JPS5624096A - Control of oxygen dissolution in activated sludge aeration tank - Google Patents

Control of oxygen dissolution in activated sludge aeration tank

Info

Publication number
JPS5624096A
JPS5624096A JP710680A JP710680A JPS5624096A JP S5624096 A JPS5624096 A JP S5624096A JP 710680 A JP710680 A JP 710680A JP 710680 A JP710680 A JP 710680A JP S5624096 A JPS5624096 A JP S5624096A
Authority
JP
Japan
Prior art keywords
oxygen
mixture
aeration tank
set value
activated 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.)
Pending
Application number
JP710680A
Other languages
Japanese (ja)
Inventor
Susumu Hashimoto
Masanori Fujita
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP710680A priority Critical patent/JPS5624096A/en
Publication of JPS5624096A publication Critical patent/JPS5624096A/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 control the amount of dissolved oxygen in the aeration tank for raising the utilizing rate of oxygen by introducing pure oxygen through a pathway separated from the flow of ventilating and stirring air in the clarification of waste water by sending pure oxygen into the mixture of activated sludge and waste water in the aeration tank.
CONSTITUTION: Air from an air blowing device 11 is sent upwardly in the form of bubbles into the mixture 10 of activated sludge and waste water inside the aeration tank 1 to stir the mixture 10. On the other hand, pure oxygen is injected from the pure oxygen blowing device 21 into the water 20 to be treated in the oxygen dissolution tank 2 to saturate the water 20 with oxygen. When the concentration of dissolved oxygen in the mixture 10 inside the tank 1 is detected, and the value is read out by an automatic control meter 4 and reduced to less than the set value, a needle valve 6 connected to a control box 5 is opened to introduce the oxygen-saturated water 20 into the mixture 10 to increase the amount of dissolved oxygen to the set value. When the set value is reached, the meter 3 detects it, the valve 6 is closed, and the amount of dissolved oxygen is automatically controlled to the set value.
COPYRIGHT: (C)1981,JPO&Japio
JP710680A 1980-01-23 1980-01-23 Control of oxygen dissolution in activated sludge aeration tank Pending JPS5624096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP710680A JPS5624096A (en) 1980-01-23 1980-01-23 Control of oxygen dissolution in activated sludge aeration tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP710680A JPS5624096A (en) 1980-01-23 1980-01-23 Control of oxygen dissolution in activated sludge aeration tank

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50091231A Division JPS5215170A (en) 1975-07-25 1975-07-25 Method of controlling soluble oxygen remaining in tank containing acti ve air-exposed dirt

Publications (1)

Publication Number Publication Date
JPS5624096A true JPS5624096A (en) 1981-03-07

Family

ID=11656831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP710680A Pending JPS5624096A (en) 1980-01-23 1980-01-23 Control of oxygen dissolution in activated sludge aeration tank

Country Status (1)

Country Link
JP (1) JPS5624096A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003024971A (en) * 2001-07-16 2003-01-28 Kurita Water Ind Ltd Wastewater treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003024971A (en) * 2001-07-16 2003-01-28 Kurita Water Ind Ltd Wastewater treatment method

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