CH604864A5 - - Google Patents
Info
- Publication number
- CH604864A5 CH604864A5 CH728976A CH728976A CH604864A5 CH 604864 A5 CH604864 A5 CH 604864A5 CH 728976 A CH728976 A CH 728976A CH 728976 A CH728976 A CH 728976A CH 604864 A5 CH604864 A5 CH 604864A5
- Authority
- CH
- Switzerland
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
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
- C02F3/1294—"Venturi" aeration means
-
- 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
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23123—Diffusers consisting of rigid porous or perforated material
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23314—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer element
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2332—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements the stirrer rotating about a horizontal axis; Stirrers therefor
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
- B01F23/23341—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
- B01F23/23364—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced between the stirrer elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- 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
-
- 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
- C02F3/20—Activated sludge processes using diffusers
-
- 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
- C02F3/20—Activated sludge processes using diffusers
- C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
- C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23313—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a separate conduit substantially parallel with the stirrer 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2335—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer
- B01F23/23351—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer the gas moving along the axis of rotation
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2335—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer
- B01F23/23352—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer the gas moving perpendicular to the axis of rotation
-
- 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
-
- 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
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
-
- 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
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
- B01F27/1131—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller with holes in the propeller blade surface
-
- 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
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
- B01F27/1155—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with interconnected discs, forming open frameworks or cages
-
- 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
-
- 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
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical 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)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Gas Separation By Absorption (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752530050 DE2530050A1 (de) | 1975-07-04 | 1975-07-04 | Vorrichtung zur begasung von fluessigkeiten |
Publications (1)
Publication Number | Publication Date |
---|---|
CH604864A5 true CH604864A5 (un) | 1978-09-15 |
Family
ID=5950730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH728976A CH604864A5 (un) | 1975-07-04 | 1976-06-09 |
Country Status (12)
Country | Link |
---|---|
US (1) | US4117048A (un) |
JP (1) | JPS5222163A (un) |
AT (1) | AT345198B (un) |
AU (1) | AU1560676A (un) |
BE (1) | BE843672A (un) |
CH (1) | CH604864A5 (un) |
DE (1) | DE2530050A1 (un) |
DK (1) | DK300776A (un) |
ES (1) | ES449559A1 (un) |
FR (1) | FR2315984A1 (un) |
NL (1) | NL7607333A (un) |
SE (1) | SE7606878L (un) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193950A (en) * | 1975-07-04 | 1980-03-18 | Linde Aktiengesellschaft | Apparatus for introducing gas into a liquid |
US4290885A (en) * | 1977-12-22 | 1981-09-22 | Dochan Kwak | Aeration device |
US4231974A (en) * | 1979-01-29 | 1980-11-04 | General Signal Corporation | Fluids mixing apparatus |
PL129048B1 (en) * | 1980-05-31 | 1984-03-31 | Okregowa Spoldzielnia Mleczars | Method of deeply aerating waste waters and apparatus therefor |
US4399028A (en) * | 1982-06-14 | 1983-08-16 | The Black Clawson Company | Froth flotation apparatus and method |
US4521349A (en) * | 1983-01-20 | 1985-06-04 | A. R. Wilfley And Sons, Inc. | Fluid diffuser for gases and liquids |
US5051213A (en) * | 1983-08-16 | 1991-09-24 | Weske John R | Method and apparatus for mixing fluids |
US4717515A (en) * | 1985-04-29 | 1988-01-05 | Wilfley Weber, Inc. | Apparatus for dispersing fluids in liquids |
US4961882A (en) * | 1988-06-23 | 1990-10-09 | Exxon Research And Engineering Company | Fine bubble generator and method |
US5102104A (en) * | 1990-03-05 | 1992-04-07 | U.S. Gold Corporation | Biological conversion apparatus |
ZA919256B (en) * | 1990-11-23 | 1992-11-25 | Atomaer Pty Ltd | Gas particle formation |
JPH0642796Y2 (ja) * | 1990-12-21 | 1994-11-09 | 阪神動力機械株式会社 | 水中機械式曝気攪拌装置 |
US5122312A (en) * | 1991-03-05 | 1992-06-16 | Mott Metallurgical Corporation | Bubble injection system |
US5143543A (en) * | 1991-08-23 | 1992-09-01 | U.S. Gold Corporation | Biological conversion method |
DE4135878A1 (de) * | 1991-10-31 | 1993-05-06 | Helmut Dipl.-Phys. 6759 Hohenoellen De Gehm | Verfahren und vorrichtungen zum erzeugen grosser phasengrenzflaechen in gas/fluessig-systemen |
DE4224911A1 (de) * | 1992-07-09 | 1994-01-13 | Tech Resources Pty Ltd | Durchlüfter |
US5925293A (en) * | 1996-10-04 | 1999-07-20 | General Signal Corporation | Mixer sparging apparatus |
US6398195B1 (en) * | 1998-04-10 | 2002-06-04 | Grt, Inc. | Method of and apparatus for producing sub-micron bubbles in liquids and slurries |
WO2005079963A2 (de) * | 2004-01-20 | 2005-09-01 | Venetec Gmbh | Vorrichtung zur kontinuierlichen herstellung von substanzen mit feindispergiertem gas |
DE502007003920D1 (de) * | 2006-12-14 | 2010-07-08 | Sulzer Chemtech Ag | Poröses Dosierelement mit Beschichtung |
CA2717437C (en) * | 2008-03-05 | 2018-02-13 | Mark E. Campbell | Molecular heater and method of heating fluids |
GB2535659B (en) * | 2015-07-09 | 2017-02-22 | Ariel-University Res And Dev Company Ltd | Reaction vessel having upper and lower Venturi pumps |
ITUA20164423A1 (it) * | 2016-05-27 | 2017-11-27 | Teda Sas Di Cristina Soranzo & C | Miscelatore esterno autoaspirante per dissoluzione/miscelazione aria in vasche di ossidazione biologica |
US11819811B2 (en) * | 2020-06-23 | 2023-11-21 | Noritz Corporation | Premixing device and combustion device equipped with the premixing device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1250303A (en) * | 1915-12-04 | 1917-12-18 | William E Greenawalt | Flotation apparatus. |
GB412842A (en) * | 1932-11-22 | 1934-07-05 | Julius Gosda | Pipe system for aeration and ventilation of liquids, especially of fermenting worts in the manufacture of yeast, spirit, vinegar and the like |
US2144385A (en) * | 1935-03-18 | 1939-01-17 | Advance Engineering Company | Sewage treatment apparatus |
US2221346A (en) * | 1938-07-13 | 1940-11-12 | Chicago Pump Co | Air diffusing means |
BE505351A (un) * | 1950-08-23 | |||
US2708571A (en) * | 1951-05-29 | 1955-05-17 | Industrikemiska Ab | Method and apparatus for contacting gases and liquids |
NL256235A (un) * | 1959-09-24 | 1900-01-01 | ||
US3043433A (en) * | 1961-05-17 | 1962-07-10 | Singer Oscar Caton | Sewage treatment plant |
DE1557051A1 (de) * | 1966-08-10 | 1969-08-28 | Eta Corp | Ruehr- oder Mischvorrichtung,insbesondere Belueftungsvorrichtung fuer Klaeranlagen |
US3489396A (en) * | 1968-03-14 | 1970-01-13 | Paul D Aragon | Stream water aerator |
DE2143518C2 (de) * | 1971-08-31 | 1982-11-25 | Versuchsanstalt Fuer Binnenschiffbau E.V., 4100 Duisburg | Vorrichtung zum Anreichern von Gewässern mit Sauerstoff |
DE2232514A1 (de) * | 1972-07-03 | 1974-01-24 | Messerschmitt Boelkow Blohm | Einrichtung zur belueftung von gewaessern |
GB1459413A (en) * | 1973-03-06 | 1976-12-22 | Laurie A H | Aeration and mixing of liquids |
-
1975
- 1975-07-04 DE DE19752530050 patent/DE2530050A1/de not_active Withdrawn
- 1975-12-15 AT AT950275A patent/AT345198B/de not_active IP Right Cessation
-
1976
- 1976-06-09 CH CH728976A patent/CH604864A5/xx not_active IP Right Cessation
- 1976-06-16 SE SE7606878A patent/SE7606878L/xx unknown
- 1976-06-28 JP JP7699976A patent/JPS5222163A/ja active Pending
- 1976-06-30 FR FR7620023A patent/FR2315984A1/fr active Granted
- 1976-07-01 BE BE168543A patent/BE843672A/xx unknown
- 1976-07-02 DK DK300776A patent/DK300776A/da not_active Application Discontinuation
- 1976-07-02 NL NL7607333A patent/NL7607333A/xx unknown
- 1976-07-02 US US05/702,052 patent/US4117048A/en not_active Expired - Lifetime
- 1976-07-03 ES ES449559A patent/ES449559A1/es not_active Expired
- 1976-07-05 AU AU15606/76A patent/AU1560676A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT345198B (de) | 1978-09-11 |
DE2530050A1 (de) | 1977-01-27 |
DK300776A (da) | 1977-01-05 |
AU1560676A (en) | 1978-01-12 |
SE7606878L (sv) | 1977-01-05 |
FR2315984A1 (fr) | 1977-01-28 |
ES449559A1 (es) | 1977-08-01 |
JPS5222163A (en) | 1977-02-19 |
BE843672A (fr) | 1976-11-03 |
ATA950275A (de) | 1977-12-15 |
FR2315984B1 (un) | 1980-04-30 |
NL7607333A (nl) | 1977-01-06 |
US4117048A (en) | 1978-09-26 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |