JPS57117390A - Apparatus for controlling activated sludge - Google Patents
Apparatus for controlling activated sludgeInfo
- Publication number
- JPS57117390A JPS57117390A JP56003866A JP386681A JPS57117390A JP S57117390 A JPS57117390 A JP S57117390A JP 56003866 A JP56003866 A JP 56003866A JP 386681 A JP386681 A JP 386681A JP S57117390 A JPS57117390 A JP S57117390A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- amount
- operator
- return
- controller
- 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
- Control Of Non-Electrical Variables (AREA)
- Activated Sludge Processes (AREA)
Abstract
PURPOSE: To carry out sewage treatment stably by constituting the titled apparatus from an operator for a return sludge concn. and an accumulated amount of activated sludge in a final precipitation basin and a controller calculating an operation deviation amount of a return sludge amount to keep treatment effect due to the activated sludge high.
CONSTITUTION: Concentrated sludge precipitated in a precipitation basin is collected in a hopper 5 by a scraper 4 and sludge withdrawn through a withdrawing pipe 6 is stored in a sludge storage tank 8. A signal measured by a flow meter 2 and a MLSS meter 13 in an aeration tank is sent to a first operator 14 for calculating a return sludge concn. and a precipitation basin sludge accumulation amount. A first controller 15 for adjusting a return sludge flow amount from deviation of the value of the precipitation basin sludge accumulation amount calculated by the first operator 14 and an objective value thereof and a second controller 16 for adjusting the return sludge flow amount so as to minimize deviation from an indication value of the MLSS meter of the aeration tank and a set value thereof are installed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003866A JPS57117390A (en) | 1981-01-16 | 1981-01-16 | Apparatus for controlling activated sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56003866A JPS57117390A (en) | 1981-01-16 | 1981-01-16 | Apparatus for controlling activated sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57117390A true JPS57117390A (en) | 1982-07-21 |
Family
ID=11569109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56003866A Pending JPS57117390A (en) | 1981-01-16 | 1981-01-16 | Apparatus for controlling activated sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57117390A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57156087A (en) * | 1981-03-24 | 1982-09-27 | Toshiba Corp | Operating system for sewage treatment system by activated sludge method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5343955A (en) * | 1976-10-01 | 1978-04-20 | Hitachi Ltd | Control device for activated sludge water treatment works |
-
1981
- 1981-01-16 JP JP56003866A patent/JPS57117390A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5343955A (en) * | 1976-10-01 | 1978-04-20 | Hitachi Ltd | Control device for activated sludge water treatment works |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57156087A (en) * | 1981-03-24 | 1982-09-27 | Toshiba Corp | Operating system for sewage treatment system by activated sludge method |
JPH0147238B2 (en) * | 1981-03-24 | 1989-10-12 | Tokyo Shibaura Electric Co |
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