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JPS57144092A - Treatment of liquid desorbed from night soil - Google Patents

Treatment of liquid desorbed from night soil

Info

Publication number
JPS57144092A
JPS57144092A JP2951381A JP2951381A JPS57144092A JP S57144092 A JPS57144092 A JP S57144092A JP 2951381 A JP2951381 A JP 2951381A JP 2951381 A JP2951381 A JP 2951381A JP S57144092 A JPS57144092 A JP S57144092A
Authority
JP
Japan
Prior art keywords
water
tank
treatment
treated water
solids
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
JP2951381A
Other languages
Japanese (ja)
Other versions
JPS643556B2 (en
Inventor
Kaoru Chigusa
Yutaka Takemoto
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.)
Nishihara Environment Co Ltd
Original Assignee
Nishihara Environmental Sanitation Research 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 Nishihara Environmental Sanitation Research Corp filed Critical Nishihara Environmental Sanitation Research Corp
Priority to JP2951381A priority Critical patent/JPS57144092A/en
Publication of JPS57144092A publication Critical patent/JPS57144092A/en
Publication of JPS643556B2 publication Critical patent/JPS643556B2/ja
Granted 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 obtain good treated water without forming colloid in the treated water by subjecting the treated liquid which is produced through anaerobic digestion treatment of night soil to centrifugal filtration and concentrator then to aerobic biological treatment in the beds stuck with living things.
CONSTITUTION: The desorbed water produced by the anaerobic digestion treatment of night soil is first introduced into a centrifugal filter and concentrator 1, where it is separated of solids, and SS are discharged as excess sludge. The filtrate is fed to the next biological sticking tank 2. Diluting water and circulation water are added to the filtrate. Oxygen is supplied by a means for aeration or the like in the tank 2, and an aerobic biological treatment is accomplished by the beds immobilized with living things. The liquid passed through the tank 2 is introduced into a settling basin 3, where solids are settled and separated. The settled solids are discharged as exess sludge, and the supernatant is taken out as treated water. Part thereof is returned as circulation water to the tank 2. It is equally well to return the treated water prior to inflow into the basin 3.
COPYRIGHT: (C)1982,JPO&Japio
JP2951381A 1981-03-02 1981-03-02 Treatment of liquid desorbed from night soil Granted JPS57144092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2951381A JPS57144092A (en) 1981-03-02 1981-03-02 Treatment of liquid desorbed from night soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2951381A JPS57144092A (en) 1981-03-02 1981-03-02 Treatment of liquid desorbed from night soil

Publications (2)

Publication Number Publication Date
JPS57144092A true JPS57144092A (en) 1982-09-06
JPS643556B2 JPS643556B2 (en) 1989-01-23

Family

ID=12278172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2951381A Granted JPS57144092A (en) 1981-03-02 1981-03-02 Treatment of liquid desorbed from night soil

Country Status (1)

Country Link
JP (1) JPS57144092A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6265795A (en) * 1985-09-19 1987-03-25 Mitsubishi Heavy Ind Ltd Treatment of high concentration waste water
JPH0487959U (en) * 1990-12-13 1992-07-30
JP2011092942A (en) * 2011-02-17 2011-05-12 Kurita Water Ind Ltd Nitrogen-containing wastewater treatment method and treatment apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6265795A (en) * 1985-09-19 1987-03-25 Mitsubishi Heavy Ind Ltd Treatment of high concentration waste water
JPH0487959U (en) * 1990-12-13 1992-07-30
JP2011092942A (en) * 2011-02-17 2011-05-12 Kurita Water Ind Ltd Nitrogen-containing wastewater treatment method and treatment apparatus

Also Published As

Publication number Publication date
JPS643556B2 (en) 1989-01-23

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