EP0490350A1 - Device for introducing gas into liquids - Google Patents
Device for introducing gas into liquids Download PDFInfo
- Publication number
- EP0490350A1 EP0490350A1 EP91121189A EP91121189A EP0490350A1 EP 0490350 A1 EP0490350 A1 EP 0490350A1 EP 91121189 A EP91121189 A EP 91121189A EP 91121189 A EP91121189 A EP 91121189A EP 0490350 A1 EP0490350 A1 EP 0490350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- hollow body
- gassing
- outlet channel
- liquid
- 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.)
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Classifications
-
- 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
- B01F23/23121—Diffusers having injection means, e.g. nozzles with circumferential outlet
-
- 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
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/912—Radial flow
- B01F2025/9121—Radial flow from the center to the circumference, i.e. centrifugal flow
Definitions
- the invention relates to a device for introducing gas into liquids.
- Fumigation devices are used, for example, for wastewater treatment or for drinking water treatment.
- the liquid to be fumigated is usually located in a basin, which is supplied with air or an oxygen-rich gas via fumigation devices installed on the basin floor.
- Perforated gassing hoses made of elastic plastic are conventionally used, which are mounted on steel frames. It is also known to use such gassing devices for water remediation. For this purpose, the gassing hoses are simply laid on the water floor. The use of gassing hoses for wastewater treatment is described, for example, in "Abwassertechnik, issue 3/1987, pages 29 to 32".
- the conventional gassing hoses can only be used to a limited extent for cleaning industrial waste water.
- chemicals contained in wastewater can attack the plastic, causing the stability of the Fumigation tubes is reduced.
- the chemicals can cause the fumigation tubes to swell, which closes the pores of the fumigation tubes.
- Solids often occur in industrial wastewater, which can clog the pores of the gassing hoses. For example, lime precipitates to a large extent in waste water from paper mills, which can settle in the pores of the gassing hoses.
- the object of the present invention is therefore to provide a gassing device which does not have the disadvantages of the gassing hoses and nevertheless ensures a uniform distribution of the gas in the liquid.
- At least one hollow body made of solid material is arranged in the liquid and has at least one outlet channel for the exit of the gas into the liquid, the axis of which is at an angle of approximately 5 ° to approximately 40 ° to the Horizontal is inclined downwards.
- the hollow body is made of solid material, it is not possible for the gassing device to swell due to the action of chemicals and for the gas outlet opening to be closed.
- the material for the gassing device is selected according to the respective application. Chemical-resistant plastic, stainless steel and brass are particularly suitable. The rate of rise of the surrounding liquid, ie the so-called chimney effect due to rising gas bubbles, reduced. Because of the longer residence time of the gas bubbles in the liquid, the gas utilization is improved.
- the outlet channel is preferably designed as a flat jet nozzle with a horizontal jet expansion.
- Flat jet nozzles are known per se and are distinguished by the fact that the exiting gas jet is fanned out broadly in one plane.
- the flat jet nozzle is expediently arranged in such a way that the jet expansion takes place in the horizontal direction, so that the most uniform gas distribution in the liquid is achieved around the gassing device.
- the hollow body is formed at least in the region of the outlet channel in the form of a truncated cone with a vertical axis and an outer diameter widening upwards.
- the result is a cone-head nozzle with an outlet channel directed obliquely downwards.
- the gas flowing upwards in the truncated cone is deflected to the side and downwards in the region of the outlet channel, so that it finally inclines downward at an angle of approximately 5 ° to approximately 40 ° relative to the horizontal through the outlet channel into the surrounding area Liquid escapes.
- outlet channels are expediently provided in the hollow body in order to achieve a uniform distribution of the gas around the hollow body.
- the outlet channels preferably have a diameter of approximately 0.5 to approximately 2 mm.
- the hollow body is preferably removable, for example screwable, mounted on a gas supply pipe.
- the hollow body can be easily replaced or the in Hollow body attached outlet channels can be easily cleaned if they are clogged.
- the gassing device can simply be unscrewed using a hexagon wrench. With conventional gassing hoses, on the other hand, replacement of the gassing device is costly and labor-intensive, or in many cases not possible at all.
- hollow bodies e.g. 10 to 20 pieces arranged on a rake or frame, which is laid on the pool floor or on the water bottom.
- a rake or frame which is laid on the pool floor or on the water bottom.
- the gassing device according to the invention is suitable for introducing gas into all conceivable liquids.
- the gassing device is intended to be used to introduce an oxygen-enriched gas or technically pure oxygen into waste water or drinking water. Because it is insensitive to storage, transport and assembly, this simple, robust, reusable and immediately ready-to-use gassing device can be used particularly well as an emergency oxygen gassing system for overloaded sewage treatment plants or for water purification.
- the invention makes it possible, for example, to introduce oxygen into problematic chemical waste water. Since the gassing device can be easily exchanged or cleaned, it is also suitable, for example, for wastewater from paper factories where lime precipitates to a large extent.
- a uniform distribution of the gas bubbles is achieved. With optimal setting of the gas throughput achieved a large range of the individual flat beams. Depending on the gas throughput, a fine to medium-bubble gas distribution can be set. Due to the gas jets emerging obliquely downwards, the rate of ascent of the surrounding water is reduced, which increases the gas utilization rate. In addition, no additional energy is required, such as with injector or two-component nozzles.
- a cone head nozzle is shown in side view and in longitudinal section.
- the hollow body 2 is formed in the region of the outlet channels 3 in the form of a truncated cone with a vertical axis that widens upwards.
- the result is a cone-head nozzle which has lateral outlet channels 3 which are inclined downwards at an angle of approximately 15 ° to the horizontal.
- the outlet channels are designed as bores with a diameter of approx. 1 mm.
- a total of 5 holes are evenly distributed over the circumference of the truncated cone.
- the truncated cone is hollow on the inside and has an inner diameter of approx. 10 mm at its lower end.
- the hollow body 2 has a hexagonal circumference above and below the frustoconical section, so that a conventional hexagon wrench can be used to screw the hollow body 2 on and off.
- the hollow body 2 merges into a tube section 1 which has an internal thread.
- the hollow body 2 is screwably attached to a gas supply pipe, not shown in the figure. In this way brings. In this way, the hollow body 2 can be replaced by simply unscrewing and screwing.
- the gas supply pipe is connected to a frame, also not shown, on which several, for example 10 to 20, hollow bodies 2 are mounted.
- the frame can, for example, be installed on the pool floor of an aeration tank of a sewage treatment plant or lie on a water bed.
- the hollow body 2 is mounted on the frame so that its longitudinal central axis is aligned vertically.
- the gas flowing upwards in the pipe section 1 is deflected to the side and obliquely downwards in the frustoconical section, so that it finally emerges as a gas jet at an angle of approximately 15 ° downwards into the surrounding liquid relative to the horizontal.
- each outlet channel 3 has a notch, preferably approximately 1-1.5 mm deep, which causes the gas jet to expand laterally.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Gaseintrag in Flüssigkeiten.The invention relates to a device for introducing gas into liquids.
Begasungsvorrichtungen werden beispielsweise zur Abwasserreinigung oder zur Trinkwasseraufbereitung eingesetzt. Die zu begasende Flüssigkeit befindet sich dabei üblicherweise in einem Becken, das über am Beckenboden verlegte Begasungseinrichtungen mit Luft oder einem sauerstoffreichen Gas versorgt wird. Herkömmlicherweise werden perforierte Begasungsschläuche aus elastischem Kunststoff verwendet, die auf Stahlrahmen montiert sind. Es ist auch bekannt, derartige Begasungsvorrichtungen zur Gewässersanierung einzusetzen. Hierzu werden die Begasungsschläuche einfach auf dem Gewässerboden verlegt. Der Einsatz von Begasungsschläuchen zur Abwasserreinigung ist beispielsweise in "Abwassertechnik, Heft 3/1987, Seite 29 bis 32" beschrieben.Fumigation devices are used, for example, for wastewater treatment or for drinking water treatment. The liquid to be fumigated is usually located in a basin, which is supplied with air or an oxygen-rich gas via fumigation devices installed on the basin floor. Perforated gassing hoses made of elastic plastic are conventionally used, which are mounted on steel frames. It is also known to use such gassing devices for water remediation. For this purpose, the gassing hoses are simply laid on the water floor. The use of gassing hoses for wastewater treatment is described, for example, in "Abwassertechnik, issue 3/1987, pages 29 to 32".
Die herkömmlichen Begasungsschläuche sind jedoch zur Reinigung von Industrieabwässern nur begrenzt einsetzbar. Einerseits können im Abwasser enthaltene Chemikalien den Kunststoff angreifen, wodurch die Standfestigkeit der Begasungsschläuche verringert wird. Andererseits können die Chemikalien ein Aufquellen der Begasungsschläuche bewirken, wodurch sich die Poren der Begasungsschläuche schließen. Auch treten in Industrieabwässern oft Feststoffe auf, die die Poren der Begasungsschläuche verstopfen können. Beispielsweise fällt in Abwässern aus Papierfabriken Kalk in starkem Maß aus, der sich in den Poren der Begasungsschläuche festsetzen kann. Darüber hinaus besteht oftmals die Gefahr, daß die Begasungsschläuche mechanisch beschädigt oder gequetscht werden.However, the conventional gassing hoses can only be used to a limited extent for cleaning industrial waste water. On the one hand, chemicals contained in wastewater can attack the plastic, causing the stability of the Fumigation tubes is reduced. On the other hand, the chemicals can cause the fumigation tubes to swell, which closes the pores of the fumigation tubes. Solids often occur in industrial wastewater, which can clog the pores of the gassing hoses. For example, lime precipitates to a large extent in waste water from paper mills, which can settle in the pores of the gassing hoses. In addition, there is often the risk that the gassing hoses will be mechanically damaged or crushed.
Aufgabe der vorliegenden Erfindung ist es daher, eine Begasungsvorrichtung bereitzustellen, die die Nachteile der Begasungsschläuche nicht aufweist und dennoch eine gleichmäßige Verteilung des Gases in der Flüssigkeit gewährleistet.The object of the present invention is therefore to provide a gassing device which does not have the disadvantages of the gassing hoses and nevertheless ensures a uniform distribution of the gas in the liquid.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in der Flüssigkeit mindestens ein Hohlkörper aus festem Material angeordnet ist der mindestens einen Austrittskanal für den Austritt des Gases in die Flüssigkeit aufweist, dessen Achse in einem Winkel von ca. 5° bis ca. 40° gegen die Horizontale nach unten geneigt ist.This object is achieved in that at least one hollow body made of solid material is arranged in the liquid and has at least one outlet channel for the exit of the gas into the liquid, the axis of which is at an angle of approximately 5 ° to approximately 40 ° to the Horizontal is inclined downwards.
Da der Hohlkörper aus festem Material gefertigt ist, ist ein Aufquellen der Begasungsvorrichtung aufgrund von Chemikalieneinwirkung und ein damit verbundenes Schließen der Gasaustrittsöffnung nicht möglich. Das Material für die Begasungsvorrichtung wird entsprechend dem jeweiligen Einsatzfall ausgewählt. Besonders geeignet sind chemikalienresistenter Kunststoff, Edelstahl und Messing. Durch die schräg nach unten austretenden Gasstrahlen wird die Aufstiegsgeschwindigkeit der umgebenden Flüssigkeit, d.h. die sogenannte Kaminwirkung aufgrund aufsteigender Gasblasen, verringert. Wegen der damit verbundenen längeren Verweilzeit der Gasblasen in der Flüssigkeit wird die Gasausnutzung verbessert.Since the hollow body is made of solid material, it is not possible for the gassing device to swell due to the action of chemicals and for the gas outlet opening to be closed. The material for the gassing device is selected according to the respective application. Chemical-resistant plastic, stainless steel and brass are particularly suitable. The rate of rise of the surrounding liquid, ie the so-called chimney effect due to rising gas bubbles, reduced. Because of the longer residence time of the gas bubbles in the liquid, the gas utilization is improved.
Vorzugsweise ist der Austrittskanal als Flachstrahldüse mit horizontaler Strahlaufweitung ausgebildet. Flachstrahldüsen sind an sich bekannt und zeichnen sich dadurch aus, daß der austretende Gasstrahl in einer Ebene breit aufgefächert wird. Im vorliegenden Fall wird die Flachstrahldüse zweckmäßigerweise so angeordnet, daß die Strahlaufweitung in horizontaler Richtung erfolgt, damit eine möglichst gleichmäßige Gasverteilung in der Flüssigkeit rings um die Begasungsvorrichtung erreicht wird.The outlet channel is preferably designed as a flat jet nozzle with a horizontal jet expansion. Flat jet nozzles are known per se and are distinguished by the fact that the exiting gas jet is fanned out broadly in one plane. In the present case, the flat jet nozzle is expediently arranged in such a way that the jet expansion takes place in the horizontal direction, so that the most uniform gas distribution in the liquid is achieved around the gassing device.
Gemäß einer besonders bevorzugten Ausführungsform der Erfindung ist der Hohlkörper zumindest im Bereich des Austrittskanals in Form eines Kegelstumpfes mit vertikaler Achse und einem sich nach oben erweiternden Außendurchmesser ausgebildet. Es entsteht so eine Kegelkopfdüse mit seitlich schräg nach unten gerichtetem Austrittskanal. Das in dem Kegelstumpf nach oben strömende Gas erfährt im Bereich des Austrittskanals eine Umlenkung zur Seite und nach unten, so daß es schließlich mit einem Winkel von ca. 5° bis ca. 40° gegen die Horizontale nach unten geneigt durch den Austrittskanal in die umgebende Flüssigkeit austritt. Dabei sind zweckmäßigerweise mehrere, vorzugsweise ca. 2 bis 8, Austrittskanäle in dem Hohlkörper angebracht, um eine gleichmäßige Verteilung des Gases rings um den Hohlkörper zu erreichen. Die Austrittskanäle weisen vorzugsweise einen Durchmesser von ca. 0,5 bis ca. 2 mm auf.According to a particularly preferred embodiment of the invention, the hollow body is formed at least in the region of the outlet channel in the form of a truncated cone with a vertical axis and an outer diameter widening upwards. The result is a cone-head nozzle with an outlet channel directed obliquely downwards. The gas flowing upwards in the truncated cone is deflected to the side and downwards in the region of the outlet channel, so that it finally inclines downward at an angle of approximately 5 ° to approximately 40 ° relative to the horizontal through the outlet channel into the surrounding area Liquid escapes. Several, preferably approximately 2 to 8, outlet channels are expediently provided in the hollow body in order to achieve a uniform distribution of the gas around the hollow body. The outlet channels preferably have a diameter of approximately 0.5 to approximately 2 mm.
Der Hohlkörper ist bevorzugt auf einem Gaszufuhrrohr abnehmbar, z.B. schraubbar, montiert. Auf diese Weise kann der Hohlkörper leicht ausgetauscht werden bzw. können die im Hohlkörper angebrachten Austrittskanäle leicht gereinigt werden, falls sie verstopft sind. Ist der Hohlkörper als Sechskantkopf ausgebildet, so kann die Begasungsvorrichtung mittels eines Sechskantschlüssels einfach abgeschraubt werden. Bei herkömmlichen Begasungsschläuchen ist dagegen ein Ersatz der Begasungseinrichtung kosten- und arbeitsintensiv, bzw. in vielen Fällen gar nicht möglich.The hollow body is preferably removable, for example screwable, mounted on a gas supply pipe. In this way, the hollow body can be easily replaced or the in Hollow body attached outlet channels can be easily cleaned if they are clogged. If the hollow body is designed as a hexagon head, the gassing device can simply be unscrewed using a hexagon wrench. With conventional gassing hoses, on the other hand, replacement of the gassing device is costly and labor-intensive, or in many cases not possible at all.
Vorteilhafterweise sind mehrere Hohlkörper, z.B. 10 bis 20 Stück auf einem Rechen oder Rahmen angeordnet, der am Beckenboden bzw. am Gewässergrund verlegt ist. Auf diese Weise können auch großvolumige Becken bzw. größere Gewässer begast werden.Advantageously, several hollow bodies, e.g. 10 to 20 pieces arranged on a rake or frame, which is laid on the pool floor or on the water bottom. In this way, large-volume pools or larger bodies of water can be fumigated.
Die erfindungsgemäße Begasungsvorrichtung eignet sich zum Gaseintrag in alle denkbaren Flüssigkeiten. Insbesondere ist an einen Einsatz der Begasungsvorrichtung zum Eintrag eines mit Sauerstoff angereicherten Gases oder von technisch reinem Sauerstoff in Abwasser oder Trinkwasser gedacht. Aufgrund der Unempfindlichkeit bei Lagerung, Transport und Montage kann diese einfache, robuste, wiederverwendbare und sofort einsatzbereite Begasungsvorrichtung besonders gut als Sauerstoffnotbegasungsanlage für überlastete Kläranlagen oder zur Gewässersanierung eingesetzt werden.The gassing device according to the invention is suitable for introducing gas into all conceivable liquids. In particular, the gassing device is intended to be used to introduce an oxygen-enriched gas or technically pure oxygen into waste water or drinking water. Because it is insensitive to storage, transport and assembly, this simple, robust, reusable and immediately ready-to-use gassing device can be used particularly well as an emergency oxygen gassing system for overloaded sewage treatment plants or for water purification.
Mit der erfindungsgemäßen Begasungsvorrichtung sind eine ganze Reihe von Vorteilen verbunden. Die Erfindung macht z.B. einen Sauerstoffeintrag auch in problematische Chemieabwässer möglich. Da die Begasungsvorrichtung leicht ausgetauscht, bzw. gereinigt werden kann, eignet sie sich z.B. auch für Abwässer aus Papierfabriken, in denen Kalk in hohem Maß ausfällt. Mit der erfindungsgemäßen Begasungsvorrichtung wird eine gleichmäßige Verteilung der Gasblasen erreicht. Bei optimaler Einstellung des Gasdurchsatzes wird eine große Reichweite der einzelnen Flachstrahlen erzielt. Je nach Gasdurchsatz kann eine fein- bis mittelblasige Gasverteilung eingestellt werden. Durch die schräg nach unten austretenden Gasstrahlen wird die Aufstiegsgeschwindigkeit des umgebenden Wassers verringert, wodurch der Gasausnutzungsgrad erhöht wird. Außerdem ist kein zusätzlicher Energiebedarf wie z.B. bei Injektor- oder Zweistoffdüsen notwendig.A whole series of advantages are associated with the gassing device according to the invention. The invention makes it possible, for example, to introduce oxygen into problematic chemical waste water. Since the gassing device can be easily exchanged or cleaned, it is also suitable, for example, for wastewater from paper factories where lime precipitates to a large extent. With the gassing device according to the invention, a uniform distribution of the gas bubbles is achieved. With optimal setting of the gas throughput achieved a large range of the individual flat beams. Depending on the gas throughput, a fine to medium-bubble gas distribution can be set. Due to the gas jets emerging obliquely downwards, the rate of ascent of the surrounding water is reduced, which increases the gas utilization rate. In addition, no additional energy is required, such as with injector or two-component nozzles.
Im folgenden soll die Erfindung anhand eines in der Zeichnung schematisch dargestellten Ausführungsbeispiels näher erläutert werden.In the following, the invention will be explained in more detail using an exemplary embodiment schematically illustrated in the drawing.
In der Figur ist eine Kegelkopfdüse in der Seitenansicht und im Längsschnitt gezeigt.In the figure, a cone head nozzle is shown in side view and in longitudinal section.
Im vorliegenden Ausführungsbeispiel ist der Hohlkörper 2 im Bereich der Austrittskanäle 3 in Form eines sich nach oben hin erweiternden Kegelstumpfes mit vertikaler Achse ausgebildet. Es entsteht so eine Kegelkopfdüse, die seitliche, in einem Winkel von ca. 15° gegen die Horizontale nach unten geneigte Austrittskanäle 3 aufweist. Die Austrittskanäle sind als Bohrungen mit einem Durchmesser von ca. 1 mm ausgebildet. Insgesamt sind 5 Bohrungen über den Umfang des Kegelstumpfes gleichmäßig verteilt angebracht. Der Kegelstumpf ist innen hohl und weist an seinem unteren Ende einen Innendurchmesser von ca. 10 mm auf. Oberhalb und unterhalb des kegelstumpfförmigen Abschnitts weist der Hohlkörper 2 einen sechskantigen Umfang auf, so daß ein herkömmlicher Sechskantschlüssel angesetzt werden kann, um den Hohlkörper 2 an- und abzuschrauben. In seinem unteren Teil geht der Hohlkörper 2 in einen Rohrabschnitt 1 über, der ein Innengewinde aufweist. Über den Rohrabschnitt 1 ist der Hohlkörper 2 auf einem, in der Figur nicht dargestellten, Gaszufuhrrohr schraubbar angebracht. Auf diese Weise bracht. Auf diese Weise kann der Hohlkörper 2 durch einfaches Ab- und Anschrauben ausgetauscht werden. Das Gaszufuhrrohr steht mit einem ebenfalls nicht dargestellten Rahmen in Verbindung, auf dem mehrere, z.B. 10 bis 20, Hohlkörper 2 montiert sind. Der Rahmen kann beispielsweise auf dem Beckenboden eines Belebungsbeckens einer Kläranlage installiert sein oder auf einem Gewässergrund liegen.In the present exemplary embodiment, the
Der Hohlkörper 2 ist so auf dem Rahmen montiert, daß seine Längsmittelachse vertikal ausgerichtet ist. Das im Rohrabschnitt 1 nach oben strömende Gas wird im kegelstumpfförmigen Abschnitt zur Seite und schräg nach unten abgelenkt, so daß es schließlich als Gasstrahl mit einem Winkel von ca. 15° gegen die Horizontale nach unten geneigt in die umgebende Flüssigkeit austritt.The
Jeder Austrittskanal 3 weist an seiner Austrittsöffnung eine vorzugsweise ca. 1-1,5 mm tiefe Einkerbung auf, die eine seitliche Aufweitung des Gasstrahls bewirkt.At its outlet opening, each outlet channel 3 has a notch, preferably approximately 1-1.5 mm deep, which causes the gas jet to expand laterally.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4039785A DE4039785A1 (en) | 1990-12-13 | 1990-12-13 | DEVICE FOR GAS ENTRY IN LIQUIDS |
| DE4039785 | 1990-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0490350A1 true EP0490350A1 (en) | 1992-06-17 |
Family
ID=6420218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91121189A Withdrawn EP0490350A1 (en) | 1990-12-13 | 1991-12-10 | Device for introducing gas into liquids |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0490350A1 (en) |
| DE (1) | DE4039785A1 (en) |
| PT (1) | PT99780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016080A1 (en) * | 2005-04-08 | 2006-10-19 | Technocon Gmbh | Device for biological cleaning of wastewater, comprises reaction container which contains microorganism and has base and side walls, nozzles diagonally and horizontally arranged in the container and submerged pump to promote the wastewater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20017368U1 (en) | 2000-10-10 | 2000-12-21 | REHAU AG + Co., 95111 Rehau | Device for use in waste water facilities |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1123628B (en) * | 1960-02-03 | 1962-02-08 | Mannesmann Ag | Compressed air pipes made of plastic to be laid in water as an air shower |
| US3318098A (en) * | 1964-01-03 | 1967-05-09 | William M Hoddinott | Waterway de-icing apparatus |
| GB1272047A (en) * | 1971-04-06 | 1972-04-26 | William Ewert Scragg | Improvements in and relating to aerators |
| DE2359638B1 (en) * | 1973-11-30 | 1975-04-17 | Willi 6369 Schoeneck Horcher | Device for aerating waste water or similar liquids with fine bubbles |
| JPS6068036A (en) * | 1984-08-17 | 1985-04-18 | Seitetsu Kagaku Co Ltd | Fluid contacting device |
-
1990
- 1990-12-13 DE DE4039785A patent/DE4039785A1/en not_active Withdrawn
-
1991
- 1991-12-10 EP EP91121189A patent/EP0490350A1/en not_active Withdrawn
- 1991-12-12 PT PT99780A patent/PT99780A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1123628B (en) * | 1960-02-03 | 1962-02-08 | Mannesmann Ag | Compressed air pipes made of plastic to be laid in water as an air shower |
| US3318098A (en) * | 1964-01-03 | 1967-05-09 | William M Hoddinott | Waterway de-icing apparatus |
| GB1272047A (en) * | 1971-04-06 | 1972-04-26 | William Ewert Scragg | Improvements in and relating to aerators |
| DE2359638B1 (en) * | 1973-11-30 | 1975-04-17 | Willi 6369 Schoeneck Horcher | Device for aerating waste water or similar liquids with fine bubbles |
| JPS6068036A (en) * | 1984-08-17 | 1985-04-18 | Seitetsu Kagaku Co Ltd | Fluid contacting device |
Non-Patent Citations (2)
| Title |
|---|
| GB-A- (22014A,D,1914 (HUCKS)) * |
| PATENT ABSTRACTS OF JAPAN vol. 9, no. 200 (C-298)(1923) 16. August 1985 & JP-A-60 068 036 ( SEITETSU KAGAKU ) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016080A1 (en) * | 2005-04-08 | 2006-10-19 | Technocon Gmbh | Device for biological cleaning of wastewater, comprises reaction container which contains microorganism and has base and side walls, nozzles diagonally and horizontally arranged in the container and submerged pump to promote the wastewater |
| DE102005016080B4 (en) * | 2005-04-08 | 2009-10-29 | Technocon Gmbh | Device for biological cleaning of waste water, has a reaction container containing microorganisms in which the waste water and gas are supplied over two tubes existing out of two component nozzles concentrically arranged with one another |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4039785A1 (en) | 1992-06-17 |
| PT99780A (en) | 1993-11-30 |
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