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JPS57107294A - Dephosphorization method using organisms - Google Patents

Dephosphorization method using organisms

Info

Publication number
JPS57107294A
JPS57107294A JP55188315A JP18831580A JPS57107294A JP S57107294 A JPS57107294 A JP S57107294A JP 55188315 A JP55188315 A JP 55188315A JP 18831580 A JP18831580 A JP 18831580A JP S57107294 A JPS57107294 A JP S57107294A
Authority
JP
Japan
Prior art keywords
phosphorus
supernatant
contg
outside
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
JP55188315A
Other languages
Japanese (ja)
Inventor
Michio Dazai
Norio Fuutai
Yoshimasa Takahara
Seiichi Fukuoka
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP55188315A priority Critical patent/JPS57107294A/en
Publication of JPS57107294A publication Critical patent/JPS57107294A/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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To shift phosphorus to supernatant, remove the supernatant to the outside of the system and remove the phosphorus in waste water efficiently by subjecting the waste water contg. phosphorus to limited aeration, and releasing the treated water then keeping the mixed liquids in the vessel still for a prescribed time, thence keeping the same still after stirring.
CONSTITUTION: Waste water is treated by a batch type activated sludge method, and after the treated water is released, the mixed liquids in the vessel contg. activated sludge are kept still for ≥3W4hr and are exposed to anaerobic conditions, whereby the phosphorus taken into the activated sludge is released to the outside of fungus bodies. Thence, the liquid is subjected to ventilated stirring or mechanical stirring for a short time to shift the phosphorus to the supernatant, and after it is kept still for a while, the supernatant contg. phosphorus at a high concn. is removed to the outside of the system.
COPYRIGHT: (C)1982,JPO&Japio
JP55188315A 1980-12-26 1980-12-26 Dephosphorization method using organisms Pending JPS57107294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188315A JPS57107294A (en) 1980-12-26 1980-12-26 Dephosphorization method using organisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188315A JPS57107294A (en) 1980-12-26 1980-12-26 Dephosphorization method using organisms

Publications (1)

Publication Number Publication Date
JPS57107294A true JPS57107294A (en) 1982-07-03

Family

ID=16221445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188315A Pending JPS57107294A (en) 1980-12-26 1980-12-26 Dephosphorization method using organisms

Country Status (1)

Country Link
JP (1) JPS57107294A (en)

Cited By (2)

* 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 Biological dephosphorization method of wastewater
JPS61227895A (en) * 1985-04-02 1986-10-09 Tsukishima Kikai Co Ltd Process for batch system activated sludge treatment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process

Cited By (3)

* 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 Biological dephosphorization method of wastewater
JPS6129798B2 (en) * 1982-11-22 1986-07-09 Hitachi Plant Eng & Constr Co
JPS61227895A (en) * 1985-04-02 1986-10-09 Tsukishima Kikai Co Ltd Process for batch system activated sludge treatment

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