JPS56126491A - Biological treatment of wastewater - Google Patents
Biological treatment of wastewaterInfo
- Publication number
- JPS56126491A JPS56126491A JP2935680A JP2935680A JPS56126491A JP S56126491 A JPS56126491 A JP S56126491A JP 2935680 A JP2935680 A JP 2935680A JP 2935680 A JP2935680 A JP 2935680A JP S56126491 A JPS56126491 A JP S56126491A
- Authority
- JP
- Japan
- Prior art keywords
- air
- propeller
- discharged
- tank
- diffusing cylinder
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To make it easier to perform switching of anaerobic and aerobic conditions and to improve the operation control in a biochemical treatment device having a set of two reacting tanks and one settling tank, by contriving an under water aerating-agitating mechanism so as to be used for both aerating and agitating.
CONSTITUTION: When the agitation of anaerobic atmosphere is performed, the water brought up by propeller 23 is introduced into draught tube 24 and then forcibly discharged a little upward from the whole periphery and the inside of tank is agitated like a convection circulation. Moreover, when the aeration of aerobic atmosphere is performed, air diffusing cylinder 25 of porous basket type rotates along with propeller 23, and the air is introduced through air pipe 26 and discharged into air diffusing cylinder 25. Then, rotating air diffusing cylinder 25 shears and breaks the air into minute bubbles, and the bubbles are sucked by propeller 23 together with wastewater in the tank and then discharged. Thus a complete gas-liquid contact mixing aeration is performed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2935680A JPS56126491A (en) | 1980-03-08 | 1980-03-08 | Biological treatment of wastewater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2935680A JPS56126491A (en) | 1980-03-08 | 1980-03-08 | Biological treatment of wastewater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56126491A true JPS56126491A (en) | 1981-10-03 |
Family
ID=12273915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2935680A Pending JPS56126491A (en) | 1980-03-08 | 1980-03-08 | Biological treatment of wastewater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56126491A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62244496A (en) * | 1986-04-16 | 1987-10-24 | Ebara Res Co Ltd | Treatment of waste water |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222356A (en) * | 1975-08-13 | 1977-02-19 | Nishihara Environ Sanit Res Corp | Digesting process of contaminated organic liquid and equipment therefo r |
JPS5421049A (en) * | 1977-07-19 | 1979-02-16 | Blum Albert | Method of and device for introducing air into liquid |
JPS553845A (en) * | 1978-06-23 | 1980-01-11 | Kawasaki Heavy Ind Ltd | Biological treating method and apparatus for waste water |
-
1980
- 1980-03-08 JP JP2935680A patent/JPS56126491A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222356A (en) * | 1975-08-13 | 1977-02-19 | Nishihara Environ Sanit Res Corp | Digesting process of contaminated organic liquid and equipment therefo r |
JPS5421049A (en) * | 1977-07-19 | 1979-02-16 | Blum Albert | Method of and device for introducing air into liquid |
JPS553845A (en) * | 1978-06-23 | 1980-01-11 | Kawasaki Heavy Ind Ltd | Biological treating method and apparatus for waste water |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62244496A (en) * | 1986-04-16 | 1987-10-24 | Ebara Res Co Ltd | Treatment of waste water |
JPH0318958B2 (en) * | 1986-04-16 | 1991-03-13 | Ebara Sogo Kenkyusho Kk |
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