JPS5613084A - Control unit of excess sludge flow rate - Google Patents
Control unit of excess sludge flow rateInfo
- Publication number
- JPS5613084A JPS5613084A JP8807179A JP8807179A JPS5613084A JP S5613084 A JPS5613084 A JP S5613084A JP 8807179 A JP8807179 A JP 8807179A JP 8807179 A JP8807179 A JP 8807179A JP S5613084 A JPS5613084 A JP S5613084A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- weight
- stagnating
- basin
- tank
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
Abstract
PURPOSE: A control unit of excess sludge flow rate which is able to maintain the weight of the sludge stagnating in the system always at a proper value with ease by obtaining the weight of the sludge stagnating in a final sedimentation basin accurately through calculation and obtaining the measured value of the weight of the sludge in an aeration tank etc.
CONSTITUTION: This control unit for excess sludge flow rate is provided with an aeration tank 2 supplying waste water, activated sludge and air and a final sedimentation basin 3 making solid-liquid separation of the mixed liquid flowing out from this tank 2 into treated water and activated sludge. The activated sludge accumulated in the bottom of the basin 3 is drawn and part thereof is returned 4 into the tank 2. The excess activated sludge is discharged 9 to outside the system. Next, the weight of the sludge stagnating in the basin 3 is accurately obtained through calculation based on the model of the basin 3 and the weight of the sludge in the tank 2 etc. is obtained by measuring MLSS concentration etc. From these calculated value and measured value, the weight of the sludge stangating in the system are accurately and easily obtained whereby the weight of the stagnating sludge is maintained at a proper value at all times.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8807179A JPS5613084A (en) | 1979-07-13 | 1979-07-13 | Control unit of excess sludge flow rate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8807179A JPS5613084A (en) | 1979-07-13 | 1979-07-13 | Control unit of excess sludge flow rate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5613084A true JPS5613084A (en) | 1981-02-07 |
Family
ID=13932612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8807179A Pending JPS5613084A (en) | 1979-07-13 | 1979-07-13 | Control unit of excess sludge flow rate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5613084A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6248207A (en) * | 1985-08-27 | 1987-03-02 | 名東電気工事株式会社 | Hanger wheel for aerial wire |
-
1979
- 1979-07-13 JP JP8807179A patent/JPS5613084A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6248207A (en) * | 1985-08-27 | 1987-03-02 | 名東電気工事株式会社 | Hanger wheel for aerial wire |
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