DE471715C - Ventilation device for waste water treatment basin - Google Patents
Ventilation device for waste water treatment basinInfo
- Publication number
- DE471715C DE471715C DEK98276D DEK0098276D DE471715C DE 471715 C DE471715 C DE 471715C DE K98276 D DEK98276 D DE K98276D DE K0098276 D DEK0098276 D DE K0098276D DE 471715 C DE471715 C DE 471715C
- Authority
- DE
- Germany
- Prior art keywords
- air
- water
- waste water
- water treatment
- ventilation device
- 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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
Belüftung seinrichtung für Abwasserreinigung sbecken Es ist bekannt, in Lüftungsbecren, die nach dem Belebtschlammverfahren arbeiten, die notwendigeWasserumwälzung mit Schaufelrädern oder Drehflügeln zu bewirken (Sheffielder-System), wobei von den einzelnen Rührflügeln, welche in das Wasser zur Bewegung desselben eintauchen, gleichzeitig noch eine gewisse Menge Luft mit eingebracht wird. Ahnliche Vorrichtungen, bestehend aus Drehwellen mit Rührflügeln, sind auch zwecks Durchmischung von Flüssigkeiten mit Gasen bekannt, und zwar drehen sich die Rührflügel gewöhnlich in geschlossenen Kesseln, denen das Gas unter Druck zugeführt wird; die auf der Drehwelle sitzenden Rührflügel tragen an den Enden Schöpfgefäße mit durchlöehertem Boden, um die Flüssigkeit beim Durchtropfen innig mit den Gasen in Berührung zu bringen. Es ist ferner bekannt, in Abwasserreinigungsbecken das Wasser durch Einführung von Druckluft an der Sohle der Becken durch Filterplatten oder Düsen umzuwälzen und zu belüften.Ventilation device for sewage treatment basins It is known the necessary water circulation in ventilation basins that work according to the activated sludge process to effect with paddle wheels or rotating vanes (Sheffielder system), whereby from the individual agitator blades, which are immersed in the water to move it, at the same time a certain amount of air is introduced. Similar devices consisting of rotating shafts with agitator blades, are also used for the purpose of mixing liquids known with gases, namely the impellers usually rotate in closed Boilers to which the gas is fed under pressure; those sitting on the rotating shaft At the ends, impellers carry scooping vessels with a perforated bottom to hold the liquid to be brought into intimate contact with the gases when dripping through. It is also known in wastewater treatment basins the water by introducing compressed air at the bottom to circulate and ventilate the basin through filter plates or nozzles.
Das Neuartige der vorliegenden Erfindung besteht darin, eine intensive Lufteinführung in einfacher Weise mit der mechanischen Wasserumwälzung zu verbinden und eine besondere maschinelle Erzeugung von Druckluft überflüssig zu machen. Dies geschieht dadurch, daß die einzelnen Flügelarme gleichzeitig die Erzeuger und Verteiler des zuzuführenden Luftsauerstoffes sind. Hierdurch wird eine wesentliche Vereinfachung der Belüftung erzielt, die sehr billig und wirtschaftlich ist. The novelty of the present invention is an intense To connect air introduction in a simple manner with the mechanical water circulation and to make a special mechanical generation of compressed air superfluous. this happens because the individual wing arms are the producers and distributors at the same time of the atmospheric oxygen to be supplied. This is a major simplification ventilation which is very cheap and economical.
Bei der Erfindung werden die Enden der einzelnen Drehflügel mit unten offenen Behaltern ausgerüstet, die beim Auftauchen über Wasser sich mit Luft füllen, diese Luft mit der weiteren Drehung beim Untertauchen unter Druck setzen und in Form von feinen Bläschen allmählich durch kleine, in der Behältenvand befindliche sieb- oder düsenartige Oeffnungen wieder abgeben. Hierdurch ist die notwendige Belüftung des Wassers in einfachster Weise erreicht. Es ist nicht mehr nötig, die Druckluft in maschineller Weise durch Kompressoren zu erzeugen. In the invention, the ends of the individual rotary blades are below equipped with open tanks, which fill with air when surfacing above water, pressurize this air with the further rotation while submerging and in Form of fine vesicles gradually through small ones in the container wall Release sieve-like or nozzle-like openings again. This provides the necessary ventilation of the water achieved in the simplest way. The compressed air is no longer necessary generated mechanically by compressors.
Abb. I zeigt ein Ausführungsbeispiel der Erfindung im Querschnitt des Lüftungsbeckens ; Abb. 2 zeigt den Querschnitt des Luftbehälters in größerem Maßstab. Fig. I shows an embodiment of the invention in cross section the ventilation basin; Fig. 2 shows the cross section of the air tank in a larger Scale.
Das umzuwälzende und zu belüftende Wasser befindet sich in einem Behälter, den es ständig oder unterbrochen durchfließt. b ist die sich drehende Welle, die mit den einzelnen Rührflügeln c besetzt ist, welche die Wasserumwälzung in der Pfeilrichtung bewirken. An den Enden der Flügel befinden sich nach unten offene Behälter d, welche kastenförmig in zweckentsprechender Form so ausgebildet sind, daß sie sich beim Auftauchen aus dem Wasser mit Luft füllen, beim Wiedereintauchen die Luft abschließen und sie in Form von kleinen Druckluftbläschen mit der weiteren Drehung durch feine in der Behälterwand befindliche sieb- oder düsenartige Offnungen e wieder in das Wasser abgeben. The water to be circulated and aerated is in one Container through which it flows continuously or intermittently. b is the rotating one Shaft, which is occupied with the individual agitator blades c, which circulate the water effect in the direction of the arrow. At the ends of the wings are down open container d, which is box-shaped in an appropriate shape are that they fill with air when they emerge from the water, when they submerge again close off the air and in the form of small compressed air bubbles with the other Rotation through fine sieve-like or nozzle-like openings in the container wall Release e back into the water.
Auf diese einfache Weise wird die Druckluft erzeugt und wieder in Form feiner Bläschen dem Wasser zur innigen Belüftung zugeführt. In this simple way the compressed air is generated and back in In the form of fine bubbles fed to the water for intimate aeration.
In Abb. 2 ist der Querschnitt durch den Luftbehälter d in größerem Maßstabe ersichtlich, so daß deutlich die Form und Anordnungen der Offnungen e zu erkennen sind. In Fig. 2 the cross section through the air tank d is larger Scale can be seen, so that clearly the shape and arrangements of the openings e to are recognizable.
Im übrigen ist die Lage der Drehwelle in dem Becken beliebig, desgleichen die Ausbildung der Rührflügel c und der Luftbehälter d. Otherwise, the position of the rotary shaft in the basin is arbitrary, the same the formation of the agitator blades c and the air tank d.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK98276D DE471715C (en) | Ventilation device for waste water treatment basin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK98276D DE471715C (en) | Ventilation device for waste water treatment basin |
Publications (1)
Publication Number | Publication Date |
---|---|
DE471715C true DE471715C (en) | 1929-02-16 |
Family
ID=7238872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK98276D Expired DE471715C (en) | Ventilation device for waste water treatment basin |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE471715C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687998A (en) * | 1951-09-18 | 1954-08-31 | Edward J Mcleary | Water aerating and filtering device |
-
0
- DE DEK98276D patent/DE471715C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687998A (en) * | 1951-09-18 | 1954-08-31 | Edward J Mcleary | Water aerating and filtering device |
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