JPS5738999A - Method for modification of excess sludge - Google Patents
Method for modification of excess sludgeInfo
- Publication number
- JPS5738999A JPS5738999A JP11496680A JP11496680A JPS5738999A JP S5738999 A JPS5738999 A JP S5738999A JP 11496680 A JP11496680 A JP 11496680A JP 11496680 A JP11496680 A JP 11496680A JP S5738999 A JPS5738999 A JP S5738999A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- gellike
- excess sludge
- dehydratability
- withdrawn
- 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
Abstract
PURPOSE: To improve the dehydratability of sludge without feeding any chemicals by blowing a proper amount of air or oxygen to the excess sludge having increased gellike materials withdrawn from a final sedimentation basin of a water treatment facilaty by an activated sludge method.
CONSTITUTION: If air is blown at, for example, 100W400air/l sludge amount for 10W30hr to the excess sludge having increased gellike mateials withdrawn from a final sedimentation basin, the greater part or part of the gellike materials are removed from the excess sludge by the biochemical reaction of the biological community such as germs which are the constituting factors for the excessive sludge and the mechanical effect of the blown gas. Thereby, the dehydratability of the sludge is improved and the subsequent dehydration operations are made easy.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496680A JPS5738999A (en) | 1980-08-20 | 1980-08-20 | Method for modification of excess sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496680A JPS5738999A (en) | 1980-08-20 | 1980-08-20 | Method for modification of excess sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5738999A true JPS5738999A (en) | 1982-03-03 |
Family
ID=14651035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11496680A Pending JPS5738999A (en) | 1980-08-20 | 1980-08-20 | Method for modification of excess sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5738999A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0471700A (en) * | 1990-07-13 | 1992-03-06 | Mitsubishi Kakoki Kaisha Ltd | Sludge treating device |
-
1980
- 1980-08-20 JP JP11496680A patent/JPS5738999A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0471700A (en) * | 1990-07-13 | 1992-03-06 | Mitsubishi Kakoki Kaisha Ltd | Sludge treating device |
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