12-10 Hitachi Ltd Method and apparatus of controlling the amount of exposure air in the activated sludge process
JPS5544376A (en) * 1978-09-26 1980-03-28 Mitsubishi Electric Corp Controller for distribution pattern of dissolved oxygen in aeration tank

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