JPS5638182A - Aeration apparatus - Google Patents

Aeration apparatus

Info

Publication number
JPS5638182A
JPS5638182A JP11417579A JP11417579A JPS5638182A JP S5638182 A JPS5638182 A JP S5638182A JP 11417579 A JP11417579 A JP 11417579A JP 11417579 A JP11417579 A JP 11417579A JP S5638182 A JPS5638182 A JP S5638182A
Authority
JP
Japan
Prior art keywords
vessel
bod
dirty water
sludge
pump
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
JP11417579A
Other languages
Japanese (ja)
Inventor
Minoru Iwata
Yasuhiro Yahagi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11417579A priority Critical patent/JPS5638182A/en
Publication of JPS5638182A publication Critical patent/JPS5638182A/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 effectively perform the aeration treatment even if the quantity and quality of dirty water is changed, by controlling the quantity of air supply and returning quantity of activated sludge in accordance with the signal of detecting means of BOD so as to keep BOD in the regulation vessel at a constant value or less.
CONSTITUTION: Operation of the blower 3 and the pump 17, is ordered by the aeration treatment control part 20 when treating capacity or more of BOD in the aeration vessel 6, is detected by the BOD detection part 19. Next, a part of dirty water stored in the vessel 1, is pumped up in the regulation water vessel 9 by the underwater pump 10 and is supplied to the vessel 6 through the water supply tube 11. At this time, the operation time of the pump 10 and opening degree of the valve 12, are ordered by the dirty water supply quantity control part 21 in the central control apparatus 18 so that BOD of water being supplied to the vessel 6 is in treatable degree in the vessel 6. Aeration treatment of the dirty water sent in the vessel 6, is performed by supplying the air and activated sludge by the control apparatus 22, 23 and the sludge is removed in the separation vessel 13. Thus, BOD of the sludge supplying to the vessel 6, is always kept at constant value or less and purifying treatment can be effectively performed.
COPYRIGHT: (C)1981,JPO&Japio
JP11417579A 1979-09-07 1979-09-07 Aeration apparatus Pending JPS5638182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11417579A JPS5638182A (en) 1979-09-07 1979-09-07 Aeration apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11417579A JPS5638182A (en) 1979-09-07 1979-09-07 Aeration apparatus

Publications (1)

Publication Number Publication Date
JPS5638182A true JPS5638182A (en) 1981-04-13

Family

ID=14631047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11417579A Pending JPS5638182A (en) 1979-09-07 1979-09-07 Aeration apparatus

Country Status (1)

Country Link
JP (1) JPS5638182A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245294A (en) * 1989-03-20 1990-10-01 Kiyokusui Planning:Kk Method for eliminating malodor in waste water treatment
JPH11347596A (en) * 1998-06-05 1999-12-21 Mitsubishi Electric Corp Apparatus for treating drainage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245294A (en) * 1989-03-20 1990-10-01 Kiyokusui Planning:Kk Method for eliminating malodor in waste water treatment
JPH11347596A (en) * 1998-06-05 1999-12-21 Mitsubishi Electric Corp Apparatus for treating drainage

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