JPS5524574A - Treating method in continuous type activated sludge system - Google Patents
Treating method in continuous type activated sludge systemInfo
- Publication number
- JPS5524574A JPS5524574A JP9800078A JP9800078A JPS5524574A JP S5524574 A JPS5524574 A JP S5524574A JP 9800078 A JP9800078 A JP 9800078A JP 9800078 A JP9800078 A JP 9800078A JP S5524574 A JPS5524574 A JP S5524574A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- sludge
- waste water
- activated sludge
- continuous type
- 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 control swell of sludge and to efficiently treat org. waste water using a continuous type activated sludge treating system by mixing return sludge from a settling vessel with part or all of the waste water in the absence of oxygen while agitating to destroy filamentous fungi.
CONSTITUTION: Sewage W1 is fed into mixing tank 1b with raw water pump 3 through raw water flow rate regulation tank 1a. In tank 1b sewage W1 is mixed with return sludge from settling vessel 2a in the absence of oxygen while agitating for 1W4hr to destory filamentous fungi in the sludge. The mixt, is then fed into aeration tank 1c to well digest BOD constituents by aeration, and the overflow is introduced into vessel 2a to settle sludge, which is repeatedly returned to tank 1b with air lift pump 7. Clean supernatant W2 is drained through water tank 2b. In tank 1b activated sludge contg. no filamentous fungus exhibits good settleability, resulting in efficient waste water treatment.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9800078A JPS5524574A (en) | 1978-08-11 | 1978-08-11 | Treating method in continuous type activated sludge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9800078A JPS5524574A (en) | 1978-08-11 | 1978-08-11 | Treating method in continuous type activated sludge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5524574A true JPS5524574A (en) | 1980-02-21 |
Family
ID=14207384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9800078A Pending JPS5524574A (en) | 1978-08-11 | 1978-08-11 | Treating method in continuous type activated sludge system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2640724A1 (en) * | 1988-12-16 | 1990-06-22 | Saps Anticorrosion | Improved process and installation for destroying filamentous proliferation. |
| JPH04131193A (en) * | 1990-09-25 | 1992-05-01 | Shikoku Chem Corp | Elimination of filamentous bulking in waste water treatment |
-
1978
- 1978-08-11 JP JP9800078A patent/JPS5524574A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2640724A1 (en) * | 1988-12-16 | 1990-06-22 | Saps Anticorrosion | Improved process and installation for destroying filamentous proliferation. |
| JPH04131193A (en) * | 1990-09-25 | 1992-05-01 | Shikoku Chem Corp | Elimination of filamentous bulking in waste water treatment |
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