GB773124A - Combined anaerobic treatment and clarification unit - Google Patents
Combined anaerobic treatment and clarification unitInfo
- Publication number
- GB773124A GB773124A GB2641555A GB2641555A GB773124A GB 773124 A GB773124 A GB 773124A GB 2641555 A GB2641555 A GB 2641555A GB 2641555 A GB2641555 A GB 2641555A GB 773124 A GB773124 A GB 773124A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- digestion
- influent
- sludge
- solids
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2886—Two story combinations of the Imhoff tank type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
Abstract
773,124. Digestion apparatus; gravityseparation apparatus. DORR-OLIVER, Inc. Sept. 15, 1955, No. 26415/55. Class 111. Sewage or industrial waste is introduced e.g. at 15 to an anaerobic digestion compartment 20 and displaces therefrom a quantity of relatively solids-free liquid through a pipe 21 to the feedwell 23 of a superimposed clarifying compartment 24, whence clarified effluent emerges at 27 and sludge is scraped back into the digestion compartment through a boot 45 and past a rotating closure plate 46. Some gas formed in the digestion compartment collects under the partition wall 12, thus forming a thermal seal, the remainder thereafter collecting in a gas chamber 53. Gas is prevented from rising into the clarifying compartment by overlapping of the upturned edge of plate 46 and the lower edge of boot 45, and upward liquid flow at this location is prevented by the downward flow of solids. Scum in the digestion compartment is broken up by inter-engagement of rotating blades 39 with fixed blades 40. Sludge in the bottom of the digestion compartment is circulated mainly towards a well 19 by scrapers 32, whence it is withdrawn at 35. Influent may alternatively be introduced to the well 19 by pipe 17 instead of at 15, in which case sludge is withdrawn at 33. Mixing of the influent with the digestion compartment contents is assisted by the rotation of scraper arms 30, blades 32 and supporting truss 31. The effluent may pass to a sand filter (not shown), which, as a result of the above process, has no tendency to clogging or ponding, even when the influent contains grease, soap and detergent solids.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2641555A GB773124A (en) | 1955-09-15 | 1955-09-15 | Combined anaerobic treatment and clarification unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2641555A GB773124A (en) | 1955-09-15 | 1955-09-15 | Combined anaerobic treatment and clarification unit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB773124A true GB773124A (en) | 1957-04-24 |
Family
ID=10243300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2641555A Expired GB773124A (en) | 1955-09-15 | 1955-09-15 | Combined anaerobic treatment and clarification unit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB773124A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2183732A1 (en) * | 1972-05-06 | 1973-12-21 | Purtell Ellie | |
EP0142307A1 (en) * | 1983-10-26 | 1985-05-22 | University College Cardiff Consultants Ltd. | Hydraulic digester |
GB2457681A (en) * | 2008-02-21 | 2009-08-26 | Farm Renewable Enviromental En | A Gas Acuated Mixing System |
FR2932468A1 (en) * | 2008-06-12 | 2009-12-18 | Ile Dlmr Soc Civ | DEVICE AND METHOD FOR HOMOGENIZING SLUDGE FOR ANAEROBIC DIGESTER INFINIMENT MIXTURE AND ANAEROBIC DIGESTER CORRESPONDING |
FR2969184A1 (en) * | 2010-12-21 | 2012-06-22 | Cultisol | Water-proofing device for sealing construction pit to receive drained vertical sand filter to treat wastewater from sewerage installation installed in residential building, has waterproof-piece coating unit attaching side walls of pit |
CN106497759A (en) * | 2016-11-30 | 2017-03-15 | 上海市政工程设计研究总院(集团)有限公司 | A kind of anaerobic jar scum silica frost EGR |
CN110665947A (en) * | 2019-11-12 | 2020-01-10 | 湖州师范学院 | High-temperature anaerobic digestion method for small agricultural wastes and sludge |
-
1955
- 1955-09-15 GB GB2641555A patent/GB773124A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2183732A1 (en) * | 1972-05-06 | 1973-12-21 | Purtell Ellie | |
EP0142307A1 (en) * | 1983-10-26 | 1985-05-22 | University College Cardiff Consultants Ltd. | Hydraulic digester |
GB2457681A (en) * | 2008-02-21 | 2009-08-26 | Farm Renewable Enviromental En | A Gas Acuated Mixing System |
GB2457681B (en) * | 2008-02-21 | 2013-02-27 | Farm Renewable Enviromental Energy Ltd | A gas actuated mixing system |
US8608965B2 (en) | 2008-02-21 | 2013-12-17 | Farm Renewable Environmental Energy Ltd. | Gas actuated mixing system and method |
FR2932468A1 (en) * | 2008-06-12 | 2009-12-18 | Ile Dlmr Soc Civ | DEVICE AND METHOD FOR HOMOGENIZING SLUDGE FOR ANAEROBIC DIGESTER INFINIMENT MIXTURE AND ANAEROBIC DIGESTER CORRESPONDING |
WO2010004102A1 (en) * | 2008-06-12 | 2010-01-14 | Societe Civile Dlmr | Sludge homogenization device and method for an infinitely mixed anaerobic digester, and corresponding anaerobic digester |
FR2969184A1 (en) * | 2010-12-21 | 2012-06-22 | Cultisol | Water-proofing device for sealing construction pit to receive drained vertical sand filter to treat wastewater from sewerage installation installed in residential building, has waterproof-piece coating unit attaching side walls of pit |
CN106497759A (en) * | 2016-11-30 | 2017-03-15 | 上海市政工程设计研究总院(集团)有限公司 | A kind of anaerobic jar scum silica frost EGR |
CN110665947A (en) * | 2019-11-12 | 2020-01-10 | 湖州师范学院 | High-temperature anaerobic digestion method for small agricultural wastes and sludge |
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