JPS565191A - Microorganism concentration controller for activated sludge in aeration tank - Google Patents

Microorganism concentration controller for activated sludge in aeration tank

Info

Publication number
JPS565191A
JPS565191A JP8052779A JP8052779A JPS565191A JP S565191 A JPS565191 A JP S565191A JP 8052779 A JP8052779 A JP 8052779A JP 8052779 A JP8052779 A JP 8052779A JP S565191 A JPS565191 A JP S565191A
Authority
JP
Japan
Prior art keywords
mlss
regulator
aeration tank
activated sludge
microorganism concentration
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
JP8052779A
Other languages
Japanese (ja)
Other versions
JPS574395B2 (en
Inventor
Tatsuo Oki
Yoji Shimizu
Yoshizo Okamoto
Hatsuo Yotsumoto
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 JP8052779A priority Critical patent/JPS565191A/en
Publication of JPS565191A publication Critical patent/JPS565191A/en
Publication of JPS574395B2 publication Critical patent/JPS574395B2/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 operate a valve for returned sludge and an inflow door for sewage for keeping MLSS (activated sludge microorganism concentration) of a specific circuit and also even MLSS of the other circuits constant in an aeration tank operated by a step aeration method.
CONSTITUTION: The signal Ca of MLSS at the inlet of the circuit A is inputted in the MLSS regulator 9 and the output of the regulator 9 is used in regulating the amount of incoming sewage by operating an inflow door 2, and also the signal Cb of the MLSS at the inlet of the circuit B is inputted in the MLSS regulator 6 and the output of the regulator 6 is used in regulating the amount of returned sludge by operating the returned sludge valve 3. Thus, MLSS of both the circuits A and B can be kept at respective set values for a long length of time.
COPYRIGHT: (C)1981,JPO&Japio
JP8052779A 1979-06-26 1979-06-26 Microorganism concentration controller for activated sludge in aeration tank Granted JPS565191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8052779A JPS565191A (en) 1979-06-26 1979-06-26 Microorganism concentration controller for activated sludge in aeration tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8052779A JPS565191A (en) 1979-06-26 1979-06-26 Microorganism concentration controller for activated sludge in aeration tank

Publications (2)

Publication Number Publication Date
JPS565191A true JPS565191A (en) 1981-01-20
JPS574395B2 JPS574395B2 (en) 1982-01-26

Family

ID=13720792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8052779A Granted JPS565191A (en) 1979-06-26 1979-06-26 Microorganism concentration controller for activated sludge in aeration tank

Country Status (1)

Country Link
JP (1) JPS565191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925972A (en) * 1982-08-02 1984-02-10 Sumitomo Electric Ind Ltd Coated hard member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925972A (en) * 1982-08-02 1984-02-10 Sumitomo Electric Ind Ltd Coated hard member
JPS6123871B2 (en) * 1982-08-02 1986-06-07 Sumitomo Electric Industries

Also Published As

Publication number Publication date
JPS574395B2 (en) 1982-01-26

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