JPS6422400A - Waste water treatment - Google Patents
Waste water treatmentInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-07-18 JP JP17819787A patent/JPS6422400A/en active Pending
Patent Citations (3)
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)
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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