JPS5597291A - Control of returned sludge amount - Google Patents
Control of returned sludge amountInfo
- Publication number
- JPS5597291A JPS5597291A JP335379A JP335379A JPS5597291A JP S5597291 A JPS5597291 A JP S5597291A JP 335379 A JP335379 A JP 335379A JP 335379 A JP335379 A JP 335379A JP S5597291 A JPS5597291 A JP S5597291A
- Authority
- JP
- Japan
- Prior art keywords
- detector
- amount
- return sludge
- target value
- sewage
- 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 obtain treated water of stable quality by a controlling method in which the target value of floating solids is changed proportionally to the organic substance load of incoming sewage, and when the organic substance load is abnormally high, the target value is controlled to less than the upper limit value.
CONSTITUTION: Sewage is flowed through the sewage inlet path 1 into the aeration tank 2 and then sent through the polluted water outlet path 3 to the final sedimentation basin 4 from which treated water is overflowed through the overflow path 5 and also sediment sludge is sent back to the aeration tank 2 while be pressurized by the return sludge pump 7 through the sludge pipe 6 and also while being regulated its flow rate by the regultaing valve 8. The incoming sewage amount is put in the arithmetic controller 15 by the detector 9, the total organic carbon amount is by the total carbon amount detector 10, the floating solid in the aeration tank 2 is by the detector 11, the return sludge amount is by the detector 12, and the return sludge concentration is by the detector 13. The arithmetic controller 14 performs a calculation on these information and then gives the target value of return sludge amount to the controller 15 from which a control output is sent to the return sludge pump 7 and the control valve 8 to realize the target value of return sludge amount.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP335379A JPS5597291A (en) | 1979-01-18 | 1979-01-18 | Control of returned sludge amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP335379A JPS5597291A (en) | 1979-01-18 | 1979-01-18 | Control of returned sludge amount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5597291A true JPS5597291A (en) | 1980-07-24 |
| JPS626880B2 JPS626880B2 (en) | 1987-02-13 |
Family
ID=11554979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP335379A Granted JPS5597291A (en) | 1979-01-18 | 1979-01-18 | Control of returned sludge amount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5597291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009154060A (en) * | 2007-12-25 | 2009-07-16 | Fuji Clean Kogyo Kk | Water quality monitoring system |
| JP2019051497A (en) * | 2017-09-19 | 2019-04-04 | 株式会社日立製作所 | Water treatment control device and water treatment system |
-
1979
- 1979-01-18 JP JP335379A patent/JPS5597291A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009154060A (en) * | 2007-12-25 | 2009-07-16 | Fuji Clean Kogyo Kk | Water quality monitoring system |
| JP2019051497A (en) * | 2017-09-19 | 2019-04-04 | 株式会社日立製作所 | Water treatment control device and water treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS626880B2 (en) | 1987-02-13 |
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