DE3829666A1 - Novel Menzel dome aerator having a rubber membrane - Google Patents

Novel Menzel dome aerator having a rubber membrane

Info

Publication number
DE3829666A1
DE3829666A1 DE19883829666 DE3829666A DE3829666A1 DE 3829666 A1 DE3829666 A1 DE 3829666A1 DE 19883829666 DE19883829666 DE 19883829666 DE 3829666 A DE3829666 A DE 3829666A DE 3829666 A1 DE3829666 A1 DE 3829666A1
Authority
DE
Germany
Prior art keywords
membrane
aerator
air supply
air
closed
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
DE19883829666
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
MENZEL KLAERANLAGENBAU GmbH
Original Assignee
MENZEL KLAERANLAGENBAU 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
Application filed by MENZEL KLAERANLAGENBAU GmbH filed Critical MENZEL KLAERANLAGENBAU GmbH
Priority to DE19883829666 priority Critical patent/DE3829666A1/en
Publication of DE3829666A1 publication Critical patent/DE3829666A1/en
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
    • C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
    • 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
    • B01F23/231262—Diffusers characterised by the shape of the diffuser element having disc shape
    • 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)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Published without abstract.

Description

Für die Belüftung von Abwasser mit Luftsauerstoff ist der Einsatz von Dombelüftern seit Jahren bewährt. Durch die von der Verfahrenstechnik geforderte intermittierende Belüftung wird als Belüfterwerkstoff zunehmend elasti­ sches Material mit glatter Oberfläche z.B. Gummi oder Kunststoff eingesetzt. Hierdurch werden Ablagerungen und Verstopfungen vermieden bzw. beim Anfahren wieder abge­ worfen. Gleichzeitig muß beim Abstellen der Luftzufuhr ein Eindringen des Wassers in das Belüftungssystem verhindert werden. Eine weitere Forderung an den Belüfter sind ein möglichst geringer Widerstand zur Reduzierung des Energieverbrauches sowie ein gleichmäßiger Luftaus­ tritt über der Behälteroberfläche zur Vermeidung von Luftwalzen und Luftkanälen mit entsprechend verschlech­ teter Luft-Sauerstoffausnutzung. Diese Forderungen werden mit dem erfindungsgemäßen Belüfter in einfacher und wirtschaftlicher Form, was Herstellung und Betrieb des Belüfters betrifft, erreicht. Der Belüfter besteht im wesentlichen aus dem Trägerkörper (1), bevorzugt ausge­ führt als Ronde aus Kunststoff oder Edelstahl, die zentral über Anschlußstutzen (2) an die Luftzufuhr (3) angeschlossen wird. Die Membrane (4) mit Luftöffnungen (8), wird mit abgestimmter Vorspannung mittels Klemmvor­ richtung o. ä. (5) am Trägerkörper festgespannt. Die neuartige Ausführung des Rückschlagventiles besteht im wesentlichen aus einer ventilsitzartigen Ausbildung (6) des Luftzuführstutzens (2) oder des Trägerkörpers (1) in Verbindung mit einer geschlossenen Ausführung der Mem­ brane (4) oberhalb der Luftzufuhr. Damit senkt sich durch den Wasserdruck die Membrane (4) beim Abschalten der Luftzufuhr automatisch auf den Ventilsitz (6) und ein Wassereintritt in das Belüftungssystem (2)+(3) wird ausgeschlossen. Gleichzeitig verbessert die oberhalb der Luftzufuhr (2) dicht ausgeführte Belüftermembrane (7) wesentlich die Luftverteilung in Bezug auf Kanal und Walzenbildung.Dome aerators have been used for years to ventilate wastewater with atmospheric oxygen. Due to the intermittent ventilation required by process engineering, elastic material with a smooth surface, such as rubber or plastic, is increasingly being used as the aerator material. In this way, deposits and blockages are avoided or thrown off again when starting off. At the same time, water must be prevented from entering the ventilation system when the air supply is switched off. Another requirement for the aerator is the lowest possible resistance to reduce energy consumption and a uniform air outlet over the surface of the container to avoid air rollers and air ducts with correspondingly impaired air-oxygen utilization. These requirements are achieved with the aerator according to the invention in a simple and economical form, as far as the manufacture and operation of the aerator is concerned. The aerator consists essentially of the carrier body ( 1 ), preferably leads out as a round plate made of plastic or stainless steel, which is connected centrally via connection piece ( 2 ) to the air supply ( 3 ). The membrane ( 4 ) with air openings ( 8 ) is clamped to the carrier body with a coordinated preload by means of a clamping device or the like (5). The new design of the check valve consists essentially of a valve seat-like design ( 6 ) of the air supply nozzle ( 2 ) or the support body ( 1 ) in conjunction with a closed design of the membrane ( 4 ) above the air supply. As a result, the water pressure automatically lowers the diaphragm ( 4 ) to the valve seat ( 6 ) when the air supply is switched off and prevents water from entering the ventilation system ( 2 ) + ( 3 ). At the same time, the aerator membrane ( 7 ), which is tightly sealed above the air supply ( 2 ), significantly improves the air distribution in relation to the channel and the formation of rollers.

Claims (4)

1. Membranbelüfter dadurch gekennzeichnet, daß ober­ halb der Luftzufuhr das Zufuhrrohr oder der Mem­ brankörper als Ventilsitz oder Dichtung ausgebildet werden und die Belüftermembrane in diesem Bereich geschlossen ausgeführt wird und somit durch den Wasserdruck die Luftzufuhrleitung verschließt.1. Membrane aerator characterized in that the upper half of the air supply, the feed tube or Mem brankody are formed as a valve seat or seal and the aerator membrane is closed in this area and thus closes the air supply line by the water pressure. 2. Membranbelüfter dadurch gekennzeichnet, daß ge­ schlossener Membrangummi oberhalb der Luftzufuhr eine bessere Luftverteilung durch Vermeidung von Luftkanälen und Walzen ermöglicht.2. Membrane aerator characterized in that ge closed membrane rubber above the air supply better air distribution by avoiding Allows air channels and rollers. 3. Membranbelüfter dadurch gekennzeichnet, daß die Luftzufuhr als O-Ring sich bei Luftabschaltung gegen den geschlossenen Membrangummi abdichtet und somit ein Wassereindringen in das Belüftungssystem vermieden wird.3. Membrane aerator characterized in that the Air supply as an O-ring when the air is switched off seals against the closed membrane rubber and thus water penetration into the ventilation system is avoided. 4. Belüfterausführung dadurch gekennzeichnet, daß die Belüftermembrane oberhalb der Luftzufuhr abgedeckt wird und gegen einen unterhalb der Membrane angeord­ neten Ventilsitz verschließt.4. aerator design characterized in that the Aerator membrane covered above the air supply is placed against one below the membrane Neten valve seat closes.
DE19883829666 1988-09-01 1988-09-01 Novel Menzel dome aerator having a rubber membrane Ceased DE3829666A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883829666 DE3829666A1 (en) 1988-09-01 1988-09-01 Novel Menzel dome aerator having a rubber membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883829666 DE3829666A1 (en) 1988-09-01 1988-09-01 Novel Menzel dome aerator having a rubber membrane

Publications (1)

Publication Number Publication Date
DE3829666A1 true DE3829666A1 (en) 1990-03-08

Family

ID=6362055

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883829666 Ceased DE3829666A1 (en) 1988-09-01 1988-09-01 Novel Menzel dome aerator having a rubber membrane

Country Status (1)

Country Link
DE (1) DE3829666A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549518A1 (en) * 1991-12-20 1993-06-30 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Apparatus for introducing gas into a liquid
DE19516395A1 (en) * 1995-05-04 1996-11-07 Werkstoff & Funktion Grimmel W Waste water assembly aerators used alternately as air inlet and water filter outlets
DE19722781A1 (en) * 1997-05-30 1998-12-03 Ott Rita Gassing unit for liquids, especially for aerating waste water
EP1041043A2 (en) * 1999-03-25 2000-10-04 Jäger, Arnold Water aerator of the plate type
CN100479906C (en) * 2007-04-30 2009-04-22 华南理工大学 Film-type boring aeration pipe
EP2075053A1 (en) * 2007-12-31 2009-07-01 Environmental Dynamics, Inc. Disk diffuser with improved seal, in particular for waste water treatment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549518A1 (en) * 1991-12-20 1993-06-30 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Apparatus for introducing gas into a liquid
DE19516395A1 (en) * 1995-05-04 1996-11-07 Werkstoff & Funktion Grimmel W Waste water assembly aerators used alternately as air inlet and water filter outlets
DE19722781A1 (en) * 1997-05-30 1998-12-03 Ott Rita Gassing unit for liquids, especially for aerating waste water
EP1041043A2 (en) * 1999-03-25 2000-10-04 Jäger, Arnold Water aerator of the plate type
EP1041043A3 (en) * 1999-03-25 2002-06-05 Jäger, Arnold Water aerator of the plate type
CN100479906C (en) * 2007-04-30 2009-04-22 华南理工大学 Film-type boring aeration pipe
EP2075053A1 (en) * 2007-12-31 2009-07-01 Environmental Dynamics, Inc. Disk diffuser with improved seal, in particular for waste water treatment
US8061689B2 (en) 2007-12-31 2011-11-22 Environmental Dynamics, Inc. Disk diffuser with improved seal

Similar Documents

Publication Publication Date Title
EP0160193A1 (en) Apparatus for gas dispersion in liquids
DE69207405T2 (en) DEVICE FOR THE GASIFICATION OF LIQUIDS
US3754740A (en) Gas distributor
DE3829666A1 (en) Novel Menzel dome aerator having a rubber membrane
ES2066472T3 (en) AERATION NOZZLE TO AERATE LIQUIDS CONTAINING ORGANIC SUBSTANCES.
DE3600234C2 (en) Device for aerating water
DE2035651A1 (en) Device for fine-bubble aerating liquids, in particular waste water, and method for operating the device
DE3441731A1 (en) Aeration element
DE202015106563U1 (en) Perforated membrane aerator
EP3570966B1 (en) Ventilation element
EP0444585B1 (en) Clarification vessel
DE59404015D1 (en) Sanitary safety device to prevent water from flowing back
DE3834317C1 (en) Apparatus for introducing gas into a liquid
DE2257086A1 (en) Immersed aeration nozzle assembly - for aerobic sewage treatment tank
DE19749411C1 (en) Biological water treatment membranes subjected to intermittent reverse- flow
JPH0889959A (en) Water purification device
DE3600232A1 (en) Disc-like water aerator
EP0806400A1 (en) Bent aerator
DE10119013A1 (en) Aeration rotor for waste- and potable waters, comprises holder with circumferentially-distributed edge penetrations and plate projections passing through them
EP0999187A1 (en) Device for introducing gas into solid-liquid mixtures and liquids
DE102008029273B4 (en) Device for gassing a liquid, in particular for aerating wastewater, and clarifiers
DE9013851U1 (en) Membrane aerator
DE2718425A1 (en) Intermittent sewage aeration device - with rubber hose surrounding tubes with bottom holes slotted except in bottom sector
DE3720922A1 (en) Apparatus for aerating water
DE2359638B1 (en) Device for aerating waste water or similar liquids with fine bubbles

Legal Events

Date Code Title Description
8131 Rejection