JPS6422400A - Waste water treatment - Google Patents

Waste water treatment

Info

Publication number
JPS6422400A
JPS6422400A JP17819787A JP17819787A JPS6422400A JP S6422400 A JPS6422400 A JP S6422400A JP 17819787 A JP17819787 A JP 17819787A JP 17819787 A JP17819787 A JP 17819787A JP S6422400 A JPS6422400 A JP S6422400A
Authority
JP
Japan
Prior art keywords
liquid
vessel
waste water
thickened
centrifugal separator
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
JP17819787A
Other languages
Japanese (ja)
Inventor
Minoru Kodama
Akio Arai
Koichi Yamura
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.)
Kajima Corp
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP17819787A priority Critical patent/JPS6422400A/en
Publication of JPS6422400A publication Critical patent/JPS6422400A/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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

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

Abstract

PURPOSE:To increase the speed of a waste water treatment by hermetically communicating the waste water-microorganism mixture in a bioreaction vessel to a centrifugal separator, separating the mixture to a thickened liquid and clean liquid and hermetically returning the thickened liquid from the centrifugal separator to the bioreaction vessel. CONSTITUTION:The treated water in the liquid mixture 3 in the centrifugal separator 23 shifts to the clean liquid 25 and the greater part of the bacteria therein remain in the thickened liquid 24 and, therefore, the liquid 24 contains the bacteria at a high concn. The bacteria in the liquid 3 sent first to the centrifugal separator 23 by a circulation pump 22 are thickened and are returned to the bioreaction vessel 20 when the liquid 24 is returned to the vessel 20. The clean liquid 25 is discharged as treated water 6 through a water sealing device 26 in an ordinary operation. However, the liquid 25 is fed into the vessel 20 through a liquid level control valve 27 when the water level L in the vessel 20 is lowered by a decrease in the inflow rate of the waste water 1, etc.
JP17819787A 1987-07-18 1987-07-18 Waste water treatment Pending JPS6422400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17819787A JPS6422400A (en) 1987-07-18 1987-07-18 Waste water treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17819787A JPS6422400A (en) 1987-07-18 1987-07-18 Waste water treatment

Publications (1)

Publication Number Publication Date
JPS6422400A true JPS6422400A (en) 1989-01-25

Family

ID=16044280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17819787A Pending JPS6422400A (en) 1987-07-18 1987-07-18 Waste water treatment

Country Status (1)

Country Link
JP (1) JPS6422400A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663598A (en) * 1992-08-11 1994-03-08 Ebara Infilco Co Ltd Anaerobic treatment of organic waste
JP2008080274A (en) * 2006-09-28 2008-04-10 Kurita Water Ind Ltd Biological treatment apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879596A (en) * 1981-11-04 1983-05-13 Ebara Infilco Co Ltd Treatment for night soil and sludge of septic tank by mixing
JPS596996A (en) * 1982-07-02 1984-01-14 Ebara Infilco Co Ltd Treatment of organic filthy water of high concentration
JPS62160183A (en) * 1986-01-08 1987-07-16 Ebara Res Co Ltd Method for treating excretion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879596A (en) * 1981-11-04 1983-05-13 Ebara Infilco Co Ltd Treatment for night soil and sludge of septic tank by mixing
JPS596996A (en) * 1982-07-02 1984-01-14 Ebara Infilco Co Ltd Treatment of organic filthy water of high concentration
JPS62160183A (en) * 1986-01-08 1987-07-16 Ebara Res Co Ltd Method for treating excretion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663598A (en) * 1992-08-11 1994-03-08 Ebara Infilco Co Ltd Anaerobic treatment of organic waste
JP2008080274A (en) * 2006-09-28 2008-04-10 Kurita Water Ind Ltd Biological treatment apparatus

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