GB1527895A - Surface aeration system with controlled aerator submergence - Google Patents
Surface aeration system with controlled aerator submergenceInfo
- Publication number
- GB1527895A GB1527895A GB4241375A GB4241375A GB1527895A GB 1527895 A GB1527895 A GB 1527895A GB 4241375 A GB4241375 A GB 4241375A GB 4241375 A GB4241375 A GB 4241375A GB 1527895 A GB1527895 A GB 1527895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- liquid
- aerator
- oct
- power consumption
- 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
- C02F3/006—Regulation methods for biological treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/234—Surface aerating
- B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
- B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
- B01F23/237612—Oxygen
-
- 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
- C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
- B01F33/71—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming working at super-atmospheric pressure, e.g. in pressurised vessels
-
- 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)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
1527895 Aerating liquids UNION CARBIDE CORP 16 Oct 1975 [17 Oct 1974] 42413/75 Heading B1C [Also in Division G3] In a method of and apparatus for contacting a gas with a liquid, e.g. oxygen-rich gas with BOD liquor, and in which rotary surface aeration means 12, Fig. 2, are positioned in an enclosed treatment chamber 25 to which the liquid and gas are fed, the power consumption of the aeration means 12 is sensed by sensing means 89, a control signal generated and transmitted, 23, 24 and gas flow control means 6 adjusted in dependence thereon in order to adjust the gas pressure in the chamber and thereby the liquid level so as to maintain the power consumption at a predetermined optimum value and the liquid level at the design value. The rotary aerator may comprise four radially-extending, forwardly-angled blades mounted on a vertical shaft (Fig. 1 not shown) or alternatively a horizontally mounted brush-type aerator 39, Fig. 3, which extends through successive aeration chambers 40, 41, 42. In another embodiment (Fig. 5, not shown) the vertically arranged shafts of radial blade type aerators extend down into the liquid and carry mixing propellers at their lower ends. Controls (see Division G3) may be provided for controlling the oxygen concentration of the liquid undergoing treatment and the oxygen concentration of the spent gas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51568174A | 1974-10-17 | 1974-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1527895A true GB1527895A (en) | 1978-10-11 |
Family
ID=24052313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4241375A Expired GB1527895A (en) | 1974-10-17 | 1975-10-16 | Surface aeration system with controlled aerator submergence |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5436415B2 (en) |
BR (1) | BR7506766A (en) |
DE (1) | DE2546429A1 (en) |
FR (1) | FR2287939A1 (en) |
GB (1) | GB1527895A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138692A (en) * | 1983-04-05 | 1984-10-31 | Isc Smelting | Dispersion of Liquids in Gases |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2500323B2 (en) * | 1974-12-05 | 1989-05-19 | Roland Jean Louis | DEVICE FOR INTRODUCING A GAS INTO A LIQUID |
DE2800034C2 (en) * | 1978-01-02 | 1984-01-05 | Passavant-Werke AG & Co KG, 6209 Aarbergen | Wastewater treatment process as well as the facility for its implementation |
EP0088850B1 (en) * | 1982-03-12 | 1986-07-16 | Jean-Louis Roland | Device for introducing a gas into a liquid and use of the said device |
JPH0222026Y2 (en) * | 1985-08-08 | 1990-06-13 | ||
RU200367U1 (en) * | 2020-03-11 | 2020-10-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петрозаводский государственный университет" | OXYGENATOR |
CN115433594B (en) * | 2022-09-28 | 2023-12-05 | 张双兴 | Pressure adjusting method and device |
-
1975
- 1975-10-16 DE DE19752546429 patent/DE2546429A1/en not_active Withdrawn
- 1975-10-16 JP JP12387375A patent/JPS5436415B2/ja not_active Expired
- 1975-10-16 GB GB4241375A patent/GB1527895A/en not_active Expired
- 1975-10-16 BR BR7506766A patent/BR7506766A/en unknown
- 1975-10-19 FR FR7531721A patent/FR2287939A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138692A (en) * | 1983-04-05 | 1984-10-31 | Isc Smelting | Dispersion of Liquids in Gases |
Also Published As
Publication number | Publication date |
---|---|
JPS5164749A (en) | 1976-06-04 |
BR7506766A (en) | 1976-08-17 |
DE2546429A1 (en) | 1976-04-29 |
JPS5436415B2 (en) | 1979-11-09 |
FR2287939B1 (en) | 1980-01-11 |
FR2287939A1 (en) | 1976-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |