GB1272294A - Treatment of sewage - Google Patents
Treatment of sewageInfo
- Publication number
- GB1272294A GB1272294A GB26956/69A GB2695669A GB1272294A GB 1272294 A GB1272294 A GB 1272294A GB 26956/69 A GB26956/69 A GB 26956/69A GB 2695669 A GB2695669 A GB 2695669A GB 1272294 A GB1272294 A GB 1272294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tank
- aeration
- via line
- settling
- sludge
- 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
- C02F3/1257—Oxidation ditches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
-
- 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
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
1,272,294. Activated sludge process. SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP. 28 May, 1969, No. 26956/69. Heading C1C. Raw sewage and activated sludge are agitated in a tank 12.1 after which a portion of the contents of this tank are transferred to a settling tank 14, from which settled sludge is removed, and the remainder of the contents are transferred to an aeration tank 12.2 from a higher level than that from which the portion of the contents of the agitation tank is transferred therefrom to the settling tank. The agitation may be effected by stirrers, rotating discs or by partial aeration. A portion of the effluent from the aeration tank 12.2 may be returned to the influent sewage via line 24 and the activated sludge may be directed from a settling tank 20 to the influent sewage via line 21 and to the aeration tank via line 26. Sludge discharged from the settling tank 14 may be transferred to an anaerobic digester 18. The rate of flow of liquid from the agitation tank 12.1 to the settling tank 14 may be controlled by adjusting the rate of sludge discharge or, Fig. 3 (not shown), of effluent flow from the settling tank 14 to the aeration tanx 12.2 via line (16.1). Some of the sludge from the settling tank 14 may be returned to the agitation tank 12.1 via line (17.1). The agitation tank 12.1 and aeration tank 12.2 may be in the form of one or more endless channels surrounding both settling tanks 14, 20, Fig. 2 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26956/69A GB1272294A (en) | 1969-05-28 | 1969-05-28 | Treatment of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26956/69A GB1272294A (en) | 1969-05-28 | 1969-05-28 | Treatment of sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1272294A true GB1272294A (en) | 1972-04-26 |
Family
ID=10251851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26956/69A Expired GB1272294A (en) | 1969-05-28 | 1969-05-28 | Treatment of sewage |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1272294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534607A (en) * | 2018-12-21 | 2019-03-29 | 佛山市玉凰生态环境科技有限公司 | Sewage disposal device with automatic aeration function |
-
1969
- 1969-05-28 GB GB26956/69A patent/GB1272294A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534607A (en) * | 2018-12-21 | 2019-03-29 | 佛山市玉凰生态环境科技有限公司 | Sewage disposal device with automatic aeration function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |