GB934146A - Improvements in or relating to the purification or treatment of sewage and other liquors - Google Patents
Improvements in or relating to the purification or treatment of sewage and other liquorsInfo
- Publication number
- GB934146A GB934146A GB3406559A GB3406559A GB934146A GB 934146 A GB934146 A GB 934146A GB 3406559 A GB3406559 A GB 3406559A GB 3406559 A GB3406559 A GB 3406559A GB 934146 A GB934146 A GB 934146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sludge
- section
- stage
- agitation
- opening
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
934,146. Activated sludge processes. ACTIVATED SLUDGE Ltd. Oct. 7. 1960 [Oct. 8 1959], No. 34065/59. Class 46. The three aerobic treatment stages, marked respectively stage 1, stage 2 and stage 3, are of similar construction although not necessarily of equal capacity, and each stage comprises a tank divided into an agitation zone 10 and a sludge separation zone 11 separated by a vertical division wall 12; while communication between stages is by weir 21. Communication between agitation section and the sludge separation section, for the return of sludge as hereinafter described, is provided by a narrow section 13 formed by a wall 14 located fairly close to the wall 12. Porous stone or other air diffusers 15 are located adjacent the bottom of the agitation section 10. An opening 16 provides communication between the upper parts of sections 10 and 11, this opening being associated with deflectors or baffles 17, and 17a to prevent short circuiting. There is also a baffle 17b at the inlet to direct the sewage or other waste liquor to the lower part of the tank 10. The sludge separation section 11 has a sloping bottom so that the separated sludge is directed towards a sludge return opening 19 and the diffusers 20, which are under manual control, are used to control the amount of sludge returned. There may be more or less than three stages before purified effluent is discharged at 24. In other modifications (not shown) the tanks are of circular cross section and the levels of aerators 15 and 20 are different.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3406559A GB934146A (en) | 1959-10-08 | 1959-10-08 | Improvements in or relating to the purification or treatment of sewage and other liquors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3406559A GB934146A (en) | 1959-10-08 | 1959-10-08 | Improvements in or relating to the purification or treatment of sewage and other liquors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB934146A true GB934146A (en) | 1963-08-14 |
Family
ID=10360944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3406559A Expired GB934146A (en) | 1959-10-08 | 1959-10-08 | Improvements in or relating to the purification or treatment of sewage and other liquors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB934146A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366242A (en) * | 1964-01-09 | 1968-01-30 | Drysdale & Co Ltd | Treatment of sewage and like industrial wastes |
US3495711A (en) * | 1967-04-05 | 1970-02-17 | Stenberg Flygt Ab | System for treating sewage water using flocculation and aeration as a means thereby |
US3711072A (en) * | 1970-04-23 | 1973-01-16 | D Waldenville | Apparatus for oxygenation of liquids |
CN110642368A (en) * | 2019-10-30 | 2020-01-03 | 欧基(上海)环保科技有限公司 | Purifying equipment and two-chamber type air stripping equipment thereof |
-
1959
- 1959-10-08 GB GB3406559A patent/GB934146A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366242A (en) * | 1964-01-09 | 1968-01-30 | Drysdale & Co Ltd | Treatment of sewage and like industrial wastes |
US3495711A (en) * | 1967-04-05 | 1970-02-17 | Stenberg Flygt Ab | System for treating sewage water using flocculation and aeration as a means thereby |
US3711072A (en) * | 1970-04-23 | 1973-01-16 | D Waldenville | Apparatus for oxygenation of liquids |
CN110642368A (en) * | 2019-10-30 | 2020-01-03 | 欧基(上海)环保科技有限公司 | Purifying equipment and two-chamber type air stripping equipment thereof |
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