JPS5460764A - Method of measuring activity of activated sludge in activated sludge treating method - Google Patents

Method of measuring activity of activated sludge in activated sludge treating method

Info

Publication number
JPS5460764A
JPS5460764A JP12648277A JP12648277A JPS5460764A JP S5460764 A JPS5460764 A JP S5460764A JP 12648277 A JP12648277 A JP 12648277A JP 12648277 A JP12648277 A JP 12648277A JP S5460764 A JPS5460764 A JP S5460764A
Authority
JP
Japan
Prior art keywords
activated sludge
sludge
oxygen utilization
activity
velocity
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
JP12648277A
Other languages
Japanese (ja)
Inventor
Kazuo Shibazaki
Junji Hizuka
Yuichi Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12648277A priority Critical patent/JPS5460764A/en
Publication of JPS5460764A publication Critical patent/JPS5460764A/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 provide the subject method wherein under a condition that the substrate load is sufficiently large or under that the substrate load is extremely small, the activity of activated sludge is obtained from the oxygen utilization velocity, whereby the activity of the activated sludge is measured from the measured value of the oxygen utilization velocity.
CONSTITUTION: Sewage is caused to flow from a crude solution tank 1 into an aeration tank 4. On the other hand, air is supplied from a supplier 2 into said aeration tank 4. Then, a mixture solution of activated sludge is subjected to precipitation treatment to extract precipitated sludge. A part of said precipitated sludge is returned to said aeration tank, and the remaining sludge is exhausted out of the system. Upon this occasion, the extracted sludge from said precipitation pond 5 and the sewage from the crude solution tank 1 are mixed with each other so that the oxygen utilization velocity of the activated sludge mixture solution assumes minimum or maximum state in such a degree that said oxygen utilization velocity does not become the function of the substrate load, whereby the oxygen utilization velocity of this mixture solution is measured, and the activity of the activated sludge is obtained on the basis of this measured value.
COPYRIGHT: (C)1979,JPO&Japio
JP12648277A 1977-10-21 1977-10-21 Method of measuring activity of activated sludge in activated sludge treating method Pending JPS5460764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12648277A JPS5460764A (en) 1977-10-21 1977-10-21 Method of measuring activity of activated sludge in activated sludge treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12648277A JPS5460764A (en) 1977-10-21 1977-10-21 Method of measuring activity of activated sludge in activated sludge treating method

Publications (1)

Publication Number Publication Date
JPS5460764A true JPS5460764A (en) 1979-05-16

Family

ID=14936296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12648277A Pending JPS5460764A (en) 1977-10-21 1977-10-21 Method of measuring activity of activated sludge in activated sludge treating method

Country Status (1)

Country Link
JP (1) JPS5460764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256191A (en) * 1987-04-14 1988-10-24 Nishihara Environ Sanit Res Corp Microbial activity measurement method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256191A (en) * 1987-04-14 1988-10-24 Nishihara Environ Sanit Res Corp Microbial activity measurement method and device

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