GB1342794A - Treatment of sewage sludge - Google Patents
Treatment of sewage sludgeInfo
- Publication number
- GB1342794A GB1342794A GB1342794DA GB1342794A GB 1342794 A GB1342794 A GB 1342794A GB 1342794D A GB1342794D A GB 1342794DA GB 1342794 A GB1342794 A GB 1342794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- sludge
- digestion
- volume
- stabilization
- 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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
- C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
-
- 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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1257—Oxidation ditches
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
1342794 Treating anaerobic sludges PERMUTIT CO Ltd 3 May 1972 [3 May 1971] 12697/71 Heading C1C A sludge produced by anaerobic digestion (e.g. primary sludge) is treated in the aerobic digestion zone of a long period aeration activated sludge plant. A suitable plant comprises contact zone 3, settling zone 2, stabilization zone 4 and digestion zone 5, the volume of digestion zone 5 being at least 1“ times the volume of the stabilization zone 4. The volume of the digestion zone may be 1“-2 times the volume of the stabilization zone. In use sewage in admixture with activated sludge from zone 4, is aerated in zone 3. Sludge is settled in zone 2 and passed by an airlift to aerobic stabilization zone 4. Sludge from zone 4 and an anaerobic sludge from a source (not shown) are digested in aerobic digestion zone 5.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1269771 | 1972-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1342794A true GB1342794A (en) | 1974-01-03 |
Family
ID=10009451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1342794D Expired GB1342794A (en) | 1972-05-03 | 1972-05-03 | Treatment of sewage sludge |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1342794A (en) |
-
1972
- 1972-05-03 GB GB1342794D patent/GB1342794A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |