JPS5621691A - Water treating method - Google Patents

Water treating method

Info

Publication number
JPS5621691A
JPS5621691A JP9624779A JP9624779A JPS5621691A JP S5621691 A JPS5621691 A JP S5621691A JP 9624779 A JP9624779 A JP 9624779A JP 9624779 A JP9624779 A JP 9624779A JP S5621691 A JPS5621691 A JP S5621691A
Authority
JP
Japan
Prior art keywords
aeration
treated water
activated sludge
precipitation
tank
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
JP9624779A
Other languages
Japanese (ja)
Inventor
Tadaaki Kawasugi
Taketoshi Madokoro
Toyoshige Morimoto
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP9624779A priority Critical patent/JPS5621691A/en
Publication of JPS5621691A publication Critical patent/JPS5621691A/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

  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

PURPOSE: To carry out a biological treatment effectively as well as improve precipitation and separation properties of an activated sludge by a method wherein minute air bubbles adhered to the activated sludge in treated water from an aeration deep tank and separated by aeration and, thereafter, activated sludge is precipitated and separated.
CONSTITUTION: The treated water from an aeration deep tank 7 is introduced into an aeration tank 11 of an aeration apparatus 8 through a take-out pipe 10 of the treated water. An oxygen containing gas is introduced to a pipe 12 through an air supply pipe 14 from a blower 13 and injected from an upwardly direction nozzle to circulate and flow the treated water in the tank 11 as well as to carry out the aeration treatment of the treated water. Then, minute air bubbles adhered to activated sludge contained in the treated water during the aeration procedure in the deep tank and separated. Thereby, the precipitation of activated sludge is promoted and the precipitation and separation can be carried out efficiently in a precipitation and separation apparatus 9. Then, the purified treated water is taken out to a post-treating apparatus 19 and a portion of the precipitated sludge is returned by a pipe 5.
COPYRIGHT: (C)1981,JPO&Japio
JP9624779A 1979-07-27 1979-07-27 Water treating method Pending JPS5621691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9624779A JPS5621691A (en) 1979-07-27 1979-07-27 Water treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9624779A JPS5621691A (en) 1979-07-27 1979-07-27 Water treating method

Publications (1)

Publication Number Publication Date
JPS5621691A true JPS5621691A (en) 1981-02-28

Family

ID=14159882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9624779A Pending JPS5621691A (en) 1979-07-27 1979-07-27 Water treating method

Country Status (1)

Country Link
JP (1) JPS5621691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082527A (en) * 1983-10-12 1985-05-10 Taiyo Chuki Kk Method and device for cleaning the transport pipe of a pneumatic conveyor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142356A (en) * 1974-10-08 1976-04-09 Mitsubishi Heavy Ind Ltd Katsuseiodeinyoru haisuishoriho
JPS5161178A (en) * 1974-11-22 1976-05-27 Maruzen Oil Co Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142356A (en) * 1974-10-08 1976-04-09 Mitsubishi Heavy Ind Ltd Katsuseiodeinyoru haisuishoriho
JPS5161178A (en) * 1974-11-22 1976-05-27 Maruzen Oil Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082527A (en) * 1983-10-12 1985-05-10 Taiyo Chuki Kk Method and device for cleaning the transport pipe of a pneumatic conveyor

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