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JPS5518266A - Treatment of waste water - Google Patents

Treatment of waste water

Info

Publication number
JPS5518266A
JPS5518266A JP9169378A JP9169378A JPS5518266A JP S5518266 A JPS5518266 A JP S5518266A JP 9169378 A JP9169378 A JP 9169378A JP 9169378 A JP9169378 A JP 9169378A JP S5518266 A JPS5518266 A JP S5518266A
Authority
JP
Japan
Prior art keywords
granular medium
tank
aerobic
adhered
waste water
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
JP9169378A
Other languages
Japanese (ja)
Inventor
Katsuyuki Kataoka
Shogo Tsunoda
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.)
Ebara Corp
Original Assignee
Ebara Infilco Co 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP9169378A priority Critical patent/JPS5518266A/en
Publication of JPS5518266A publication Critical patent/JPS5518266A/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

  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To permit the highly efficient treatment of waste water at lower cost by the procedure in which part of granular medium to which aerobic microorganisms are adhered is treated with unaerobic bacteria and then sent back to aerobic treatment portion for reuse.
CONSTITUTION: After removing BOD and NH4-N present in waste water by oxidation by means of an aerobic microorganisms-adhered granular medium in the aerobic biological treatment portion, th effluent is introduced into a biological denitricafition portion, whereupon part of the microorganism-adhered granular medium is treated in an unaerobic fermentation tank and then returned in parts to the denitrification portion and the aerobic biological treatment portion. For example, part of the microorganism-adhered granular medium 2 in the aerobic biological treatment tank 1 is introduced through the conduit 10 to the unaerobic fermentation tank 11 and stirred for several days. The microorganism film on the surface of the granular medium in the tank 11 is decayed and removed and slurry containing part of granular medium is then introduced through the conduit 13 into the biological denitrification tank 7, and remaining granular medium is sent back to the tank 1 through the return pipe 12.
COPYRIGHT: (C)1980,JPO&Japio
JP9169378A 1978-07-26 1978-07-26 Treatment of waste water Pending JPS5518266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9169378A JPS5518266A (en) 1978-07-26 1978-07-26 Treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9169378A JPS5518266A (en) 1978-07-26 1978-07-26 Treatment of waste water

Publications (1)

Publication Number Publication Date
JPS5518266A true JPS5518266A (en) 1980-02-08

Family

ID=14033583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9169378A Pending JPS5518266A (en) 1978-07-26 1978-07-26 Treatment of waste water

Country Status (1)

Country Link
JP (1) JPS5518266A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100313315B1 (en) * 1999-01-22 2001-11-05 이규남 Method and apparatus for treating sewage and organic waste-water by circulation and filter of 3 divided biofilm
KR20190007503A (en) 2017-04-17 2019-01-22 미쓰비시덴키 가부시키가이샤 Program writing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100313315B1 (en) * 1999-01-22 2001-11-05 이규남 Method and apparatus for treating sewage and organic waste-water by circulation and filter of 3 divided biofilm
KR20190007503A (en) 2017-04-17 2019-01-22 미쓰비시덴키 가부시키가이샤 Program writing device

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