JPS55102495A - Excess sluge drawing control in sewage treatment plant - Google Patents
Excess sluge drawing control in sewage treatment plantInfo
- Publication number
- JPS55102495A JPS55102495A JP912679A JP912679A JPS55102495A JP S55102495 A JPS55102495 A JP S55102495A JP 912679 A JP912679 A JP 912679A JP 912679 A JP912679 A JP 912679A JP S55102495 A JPS55102495 A JP S55102495A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- excess
- excess sludge
- pit
- sedimentation basin
- 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
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: To raise the efficiency of polluted water treatment by automatically controlling the amount of excess sludge to be drawn out by monitoring only two items, the sludge interface level of final sedimentation basin and the sludge concentration of sludge pit.
CONSTITUTION: In a sewage treatment plant, the sludge interface level meter 31 for the final sedimentation basin 2 and the sludge densitometer 32 for measuring the sludge concentration of the sludge pit 3 are provided. And, the signals of the excess sludge flow meter 30, the level meter 31, the densitometer 32, and the state of the excess sludge drawing pumps P1, P2,...Pn(failure or others) are put in the arithemetic control unit through the signal lines 40, 42, 43, and 44. Then, from the input values, the sludge interface level in the sedimentation basin 2 and the daily average value of sludge concentration of the pit 3 are obtained, and from the daily average value and the excess sludge drawn actual value of that day, the excess sludge drawing amount target value for the next day is determined and an operation-start/stop signal is delivered to the pumps P1WPn through the line 44 so as to draw out excess sludge by dividing into the preset time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54009126A JPS588314B2 (en) | 1979-01-31 | 1979-01-31 | Excess sludge extraction control system for sewage treatment plants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54009126A JPS588314B2 (en) | 1979-01-31 | 1979-01-31 | Excess sludge extraction control system for sewage treatment plants |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55102495A true JPS55102495A (en) | 1980-08-05 |
JPS588314B2 JPS588314B2 (en) | 1983-02-15 |
Family
ID=11711932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54009126A Expired JPS588314B2 (en) | 1979-01-31 | 1979-01-31 | Excess sludge extraction control system for sewage treatment plants |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS588314B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0524279Y2 (en) * | 1989-11-13 | 1993-06-21 |
-
1979
- 1979-01-31 JP JP54009126A patent/JPS588314B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS588314B2 (en) | 1983-02-15 |
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