GB1285014A - Device for aerating liquids - Google Patents
Device for aerating liquidsInfo
- Publication number
- GB1285014A GB1285014A GB2322671A GB2322671A GB1285014A GB 1285014 A GB1285014 A GB 1285014A GB 2322671 A GB2322671 A GB 2322671A GB 2322671 A GB2322671 A GB 2322671A GB 1285014 A GB1285014 A GB 1285014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- projections
- liquid
- holes
- axis
- 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
- C02F3/14—Activated sludge processes using surface aeration
- C02F3/18—Activated sludge processes using surface aeration the aerator having a horizontal 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
- B01F23/234—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
-
- 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)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
1285014 Mining &c SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 19 April 1971 [17 March 1970] 23226/71 Heading BIC Apparatus for aerating liquid, such as sewage, comprises a disc 20 rotatable about an axis 22 and having projections 24 which converge in the direction of rotation and draw gas into the liquid during rotation of the disc when partly immersed in the liquid. In a modification (Fig. 6, not shown) the projections are not symmetrical and are arranged in rows which do not pass through the axis. In a further modification (Figs. 8-9 not shown) the projections are formed by triangular prisms fixed in holes and projecting on either side of the disc, the disc also having holes not containing prisms. The discs are of plastics or metal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA701789A ZA701789B (en) | 1970-03-17 | 1970-03-17 | Device for aerating liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1285014A true GB1285014A (en) | 1972-08-09 |
Family
ID=25561792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2322671A Expired GB1285014A (en) | 1970-03-17 | 1971-04-19 | Device for aerating liquids |
Country Status (5)
Country | Link |
---|---|
US (1) | US3744774A (en) |
JP (1) | JPS544102B1 (en) |
GB (1) | GB1285014A (en) |
IL (1) | IL36328A (en) |
ZA (1) | ZA701789B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4127994A (en) * | 1977-01-26 | 1978-12-05 | White-Westinghouse Corporation | Oil stirrer for refrigeration compressor |
DE2829006A1 (en) * | 1978-07-01 | 1980-01-10 | Rheintechnik Weiland & Kaspar | METHOD AND DEVICE FOR AERATING WATER |
US4372895A (en) * | 1980-04-28 | 1983-02-08 | Envirex Inc. | Disc for aeration of sewage |
US4299601A (en) * | 1980-09-15 | 1981-11-10 | Bessam Manufacturing, Inc. | Apparatus for filtering, washing and cooling gases |
US4539110A (en) * | 1983-08-03 | 1985-09-03 | Hardison John C | Liquid aerator |
US5840196A (en) * | 1997-06-10 | 1998-11-24 | Laurent; Craig Thomas | Wastewater management product and process |
US5942161A (en) * | 1997-07-16 | 1999-08-24 | Battelle Memorial Institute | Device and process for liquid treatment |
SE512703C2 (en) * | 1998-09-25 | 2000-05-02 | Sandvik Ab | Apparatus and method for making drops from a liquid |
NZ624660A (en) * | 2014-05-07 | 2015-11-27 | Henley Ind Ltd | Improvements in and relating to the aeration of fluids |
CA2952161C (en) * | 2014-09-16 | 2023-01-03 | Evoqua Water Technologies Llc | Aeration discs and methods for using same |
WO2021013789A1 (en) * | 2019-07-25 | 2021-01-28 | Bayer Aktiengesellschaft | Disc for spray unit |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US200540A (en) * | 1878-02-19 | Improvement in machines for preparing wood for making paper-pulp | ||
GB215555A (en) * | ||||
US248509A (en) * | 1881-10-18 | schmeja | ||
US998491A (en) * | 1910-03-02 | 1911-07-18 | Warren H Frost | Gas-scrubber. |
GB191006438A (en) * | 1910-03-15 | 1910-06-02 | Albert William Mathys | Improvements in Coffee Mills and the like. |
US2253418A (en) * | 1939-11-21 | 1941-08-19 | Crandall Max | Air conditioning apparatus |
US2243839A (en) * | 1940-05-23 | 1941-06-03 | Ind Sheet Metal Works Inc | Spray booth |
US2778680A (en) * | 1955-12-05 | 1957-01-22 | Stanley W Bonser | Water sprinkler for lawns, gardens, truck farms and golf courses, and the like |
US2879979A (en) * | 1956-11-08 | 1959-03-31 | Byrhl F Wheeler | Evaporative wheel |
DE1194556B (en) * | 1959-06-05 | 1965-06-10 | Soederhamns Verkstaeder Aktieb | Cutting machine for the production of wood chips |
US3229966A (en) * | 1961-12-18 | 1966-01-18 | Bernard W Kilgore | Humidifying device |
-
1970
- 1970-03-17 ZA ZA701789A patent/ZA701789B/en unknown
-
1971
- 1971-03-02 US US3744774D patent/US3744774A/en not_active Expired - Lifetime
- 1971-03-03 IL IL3632871A patent/IL36328A/en unknown
- 1971-03-16 JP JP1412771A patent/JPS544102B1/ja active Pending
- 1971-04-19 GB GB2322671A patent/GB1285014A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IL36328A0 (en) | 1971-05-26 |
IL36328A (en) | 1974-01-14 |
JPS544102B1 (en) | 1979-03-02 |
ZA701789B (en) | 1971-05-27 |
US3744774A (en) | 1973-07-10 |
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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 |