JPS56139189A - Concentrating method of sludge and its apparatus - Google Patents
Concentrating method of sludge and its apparatusInfo
- Publication number
- JPS56139189A JPS56139189A JP4331880A JP4331880A JPS56139189A JP S56139189 A JPS56139189 A JP S56139189A JP 4331880 A JP4331880 A JP 4331880A JP 4331880 A JP4331880 A JP 4331880A JP S56139189 A JPS56139189 A JP S56139189A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- zone
- floating
- floating sludge
- flow amount
- 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
Abstract
PURPOSE: To continuously extract a sludge of a high concentration under a stable condition, by controlling a discharge flow amount of a water separated from a floating sludge on the bases of a sludge flow amount and a sludge concentration, and concentrating the sludge in a pressurized floatation process.
CONSTITUTION: When a lower boundary gauge 7 detects the lower surface of a floating sludge zone 6, a controller 10 controls a flow amount control valve 9 so as to decrease the discharge amount of a separated water. When an upper boundary gauge 8 detects the lower surface of the floating sludge zone 6, the discharge amount of the separated water is increased in the same manner. That is, the lower surface of the floating sludge zone 6 is constantly controlled at a level between the lower boundary gauge 7 and the upper boundary gauge 8. Consequently, the lower surface of the floating sludge zone 6 is kept at a predetermined level in a floatation concentration tank 3, so that the sludge of a high concentration can be continuously extracted under a stable condition.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4331880A JPS6029318B2 (en) | 1980-04-02 | 1980-04-02 | Sludge thickening method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4331880A JPS6029318B2 (en) | 1980-04-02 | 1980-04-02 | Sludge thickening method and device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7632784A Division JPS59230688A (en) | 1984-04-16 | 1984-04-16 | Sludge concentrating method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56139189A true JPS56139189A (en) | 1981-10-30 |
JPS6029318B2 JPS6029318B2 (en) | 1985-07-10 |
Family
ID=12660451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4331880A Expired JPS6029318B2 (en) | 1980-04-02 | 1980-04-02 | Sludge thickening method and device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6029318B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5706134A (en) * | 1919-06-22 | 1998-01-06 | Keiwa Shoko Kabushiki Kaisha | Light-diffusing sheet member |
US8691089B2 (en) * | 2009-08-11 | 2014-04-08 | Anaergia Inc. | Method for separating suspended solids from a waste fluid |
-
1980
- 1980-04-02 JP JP4331880A patent/JPS6029318B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5706134A (en) * | 1919-06-22 | 1998-01-06 | Keiwa Shoko Kabushiki Kaisha | Light-diffusing sheet member |
US8691089B2 (en) * | 2009-08-11 | 2014-04-08 | Anaergia Inc. | Method for separating suspended solids from a waste fluid |
Also Published As
Publication number | Publication date |
---|---|
JPS6029318B2 (en) | 1985-07-10 |
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