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DE3417039A1 - Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water - Google Patents

Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water

Info

Publication number
DE3417039A1
DE3417039A1 DE19843417039 DE3417039A DE3417039A1 DE 3417039 A1 DE3417039 A1 DE 3417039A1 DE 19843417039 DE19843417039 DE 19843417039 DE 3417039 A DE3417039 A DE 3417039A DE 3417039 A1 DE3417039 A1 DE 3417039A1
Authority
DE
Germany
Prior art keywords
air
water
propeller
rotating
displacement body
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.)
Ceased
Application number
DE19843417039
Other languages
German (de)
Inventor
Guenter Leistner
Kurt Leistner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19843407370 external-priority patent/DE3407370A1/en
Application filed by Individual filed Critical Individual
Priority to DE19843417039 priority Critical patent/DE3417039A1/en
Publication of DE3417039A1 publication Critical patent/DE3417039A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/80—Feeding devices
    • 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
    • B01F23/23312—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 conduit surrounding 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
    • B01F23/2332—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
    • B01F23/2335—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
    • B01F23/2336—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
    • B01F23/23367—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 behind the stirrer
    • 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
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • 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
    • B01F27/60—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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Animal Husbandry (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Zoology (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Apparatuses are known for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water, which are equipped with a driven propeller freely arranged in the water and which divide air fed to this propeller into bubbles and produce a water/air-bubble jet. The oxygen contained in the air diffuses into the water at the air-to-water interfaces. This can be carried out using a hollow body arranged in front of the propeller and having a multiplicity of orifices, preferably rotating, as described in Application P 3407370.1 and DE-C 3139689. Rotating and having protection against dirt is more advantageous. As a development, novel special means counteracting the penetration of dirt into the interior of the apparatus on shut-down are described, and a displacement body rotating with the propeller. For this purpose, an impeller built onto the displacement body and rotating with it sucks external air into the interior of the apparatus and forces it through the component for air outlet, attached to the outer casing of the rotating body, as fine threads of air, into the surrounding water, where they are sheared into fine air bubbles, sucked in by the propeller and ejected axially as a water/air-bubble jet. With self-priming of the air, a greater amount of air is thus entered into the water than is possible by only the suction action of the propeller. <IMAGE>

Description

B e s c h b-u:p.-# Die E ¢ndung betrifft eine Vorrichtung zum Einbringen von Luft in Wasser, Abwasæer gemäß Anmeldung P 34 07 370.1 sowie Patent DE - P 31 39 689 Gegenstand des Hauptpatentes ist ein Vorrichtung der eingangs genannten Art, bei welcher vor dem Arbeitsraum des Axialrades eine Zuführvorrichtung für Behandlungestoff angeordnet ist die eine Vielzahl von kleinen Öffnungen aufweist. DieseZuführvorrichtung kann stationär ausgebildet, oder drehbar um die Axialradachse angeordnet sein.B e s c h b-u: p .- # The invention relates to a device for introduction of air in water, waste water according to application P 34 07 370.1 and patent DE - P 31 39 689 The subject of the main patent is a device of the type mentioned above, in which a feed device for treatment material in front of the working space of the axial wheel is arranged which has a plurality of small openings. This feeding device can be designed to be stationary or rotatable about the axial wheel axis.

Die letztere Ausführung verdient den Vorzug.The latter design deserves preference.

Grundgedanke des Hauptpatentes ist es, die durch die Öffnungen austretenden Fäden von Luft an der Außenfläche der sich drehenden Zuführvorrichtung, also an den nach außen gerichteten Mündungen der Öffnungen abzuscheren, um die zugeführte Luft in eine Vielzahl feinster Bläschen mit einer insgesamt größeren Grenzfläche zum umgebenden Wasser zu zerlegen.The basic idea of the main patent is that exiting through the openings Threads of air on the outer surface of the rotating feeder, i.e. on the outwardly directed mouths of the openings shear off the fed Air in a multitude of very fine bubbles with an overall larger boundary surface to decompose to the surrounding water.

Die für den Einsatz in Schmutzwasser schon vorgesehenen Maßnahmen gegen Eindringen von Schmutz ins Innere des Luftzuführers 10 werden erfindungsgemäß weiter verbessert. Anstatt durch einen, im Raum ruhenden Verdrängerkörper 19 die Menge des bei Stop in den Innenraum des Luftzuführers 10 einströmenden Wassers lediglich zu vermindern, ist neu vorgesehen, daß der Ver-#drängerkörper 19' mit dem Axialrad, Propeller 1 umläuft.The measures already planned for use in wastewater against penetration of dirt into the interior of the air feeder 10 are according to the invention further improved. Instead of a displacer 19 resting in space Amount of the water flowing into the interior of the air feeder 10 when it stops to reduce, it is now provided that the displacement body 19 'with the axial wheel, Propeller 1 rotates.

Ein, an der freien Stirnseite des Verdrängerkörpers 19' angegebautes, mit ihm umlaufendes Flügelrad 23 -wahlweise dort ein- gearbeitete Schrägnuten od. dgl. - saugen Außenluft 8 durch das Rohr 20 nach innen zur Welle 2 .Durch die AustrittSöffnung D strömt die Luft dem innerem Durchmesser des Flügelrades 23 od. dgl. zu um danach von diesem entgegengesetzt nach außen getrieben zu werden.A, on the free face of the displacer 19 'built-on, with it revolving impeller 23 - optionally there a worked Inclined grooves or the like - suck outside air 8 through the pipe 20 inwards to the shaft 2. The air flows through the outlet opening D with the inner diameter of the impeller 23 or the like to then be driven outwards in the opposite direction by this.

ueber dem Flügelrad 23 od.'dg. verhindert eine geschlossene Buchse 25 das direkte Austreten der Luft nach außen, die Luft kann Jedoch in die bis ans Ende der Mantelfläche des Verdrängerkörpers 19' reichenden Längsnuten 24' einströmen.over the impeller 23 or dg. prevents a closed socket 25 the direct exit of the air to the outside, the air can however in the up to ans End of the lateral surface of the displacement body 19 'reaching longitudinal grooves 24' flow.

Von dort dringt die Luft durch das Bauteil 11 für Luftaustritt hindurch und .tritt als feine - infolge der Drehung -nach Abscheren, als feinste Blasen ins umgebende Wasser aus, um als Wasser-Luftblasen-Gemisch vom Propeller 1 angesaugt zu werden.From there, the air penetrates through the component 11 for air to escape and emerges as fine - As a result of the rotation - after shearing off, as very fine bubbles into the surrounding water, in order to be sucked in by the propeller 1 as a water-air bubble mixture.

Beim Aufhören der Drehbewegung ist von außen andrängendem Schmutzwasser das direkte Eindringen ins Innere des Luftzuführers 10 versperrt, es kann nur durch Filterflächen am Bauteil 11 hindurch, an denen sein Schmutz haften bleibt, dieser bis zu neuem Start abgelagert wird.When the turning movement stops, dirty water is pressing in from the outside the direct penetration into the interior of the air feeder 10 is blocked, it can only through Filter surfaces on the component 11 to which its dirt adheres, this is deposited until restart.

Buchse 2 5 und Bauteil 11 für Luftaustritt können auch als ein , vorzugsweise am Verdrängerkörper 19' auswechselbares Stück ausgeführt sein.Socket 2 5 and component 11 for air outlet can also be used as one, preferably be executed on the displacement body 19 'replaceable piece.

Gegen unerwünschten Luftaustritt am Zuführer 9 ist zwischen Buchse 25 und Stutzen 26 ein enger Spalt 17 oder eine Berührungsdichtung ausführbar.Against unwanted air leakage at the feeder 9 is between the socket 25 and connecting piece 26, a narrow gap 17 or a contact seal can be implemented.

Das in sich geschlossene Bauteil 11 für Luftaustritt mit den Eigenschaften eines Filters, das Luft von innen durchströmen lässt, bei Stop den Schmutz aus dem von außen einfließendem Schmutzwasser zurückhält, kann verschieden ~ausgeführt sein und aus verschiedenen Materialien bestehen. The self-contained component 11 for air outlet with the properties a filter that allows air to flow through from the inside and removes the dirt when it stops holds back dirty water flowing in from the outside can be designed in different ways and made of different materials.

Als Beispiel ist in Fig. 2 ein geschlossener Stützmantel mit einem dazu passendem äußerem Stützmantel - beide aus Streckmetall - dargestellt, die eine Zwischenlage aus beispielsweise synthetischen Fasern als Filtermaterial umfassen und abstützen. As an example in Fig. 2 is a closed support jacket with a matching outer support jacket - both made of expanded metal - shown the one Include intermediate layer made of synthetic fibers, for example, as a filter material and support.

Das Bauteil 11 kann wahlweise mit der Buchse 25 fest ver -bunden und auf dem Verdrängerkörper 19' als eine Stück auswechselbar ausgeahrt sein.The component 11 can optionally be firmly connected to the socket 25 and on the displacement body 19 'as one piece to be exchangeable.

- Leerseite -- blank page -

Claims (5)

Vorrichtung zum Einbringen von festem, flüssigem oder gasförmigem Behandlungs-Nahrungsstoff in Wasser, Abwasser. Device for introducing solid, liquid or gaseous Treatment nutrient in water, sewage. Patentansyrüche 1.Vorrichtung zum Einbringen von festem, flüssigem oder gasförmigem Behandlungsstoff-Nahrungsstoff in Wasser, Abwasser mittels eines frei im Wasser angeordnetem, von einem Motor über eine Welle angetriebenen Axialrades bezw. Wasser-Propellers zum Zuführen von Gas, Luft in einen zur Drehachse koaxialen, zylinderförmigen, durch das Axialrad gebildeten Arbeitsraumes, die eine, eine Vielzahl von Öffnungen aufweisende, vor dem Arbeitsraum des Axialrades angeordnete Zuführvorrichtung für den Behandlungsstoff aufweist, insbesondere nach Anmeldung P 34 07 370.1 sowie DE - P 31 39 689 dadurch gekennzeichnet, daß im Luftzuführer ( 10 ) der Verdrängungskörper ( 19' ) anstatt im Raum ruhend, mit dem Axialrad, Propeller ( 1 ) umlaufend angeordnet ist. Patentansyrüche 1. Device for introducing solid, liquid or gaseous treatment material-nutrient in water, waste water by means of a Axial impeller arranged freely in the water, driven by a motor via a shaft respectively Water propeller for supplying gas, air in a cylindrical, coaxial with the axis of rotation the working space formed by the axial wheel, the one, a plurality of openings having, arranged in front of the working space of the axial wheel feed device for has the treatment substance, in particular after registration P 34 07 370.1 and DE - P 31 39 689 characterized in that the displacement body in the air feeder (10) (19 ') instead of resting in space, with the axial wheel, propeller (1) arranged in a circumferential manner is. 2.dadurch gekennzeichnet, daß vorzugsweise an der freien Stirnseite des mit umlaufenden Verdrängerkörpers ( 19' ) ein Flügelrad, oder Schrägnuten ( 23 ) od. dgl. und an dessen Mantelfläche Längsnuten ( 24 ) angeordnet sind, die an der Welle ( 2 ) zugeführte Luft ( 8 ) unter das Bauteil ( 11 ) für Luftaustritt fördern und dort verteilen.2. characterized in that preferably at the free Front side of the rotating displacement body (19 ') an impeller, or inclined grooves ( 23) or. The like. And on the outer surface of which longitudinal grooves (24) are arranged which Air (8) supplied on the shaft (2) under the component (11) for air outlet promote and distribute there. 3.dadurch gekennzeichnet, daß am vorderen Teil der Mantelfläche des Verdrängerkörpers ( 19' ) eine, das Flügelrad oder die Schrägnuten ( 23 ) überdeckende Buchse ( 25 ) das direkte Austreten der geförderten Luft nach außen sperrt und mit dieser zum Stutzen ( 26 ) des Luftzuführers ( 9 ) ein, das Eindringen von Schmutzwasser hindernder enger Spalt ( 17 ) , wahlweise eine Berührungsdichtung od. dgl. anbringbar ist.3. characterized in that the front part of the lateral surface of the Displacement body (19 ') a, the impeller or the inclined grooves (23) covering Socket (25) the direct escape of the conveyed air to the outside locks and with this to the nozzle (26) of the air feeder (9), the penetration Narrow gap (17) preventing dirty water, optionally a contact seal or the like. Can be attached. 4.dadurch gekennzeichnet, daß die das Flügelrad oder dortige Nuten ( 23 ) überdeckende Buchse ( 25 ) und das daneben angeordnete. Bauteil ( 11 ) für Luftaustritt, als ein Stück sowie vorzugsweise auf dem Verdrängerkörper ( 19' ) aus -wechselbar ausgeführt sind.4. characterized in that the impeller or there Grooves (23) covering bushing (25) and the one arranged next to it. Component (11) for Air outlet, as one piece and preferably on the displacement body (19 ') are designed to be exchangeable. 5.dadurch gekennzeichnet, daß das untere Ende des die Außen- luft ( 8 ) zuführenden Rohres ( 20 ) als achsmittiger Zuführring ( 20' ) ausgebildet ist und der verbleibende Innenraum ( 28 ) des Luftzuführers ( 9 ) abgeschottet oder mit einem Wasserabweisendem Material ausgefüllt ist5. characterized in that the lower end of the outer air ( 8) feeding pipe (20) is designed as an axially centered feed ring (20 ') and the remaining interior space (28) of the air feeder (9) is sealed off or is filled with a water-repellent material
DE19843417039 1984-02-29 1984-05-09 Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water Ceased DE3417039A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843417039 DE3417039A1 (en) 1984-02-29 1984-05-09 Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843407370 DE3407370A1 (en) 1984-02-29 1984-02-29 Apparatus for introducing solid, liquid or gaseous treatment agent/nutrient into water, waste water
DE19843417039 DE3417039A1 (en) 1984-02-29 1984-05-09 Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water

Publications (1)

Publication Number Publication Date
DE3417039A1 true DE3417039A1 (en) 1985-11-14

Family

ID=25818935

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843417039 Ceased DE3417039A1 (en) 1984-02-29 1984-05-09 Apparatus for introducing a solid, liquid or gaseous treatment substance/nutrient into water, waste water

Country Status (1)

Country Link
DE (1) DE3417039A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502218A1 (en) * 1989-01-27 1992-09-09 Toyo Denki Industrial Co., Ltd. Apparatus for producing stabilizing mixture
EP0562314A1 (en) * 1992-03-23 1993-09-29 Silvano Becchi Water treatment equipment
WO1997002740A3 (en) * 1995-07-11 1997-03-20 Mauchline Business Services Delivery system
EP0941659A2 (en) 1998-03-09 1999-09-15 Silvano Becchi Device for treating waters in a basin
US6254066B1 (en) * 1999-04-27 2001-07-03 Aqua Partners, Ltd. Apparatus for aerating liquid in a wastewater treatment tank
EP2574395A3 (en) * 2011-09-29 2013-08-14 KSB Aktiengesellschaft Mixing and ventilation device and method for mixing and ventilating
US20160207805A1 (en) * 2013-07-18 2016-07-21 Sun Won Jang Aeration device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502218A1 (en) * 1989-01-27 1992-09-09 Toyo Denki Industrial Co., Ltd. Apparatus for producing stabilizing mixture
EP0562314A1 (en) * 1992-03-23 1993-09-29 Silvano Becchi Water treatment equipment
US5354457A (en) * 1992-03-23 1994-10-11 Silvano Becchi Water treatment equipment
WO1997002740A3 (en) * 1995-07-11 1997-03-20 Mauchline Business Services Delivery system
EP0941659A2 (en) 1998-03-09 1999-09-15 Silvano Becchi Device for treating waters in a basin
US6254066B1 (en) * 1999-04-27 2001-07-03 Aqua Partners, Ltd. Apparatus for aerating liquid in a wastewater treatment tank
EP2574395A3 (en) * 2011-09-29 2013-08-14 KSB Aktiengesellschaft Mixing and ventilation device and method for mixing and ventilating
US20160207805A1 (en) * 2013-07-18 2016-07-21 Sun Won Jang Aeration device
US10202296B2 (en) * 2013-07-18 2019-02-12 Sun Won Jang Aeration device

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