JPS571490A - Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage - Google Patents
Method and apparatus for automatical control of aeration in active sludge process for disposal of sewageInfo
- Publication number
- JPS571490A JPS571490A JP7489780A JP7489780A JPS571490A JP S571490 A JPS571490 A JP S571490A JP 7489780 A JP7489780 A JP 7489780A JP 7489780 A JP7489780 A JP 7489780A JP S571490 A JPS571490 A JP S571490A
- Authority
- JP
- Japan
- Prior art keywords
- aeration
- vessel
- amount
- detected
- sensor
- 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: To lower running cost, by automatically controlling an amount of necessary air in an aeration vessel on the bases of amounts of dissolved oxygen and suspensoid mass in the final aerating zone of the aeration vessel.
CONSTITUTION: An active sludge processing apparatus comprises a raw water reservoir 1, a raw water pump 2, an aeration vessel 3, a sedimentation vessel 4, a returned sludge pump 5 and air compressors 6, 7. The vessel 3 is provided with baffle walls 14. Automatic aeration-controlling means is arranged in the final aerating zone of the vessel 3. A mixed solution after aeration is s ucked up by a pump 10. An amount of residual oxygen in the solution after consumption is detected by a sensor 9 in a conduit. The detected value is fed to a controller 12. On the other hand, when the amount of residual dissolved oxygen detected by a sensor 8 at the inlet side of the final aerating zone lowers to a level of 1W4mg/l or so, the compressor 6 is driven by the controller 12. The controller 12 calculates an oxygen consumption rate from a difference between the values detected by the sensors 8 and 9 and a value detected by an active sludge amount sensor 13 at the same position of the sensor 8. When the oxygen consumption rate reaches the amount of endogenous respiration of the active sludge, the compressor 6 is stopped.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7489780A JPS571490A (en) | 1980-06-05 | 1980-06-05 | Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7489780A JPS571490A (en) | 1980-06-05 | 1980-06-05 | Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS571490A true JPS571490A (en) | 1982-01-06 |
Family
ID=13560634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7489780A Pending JPS571490A (en) | 1980-06-05 | 1980-06-05 | Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS571490A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02169095A (en) * | 1988-12-20 | 1990-06-29 | Hanshin Doryoku Kikai Kk | Treatment of sewage and controller |
JPH05139753A (en) * | 1991-11-20 | 1993-06-08 | Union Carbide Ind Gases Technol Corp | Ceiling mounting type auxiliary oxygen burner |
JP2008142626A (en) * | 2006-12-11 | 2008-06-26 | Matsushita Electric Ind Co Ltd | Method for controlling aeration tank |
JP2008168187A (en) * | 2007-01-10 | 2008-07-24 | Matsushita Electric Ind Co Ltd | Control method for aeration tank |
WO2009003800A1 (en) * | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
US20120267318A1 (en) * | 2011-04-20 | 2012-10-25 | Paul Hatten | Water treatment systems and methods |
-
1980
- 1980-06-05 JP JP7489780A patent/JPS571490A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02169095A (en) * | 1988-12-20 | 1990-06-29 | Hanshin Doryoku Kikai Kk | Treatment of sewage and controller |
JPH05139753A (en) * | 1991-11-20 | 1993-06-08 | Union Carbide Ind Gases Technol Corp | Ceiling mounting type auxiliary oxygen burner |
JP2008142626A (en) * | 2006-12-11 | 2008-06-26 | Matsushita Electric Ind Co Ltd | Method for controlling aeration tank |
JP2008168187A (en) * | 2007-01-10 | 2008-07-24 | Matsushita Electric Ind Co Ltd | Control method for aeration tank |
WO2009003800A1 (en) * | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
US20120267318A1 (en) * | 2011-04-20 | 2012-10-25 | Paul Hatten | Water treatment systems and methods |
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