JPS5534108A - Oxygen utilizing speed measuring device - Google Patents

Oxygen utilizing speed measuring device

Info

Publication number
JPS5534108A
JPS5534108A JP10559178A JP10559178A JPS5534108A JP S5534108 A JPS5534108 A JP S5534108A JP 10559178 A JP10559178 A JP 10559178A JP 10559178 A JP10559178 A JP 10559178A JP S5534108 A JPS5534108 A JP S5534108A
Authority
JP
Japan
Prior art keywords
dissolved oxygen
concn
oxygen
utilizing speed
instructions
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
JP10559178A
Other languages
Japanese (ja)
Inventor
Katsuhiro Ishikawa
Shuichi Yoshida
Masao Kaneko
Kyozo Kawachi
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 JP10559178A priority Critical patent/JPS5534108A/en
Publication of JPS5534108A publication Critical patent/JPS5534108A/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 automatically measure the oxygen utilizing speed of a mixed liquid in an aeration tank with the title device.
CONSTITUTION: In an oxygen utilizing speed measuring process on-off valve 8a is closed, and a mixed liquid passage consisting of aeration tank 9, pump 14, flow rate regulation valve 15 and dissolved oxygen meter detection part 16 becomes a circulation passage isolated from the outside. Since the mixed flow rate in the circulation passage is correctly detected at part 16, it is maintained at above the necessary value. In processing the signal instructing the concn. of dissolved oxygen in the measuring process, times t3 and t4 of the process are set in a timer beforehand, and dissolved oxygen concn. instructions i3 corresponding to time t3 are allowed to be memorized in an electric hold unit, combined with dissolved oxygen concn. instructions i4 corresponding to time t4, and subtracted with an operator to output a change (lowering) in dissolved oxygen concn. instructions per unit time as oxygen utilizing speed.
COPYRIGHT: (C)1980,JPO&Japio
JP10559178A 1978-08-31 1978-08-31 Oxygen utilizing speed measuring device Pending JPS5534108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10559178A JPS5534108A (en) 1978-08-31 1978-08-31 Oxygen utilizing speed measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10559178A JPS5534108A (en) 1978-08-31 1978-08-31 Oxygen utilizing speed measuring device

Publications (1)

Publication Number Publication Date
JPS5534108A true JPS5534108A (en) 1980-03-10

Family

ID=14411733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10559178A Pending JPS5534108A (en) 1978-08-31 1978-08-31 Oxygen utilizing speed measuring device

Country Status (1)

Country Link
JP (1) JPS5534108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811474A (en) * 1981-07-15 1983-01-22 Toshiba Corp Automatic taping device
JPS58159896A (en) * 1982-03-17 1983-09-22 Sintokogio Ltd Discriminating device of characteristic of activated sludge liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811474A (en) * 1981-07-15 1983-01-22 Toshiba Corp Automatic taping device
JPS6310070B2 (en) * 1981-07-15 1988-03-03 Tokyo Shibaura Electric Co
JPS58159896A (en) * 1982-03-17 1983-09-22 Sintokogio Ltd Discriminating device of characteristic of activated sludge liquid

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