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WO2001025159A1 - Dispositif pour aerer des eaux naturelles et artificielles stagnantes ou non, des cuves, des reservoirs et des bassins - Google Patents

Dispositif pour aerer des eaux naturelles et artificielles stagnantes ou non, des cuves, des reservoirs et des bassins Download PDF

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Publication number
WO2001025159A1
WO2001025159A1 PCT/DE2000/003511 DE0003511W WO0125159A1 WO 2001025159 A1 WO2001025159 A1 WO 2001025159A1 DE 0003511 W DE0003511 W DE 0003511W WO 0125159 A1 WO0125159 A1 WO 0125159A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
water
support element
aerating
ventilation
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
PCT/DE2000/003511
Other languages
German (de)
English (en)
Inventor
Hans Kaufmann
Wolfgang Kühne
Alexander Polster
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.)
Uta Umwelttechnik & Analytik GmbH
Original Assignee
Uta Umwelttechnik & Analytik GmbH
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 DE2000104077 external-priority patent/DE10004077C1/de
Application filed by Uta Umwelttechnik & Analytik GmbH filed Critical Uta Umwelttechnik & Analytik GmbH
Priority to EP00982955A priority Critical patent/EP1409420A1/fr
Publication of WO2001025159A1 publication Critical patent/WO2001025159A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C02F3/20—Activated sludge processes using diffusers
    • 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
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • 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
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23114—Mounting the bubbling devices or the diffusers characterised by the way in which the different elements of the bubbling installation are mounted
    • B01F23/231142—Mounting the gas transporting elements, i.e. connections between conduits
    • 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
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23115—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle
    • B01F23/231154—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle the bubbling devices being provided with ballast to keep them floating under the surface, i.e. when the bubbling devices are lighter than the liquid
    • 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
    • B01F23/23124—Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • 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
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
    • 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
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/503—Floating mixing devices
    • 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

Definitions

  • the invention relates to a device for the targeted aeration of standing or flowing waters, in particular ponds or rivers and containers, tanks and basins.
  • Application cases arise, for example, for aeration in the entire wastewater area, such as sand traps, biological cleaning stages or beauty ponds, for water remediation or for fish ponds.
  • a fine-bubble oxygen entry with a long residence time of the gas bubbles is desirable.
  • aeration devices should preferably be positioned on the pelvic or river bed.
  • the fine-bubble ventilation enables a high surface area and thus contact area between gas bubbles and liquid, which increases the transitional capacity in dissolved oxygen in connection with a long ascent time.
  • the principle of a membrane hose is the standard. Thanks to its perforation, this flexible hose is able to introduce oxygen into the surrounding liquid medium when exposed to air.
  • Various constructions exist for holding this hose which are unsuitable for certain purposes, in particular for the aeration of natural waters with uneven basic structures.
  • the task to be solved is to keep a ventilation element designed as a flexible hose so horizontal that a uniform air outlet is ensured.
  • the entire aeration device must be designed in such a way that it rests in the working position on the water's edge, but can be floated to another area of the water and transported to the surface of the water and removed if necessary.
  • the ventilation device consists essentially of a support structure and the ventilation element.
  • the use of a tube material and the connection of an air supply hose make it possible for the support tube to be filled with air. Because of the liquid that is displaced as a result, there is a buoyancy which, together with the buoyancy of the membrane hose charged with air, causes the system to float.
  • this ratio between sinking and buoyancy is set so that the sinking force predominates slightly. This enables the system to be near the floating state. This function allows the entire construction to be raised and lowered. In the floating state, this means easy installation with exact positioning in the water or in the area to be aerated System volume, maintenance and expansion or relocation of the ventilation device possible.
  • the linear weight distribution of the support tube creates a uniform sinking force over the length of the hose, which together with the static behavior of the
  • Steel pipe serves to compensate for unevenness in the water bed.
  • the physically determined properties of the membrane hose lead to an uneven opening of the perforations when the positioning or deflection is greater than 40 cm in height, so that the introduction of oxygen in the lowered area of the system is severely restricted. With the newly developed system, these negative properties of the membrane hose are largely prevented by the connection to the steel tube.
  • the floatability of the system makes it possible to find an optimal position of the aeration device in the water without additional manipulations.
  • the device according to the invention can easily be aligned horizontally if required using additional devices, such as floats and / or sinking bodies.
  • the ventilation hose floats over the support tube, which acts as a sinker. By pushing air into the supporting tube, the water that has penetrated through the opening is displaced, so that the entire construction becomes lighter and floats. So this can be easily implemented.
  • the air emerging from the support tube from the opening indicates the respective position of the device on the surface of the water by air bubbles.
  • the membrane hose used enables fine to medium-bubble ventilation depending on the material.
  • FIG. 1 installation sketch with a lowered ventilation system from a ventilation duct
  • FIG. 2 detailed view of the support tube with attached ventilation system
  • the device according to the invention is to be used for aeration of a pond.
  • a blower station 1 located in the bank area 2 provides the required amount of air with excess pressure. This is fed via a control valve 10 via a flexible air hose 5 to a ventilation hose designed as a membrane hose 8, which is closed at its other end with a blind cap 13.
  • a control valve 10 there is a branch in the air line to the control valve 11, to which a second air line 4 leads to a flood pipe 7, which acts as a supporting element.
  • the control valve 11 is closed when the system is ready for operation.
  • the flood pipe 7 is open at its other end 14, so that it is filled by water ingress.
  • the weight force of the filled flood tube 7 is greater than the buoyancy force of the overall system, so that the structure rests on the water bed 3.
  • the membrane hose 8 is inflated by the compressed air. Due to its perforation, the compressed air emerges in fine bubbles.
  • the bubble size can be influenced by changing the blower output. As the air bubbles rise, the aerated water area 9 located above the system is enriched with oxygen. The upward movement of the gas bubbles creates a vertical flow of water to the surface of the water 15, as a result of which the resulting suction leads to a circulation and mixing of the water layers.
  • the control valve 11 To transfer the system to the floating state, the control valve 11 must be opened and the vent valve 12 must be closed. If the blower station 1 has sufficient air generated quantity and excess pressure, the water located in the flood pipe 7 is pressed out, so that an additional buoyancy arises and the system rises to the surface 15 of the water. In this operating state, the device can be shifted from the shore by means of tether cables or by boat within the water. This swimming function can also preferably be used for easier insertion or removal from the pond, as well as for control and maintenance purposes.
  • the membrane tube 8 is held approximately every 30 cm via plastic retaining clips 6, which are snapped onto the flood tube 7. The buoyancy and sinking forces are transmitted via these elements. Their distance on the flood tube is selected so that there is no bulging of the membrane tube 8 in the lowered state.
  • the length of such a ventilation hose can be variable and, for example, can be up to 30 m.
  • the device can be completed with further functional elements such as a check valve between the air hose 5 and the membrane hose 8, thus preventing water from entering the membrane hose 8 from filling the air hose 5 when the ventilation is switched off. This can be advantageous in order to reduce the amount of water penetrating through the perforation.
  • the ventilation is restarted, they are pressed out of the hose the other way round.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

L'invention concerne un dispositif pour aérer de manière ciblée des eaux naturelles stagnantes ou non, notamment des étangs ou des cours d'eau, des cuves, des réservoirs et des bassins. L'invention vise à maintenir horizontal un élément d'aération se présentant sous la forme d'un tuyau mobile, de façon à assurer une sortie d'air constante. Elle vise également à concevoir le dispositif d'aération de sorte que, une fois en position de travail, il soit en contact avec le bord de l'eau, mais puisse flotter pour être déplacé dans une autre zone aquatique et être transporté ou entraîné à la surface de l'eau. A cet effet, un tuyau d'aération muni d'un raccord d'alimentation en air comprimé est relié à un élément support pouvant être immergé, par l'intermédiaire de clips de retenue en matière plastique, faiblement espacés. Ce tuyau d'aération se présente de préférence sous la forme d'un tuyau à membrane. La longueur de l'élément support correspond approximativement à celle du tuyau d'aération et ledit élément support se présente sous la forme d'un corps immergeable plus lourd que l'eau. Une extrémité de cet élément support est reliée à un raccord d'air et l'autre extrémité est ouverte. La densité relative du dispositif est supérieure à 1.
PCT/DE2000/003511 1999-10-06 2000-10-06 Dispositif pour aerer des eaux naturelles et artificielles stagnantes ou non, des cuves, des reservoirs et des bassins Ceased WO2001025159A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00982955A EP1409420A1 (fr) 1999-10-06 2000-10-06 Dispositif pour aerer des eaux naturelles et artificielles stagnantes ou non, des cuves, des reservoirs et des bassins

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29917394 1999-10-06
DE29917394.1 1999-10-06
DE2000104077 DE10004077C1 (de) 1999-10-06 2000-01-31 Vorrichtung zum Belüften von natürlichen und künstlichen Gewässern, Behältern, Tanks und Becken
DE10004077.2 2000-01-31

Publications (1)

Publication Number Publication Date
WO2001025159A1 true WO2001025159A1 (fr) 2001-04-12

Family

ID=26004119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003511 Ceased WO2001025159A1 (fr) 1999-10-06 2000-10-06 Dispositif pour aerer des eaux naturelles et artificielles stagnantes ou non, des cuves, des reservoirs et des bassins

Country Status (2)

Country Link
EP (1) EP1409420A1 (fr)
WO (1) WO2001025159A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108430614A (zh) * 2015-11-23 2018-08-21 新西兰植物与食品研究所 用于释放气体的方法和设备
US10105659B2 (en) * 2013-03-15 2018-10-23 Claudius Jaeger Dual control lateral air manifold assembly
ES2841428A1 (es) * 2020-01-08 2021-07-08 Villaverde Roberto Gonzalez Instalación de difusores de aireación por ramales individualizados con control automático - manual de estado y limpieza de cada ramal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB226755A (en) * 1924-03-24 1925-01-01 Ernest Albert Brough Improvements in metal drums and like containers
DE3940108A1 (de) * 1989-12-05 1991-06-06 Linde Ag Vorrichtung zur begasung von gewaessern
GB2279648A (en) * 1993-07-07 1995-01-11 Bridon Plc Flexible and hollow members for dispersing bubbles of gas into a liquid medium
FR2771401A1 (fr) * 1997-11-27 1999-05-28 Aqua Tech Procede pour le renouvellement des couches d'eau profondes d'un plan d'eau sans entrainement des sediments et dispositif pour la mise en oeuvre du procede
US6086056A (en) * 1998-04-29 2000-07-11 Leask; Jim Float sink header

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB226755A (en) * 1924-03-24 1925-01-01 Ernest Albert Brough Improvements in metal drums and like containers
DE3940108A1 (de) * 1989-12-05 1991-06-06 Linde Ag Vorrichtung zur begasung von gewaessern
GB2279648A (en) * 1993-07-07 1995-01-11 Bridon Plc Flexible and hollow members for dispersing bubbles of gas into a liquid medium
FR2771401A1 (fr) * 1997-11-27 1999-05-28 Aqua Tech Procede pour le renouvellement des couches d'eau profondes d'un plan d'eau sans entrainement des sediments et dispositif pour la mise en oeuvre du procede
US6086056A (en) * 1998-04-29 2000-07-11 Leask; Jim Float sink header

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10105659B2 (en) * 2013-03-15 2018-10-23 Claudius Jaeger Dual control lateral air manifold assembly
CN108430614A (zh) * 2015-11-23 2018-08-21 新西兰植物与食品研究所 用于释放气体的方法和设备
JP2019501773A (ja) * 2015-11-23 2019-01-24 ザ ニュージーランド インスティテュート フォー プラント アンド フード リサーチ リミティド ガスをリリースするための方法および装置
EP3380219A4 (fr) * 2015-11-23 2019-08-28 The New Zealand Institute for Plant and Food Research Limited Procédé et appareil de libération de gaz
RU2739615C2 (ru) * 2015-11-23 2020-12-28 Дзе Нью Зеланд Институте Фор Плант Энд Фуд Ресерч Лимитед Способ и устройство для высвобождения газа
CN108430614B (zh) * 2015-11-23 2021-05-11 新西兰植物与食品研究所 用于释放气体的方法和设备
AU2016361115B2 (en) * 2015-11-23 2021-05-20 The New Zealand Institute For Plant And Food Research Limited Method and apparatus for releasing gas
JP2022009376A (ja) * 2015-11-23 2022-01-14 ザ ニュージーランド インスティテュート フォー プラント アンド フード リサーチ リミティド ガスをリリースするための方法および装置
JP7337131B2 (ja) 2015-11-23 2023-09-01 ザ ニュージーランド インスティテュート フォー プラント アンド フード リサーチ リミティド ガスをリリースするための方法および装置
ES2841428A1 (es) * 2020-01-08 2021-07-08 Villaverde Roberto Gonzalez Instalación de difusores de aireación por ramales individualizados con control automático - manual de estado y limpieza de cada ramal

Also Published As

Publication number Publication date
EP1409420A1 (fr) 2004-04-21

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