JPS5684695A - Sewage treatment method - Google Patents
Sewage treatment methodInfo
- Publication number
- JPS5684695A JPS5684695A JP16233279A JP16233279A JPS5684695A JP S5684695 A JPS5684695 A JP S5684695A JP 16233279 A JP16233279 A JP 16233279A JP 16233279 A JP16233279 A JP 16233279A JP S5684695 A JPS5684695 A JP S5684695A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- settling
- pipe
- treatment
- 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
Links
- 239000010865 sewage Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000007787 solid Substances 0.000 abstract 4
- 239000007788 liquid Substances 0.000 abstract 2
- 238000012216 screening Methods 0.000 abstract 2
- 239000010802 sludge Substances 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To obviate the occurrence of inconvenience with the increase in MLSS by separating solid contained in sewage in the stage before entering a biochemical treatment process thereby effectively treating the same.
CONSTITUTION: Sewage part a coarse mesh screen 1 receives separation of small solids by a fine mesh screen 2, and is introduced into an aerating tank 3 for the purpose of biological treatment. The liquid having received aeration is supplied to a settling tank 4, and part of the activated sludge having been settled and separated is returned as return sludge into the aerating tank 3. The remainder is sent together with screenings to a screenings treatment tank 5 through a pipe 14. In a settling chamber 15, the settling and separating of the solids contained in the liquid shifted from the pipe 14 are accomplished and the separated solids settle in an anaerobic digesting chamber 16 through the opening provided at the bottom end of a cylindrical body 13. The supernatant produced in the settling chamber 15 is sent through a pipe 17 to the aerating tank 3. In this way, the load of biochemical treatment is considerably decreased and the treatment efficiency is improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16233279A JPS5684695A (en) | 1979-12-13 | 1979-12-13 | Sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16233279A JPS5684695A (en) | 1979-12-13 | 1979-12-13 | Sewage treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5684695A true JPS5684695A (en) | 1981-07-10 |
| JPS6325840B2 JPS6325840B2 (en) | 1988-05-26 |
Family
ID=15752525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16233279A Granted JPS5684695A (en) | 1979-12-13 | 1979-12-13 | Sewage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5684695A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884096A (en) * | 1981-11-13 | 1983-05-20 | Ebara Infilco Co Ltd | Digesting and denitrifying method for night soil sewage |
| JP2001252685A (en) * | 2000-03-13 | 2001-09-18 | Sumitomo Heavy Ind Ltd | Methane fermentation treatment device |
| JP2010155184A (en) * | 2008-12-26 | 2010-07-15 | Nishihara Environment Technology Inc | Support feeding type biological reaction apparatus |
-
1979
- 1979-12-13 JP JP16233279A patent/JPS5684695A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884096A (en) * | 1981-11-13 | 1983-05-20 | Ebara Infilco Co Ltd | Digesting and denitrifying method for night soil sewage |
| JP2001252685A (en) * | 2000-03-13 | 2001-09-18 | Sumitomo Heavy Ind Ltd | Methane fermentation treatment device |
| JP2010155184A (en) * | 2008-12-26 | 2010-07-15 | Nishihara Environment Technology Inc | Support feeding type biological reaction apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325840B2 (en) | 1988-05-26 |
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