JPS56150487A - Disposal of sewage - Google Patents

Disposal of sewage

Info

Publication number
JPS56150487A
JPS56150487A JP5424480A JP5424480A JPS56150487A JP S56150487 A JPS56150487 A JP S56150487A JP 5424480 A JP5424480 A JP 5424480A JP 5424480 A JP5424480 A JP 5424480A JP S56150487 A JPS56150487 A JP S56150487A
Authority
JP
Japan
Prior art keywords
sludge
vessel
anaerobic
water
aerating
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.)
Granted
Application number
JP5424480A
Other languages
Japanese (ja)
Other versions
JPS5940079B2 (en
Inventor
Tetsuro Fukase
Masahide Shibata
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP55054244A priority Critical patent/JPS5940079B2/en
Publication of JPS56150487A publication Critical patent/JPS56150487A/en
Publication of JPS5940079B2 publication Critical patent/JPS5940079B2/en
Expired 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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To reduce the out-flow of phosphorus from excess sludge, by subjecting the excess sludge to anaerobic and aerobic treatments, and then aerating and dehydrating the excess sludge.
CONSTITUTION: Stock water 7 and return sludge 8 are introduced into an anaerobic vessel 1, and anaerobically treated there. The water and the sludge are then introduced into an aerobic vessel 2, and aerated there. Thereafter, the water and the sludge are separated into a solid part and a liquid part in a sedimentation vessel 3. The supernatant liquid is drained as a purified water 9. A part of the separated active sludge 10 is returned as return sludge 8 to the anaerobic vessel 1. The remaining excess sludge 11 is reserved in a reservoir 4 in an anaerobic atmosphere, aerated in a sludge-aerating vessel 5, and dehydrated by a dehydrator 6. In this case, the phosphorus discharged in the reservoir 4 is taken up again in the sludge by the aeration in the sludge-aerating vessel 5. Consequently, the phosphorus is not transferred into a filtrate formed in the dehydrating step.
COPYRIGHT: (C)1981,JPO&Japio
JP55054244A 1980-04-25 1980-04-25 Sewage treatment method Expired JPS5940079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55054244A JPS5940079B2 (en) 1980-04-25 1980-04-25 Sewage treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55054244A JPS5940079B2 (en) 1980-04-25 1980-04-25 Sewage treatment method

Publications (2)

Publication Number Publication Date
JPS56150487A true JPS56150487A (en) 1981-11-20
JPS5940079B2 JPS5940079B2 (en) 1984-09-27

Family

ID=12965123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55054244A Expired JPS5940079B2 (en) 1980-04-25 1980-04-25 Sewage treatment method

Country Status (1)

Country Link
JP (1) JPS5940079B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995997A (en) * 1982-11-22 1984-06-02 Hitachi Plant Eng & Constr Co Ltd Biologically dephosphorizing method of waste water
JPS59112900A (en) * 1982-12-21 1984-06-29 Ebara Infilco Co Ltd Treatment of organic waste water
JPS59115799A (en) * 1982-12-22 1984-07-04 Ebara Infilco Co Ltd Treatment of organic sludge
JPS6044095A (en) * 1983-08-19 1985-03-08 Ebara Infilco Co Ltd Treatment of organic waste liquid
JPS60110398A (en) * 1983-11-21 1985-06-15 Kurita Water Ind Ltd Biological treatment apparatus of sewage
JPS60248300A (en) * 1984-05-22 1985-12-07 Otsuka Chem Co Ltd Treatment of sludge
JPS60251999A (en) * 1984-05-29 1985-12-12 Kurita Water Ind Ltd Treatment of sludge
JPS61149294A (en) * 1984-12-21 1986-07-07 Japan Organo Co Ltd Treatment of sludge
JP2008246484A (en) * 2008-06-09 2008-10-16 Ebara Corp Method and apparatus for treating organic waste water

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129798B2 (en) * 1982-11-22 1986-07-09 Hitachi Plant Eng & Constr Co
JPS5995997A (en) * 1982-11-22 1984-06-02 Hitachi Plant Eng & Constr Co Ltd Biologically dephosphorizing method of waste water
JPS59112900A (en) * 1982-12-21 1984-06-29 Ebara Infilco Co Ltd Treatment of organic waste water
JPS59115799A (en) * 1982-12-22 1984-07-04 Ebara Infilco Co Ltd Treatment of organic sludge
JPS6044095A (en) * 1983-08-19 1985-03-08 Ebara Infilco Co Ltd Treatment of organic waste liquid
JPS6356839B2 (en) * 1983-08-19 1988-11-09 Ebara Infilco
JPS6134878B2 (en) * 1983-11-21 1986-08-09 Kurita Water Ind Ltd
JPS60110398A (en) * 1983-11-21 1985-06-15 Kurita Water Ind Ltd Biological treatment apparatus of sewage
JPS60248300A (en) * 1984-05-22 1985-12-07 Otsuka Chem Co Ltd Treatment of sludge
JPH0148840B2 (en) * 1984-05-22 1989-10-20 Ootsuka Kagaku Kk
JPS60251999A (en) * 1984-05-29 1985-12-12 Kurita Water Ind Ltd Treatment of sludge
JPS61149294A (en) * 1984-12-21 1986-07-07 Japan Organo Co Ltd Treatment of sludge
JPH0477639B2 (en) * 1984-12-21 1992-12-08 Organo Kk
JP2008246484A (en) * 2008-06-09 2008-10-16 Ebara Corp Method and apparatus for treating organic waste water

Also Published As

Publication number Publication date
JPS5940079B2 (en) 1984-09-27

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