GB187315A - Improvements in or connected with the treatment of sewage and other impure liquids - Google Patents
Improvements in or connected with the treatment of sewage and other impure liquidsInfo
- Publication number
- GB187315A GB187315A GB1914021A GB1914021A GB187315A GB 187315 A GB187315 A GB 187315A GB 1914021 A GB1914021 A GB 1914021A GB 1914021 A GB1914021 A GB 1914021A GB 187315 A GB187315 A GB 187315A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sludge
- tanks
- sewage
- pipe
- aerating
- 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
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
-
- 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
-
- 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
187,315. Activated Sludge, Ltd., and Coombs, J. A. July 15, 1921. Aerating.-In order to obtain in a relatively short period, an effluent of sufficient purity to allow of its being discharged into a river or estuary, the sewage to be treated is mixed with highly active sludge for a period of from 10 to 60 minutes in a tank 1<x> provided with mechanical circulators 22 and baffles 20, 21. It is then passed into a series of tanks 1 in which it is further aerated by means of air diffusers 14 at the bottoms of the tanks. The mixture of sludge and sewage is then led by means of a pipe 23 into settling tanks 5 where the effluent is drawn off. The sludge, which is now a mixture of the original sludge and the new sludge from the treated sewage, is conveyed by a pipe 24 into a series of aerating tanks 10 provided with air diffusers 14; and in these tanks the sludge again becomes highly active, the period of aeration being about 4 to 8 hours. From the last of the series of aerating tanks 10 the sludge is taken by a pipe 25 to settling tanks 15 where more water is drained from it, the concentrated sludge being collected in a tank or chamber 18, from which it is drawn by a pump 26 and delivered through a pipe 28 to the initial mixing tank 1<x> near the sewage entry pipe 29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914021A GB187315A (en) | 1921-07-15 | 1921-07-15 | Improvements in or connected with the treatment of sewage and other impure liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914021A GB187315A (en) | 1921-07-15 | 1921-07-15 | Improvements in or connected with the treatment of sewage and other impure liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB187315A true GB187315A (en) | 1922-10-16 |
Family
ID=10124410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1914021A Expired GB187315A (en) | 1921-07-15 | 1921-07-15 | Improvements in or connected with the treatment of sewage and other impure liquids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB187315A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465658A (en) * | 1944-09-13 | 1949-03-29 | Frederick E Nussberger | Purification of liquids |
| FR2573747A1 (en) * | 1984-11-28 | 1986-05-30 | V Zaochny Inzh St | Activated sludge tank |
| FR2577210A1 (en) * | 1985-02-08 | 1986-08-14 | V Zaochny Inzh St | Activated sludge tank |
| US5011605A (en) * | 1988-10-11 | 1991-04-30 | Envicon Luft- Und Wassertechnik Gmbh & Co. Kg | Sewage treatment plant |
-
1921
- 1921-07-15 GB GB1914021A patent/GB187315A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465658A (en) * | 1944-09-13 | 1949-03-29 | Frederick E Nussberger | Purification of liquids |
| FR2573747A1 (en) * | 1984-11-28 | 1986-05-30 | V Zaochny Inzh St | Activated sludge tank |
| FR2577210A1 (en) * | 1985-02-08 | 1986-08-14 | V Zaochny Inzh St | Activated sludge tank |
| US5011605A (en) * | 1988-10-11 | 1991-04-30 | Envicon Luft- Und Wassertechnik Gmbh & Co. Kg | Sewage treatment plant |
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