WO2012062269A1 - Elévateur à air comprimé d'eau épurée pour installations d'épuration biologiques, procédé pour son fonctionnement et son utilisation - Google Patents

Elévateur à air comprimé d'eau épurée pour installations d'épuration biologiques, procédé pour son fonctionnement et son utilisation Download PDF

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Publication number
WO2012062269A1
WO2012062269A1 PCT/DE2011/001884 DE2011001884W WO2012062269A1 WO 2012062269 A1 WO2012062269 A1 WO 2012062269A1 DE 2011001884 W DE2011001884 W DE 2011001884W WO 2012062269 A1 WO2012062269 A1 WO 2012062269A1
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WO
WIPO (PCT)
Prior art keywords
pipe
water
compressed air
clear water
siphon
Prior art date
Application number
PCT/DE2011/001884
Other languages
German (de)
English (en)
Inventor
Hubert PRÄDEL
Original Assignee
PRÄDEL, Birgit
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 PRÄDEL, Birgit filed Critical PRÄDEL, Birgit
Publication of WO2012062269A1 publication Critical patent/WO2012062269A1/fr

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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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1263—Sequencing batch reactors [SBR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0006—Settling tanks provided with means for cleaning and maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • 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
    • C02F3/22—Activated sludge processes using circulation pipes
    • C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
    • 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 present invention relates to a clear water compressed air lifter for biological treatment plants with backwash function to prevent or reduce the discharge of activated sludge particles, a method for its operation and its use
  • Air lifters In almost all biological sewage treatment plants, which do not work with electric underwater pumps, but with a compressed air generator, also called compressor or compressor, work, compressed air lifters are necessary to promote the domestic wastewater from one basin to another, or the resulting clear water in the flow of To pump sewage treatment plant.
  • Air lifters consist of a tube open on both sides with a compressed air connection on the side. The air jacks are mounted vertically in the treatment plants so that the compressed air connection is as far below the water level as possible, that the suction opening of the pipe can aspirate water at the desired height and the outlet opening of the pipe is placed where the pumped water is to be discharged.
  • the siphon tube above the compressed air connection is well filled with water
  • the compressed air generator switched on, the compressed air flows through the air inlet opening into the siphon tube and conveys the water vertically upwards.
  • the resulting air bubbles tear the surrounding water in the pipe upwards and thus promote the inflowing water through the outlet opening of the siphon tube.
  • the sewage treatment cycle begins again with the feed pumping time, in which the feed lifter pumps the pre-treatment water into the reactor in preprogrammed time.
  • the compressed air for the feed lifter, for the plate ventilator and for the clear water or excess sludge lifter is switched via individual electromagnetically actuated valves. These valves are supplied with compressed air via a compressed air compressor.
  • the prior art air-lift devices are designed so that their suction port is below the water surface and the pump down operation is achieved when water can no longer flow over the lower edge of the suction port (see FIG. 1). Due to this need to pump out the upper clear water area and not the underlying area of settled bacteria, it is necessary to drive the suction pipe following the intake pipe vertically downwards and over a U-shaped 360 degree arc with the following vertically upwards to connect the following siphon pipe. So that buoyancy forces of the compressed air bubbles flowing into the siphon pipe are greatest, the air inlet opening attached laterally to the siphon pipe must be as deep as possible, but above the pipe bend.
  • the so designed by almost all manufacturers clear water has the disadvantage that the pre-treatment runs when filling the reactor by means of feed lifter in the intake of the clear water lifter and can settle there floating particles.
  • the pollution of the clear water is done in systems according to the prior art far from intensive in the subsequent aeration process by the ascending when switching the plate, tube, Membranbelindividuers air bubbles increase first in the water volume in the reactor and secondly swirl the settled activated sludge bacteria in the reactor water , So that they pass through the increase in volume also through the intake into the intake pipe of the clear water jack and also settle there.
  • the ventilation period in the reactor of an SBR treatment plant often takes several hours.
  • the plate or Rohrmembranbelpartyer is therefore switched on and off during this period in the preselected cycle, so that at least every time ventilation begins again and again activated sludge bacteria are pressed because of the volume increase described in the clear water.
  • the activated sludge bacteria are heavier than water, they sink down in the intake pipe and fill the pipe bends, which connect the intake pipe and the siphon pipe. At the beginning of the clear water pumping time, the clear water lift conveys these deposits into the wastewater treatment plant effluent.
  • a clear water lifter should be designed so that no water-activated sludge mixture can penetrate into the intake, or this sedimented activated sludge is flushed back from the clear water jack before the clear water pumping time in the reactor and thereby the siltation of infiltrations, as well as the contamination of bodies of water is avoided.
  • non-return flaps are attached to the intake openings of the clear water lift tube so that the activated sludge bacteria can not penetrate there.
  • Many years of experience have shown that the hair floating in the sewage or similar parts wrap around the movable flaps or valves in such a way that the desired closure forces no longer have an effect after some time or have to be constantly cleaned by time-consuming maintenance work.
  • DE 20 2005 003 588 Ul discloses a small wastewater treatment plant with a pre-clearing chamber and a secondary clarifier, wherein in each chamber at least one air lift is provided, with the air under the appropriate medium in the sense of lifting from the respective chamber is conveyed, the associated with each air lift, to a compressed air unit connected compressed air line is arranged in a lifting line, wherein the medium is guided by the intermediate space formed between the outer wall of the compressed air line and the inner wall of the lifting line.
  • DE 24 20 076 AI discloses a device for continuous introduction of oxygen into waste water under increased, hydrostatic pressure, wherein a gas inlet is disposed in the lower part of a shaft, and arranged a liquid inlet and a liquid outlet at a disposed above the shaft, associated with this reservoir is.
  • a method for the treatment of waste water which comprises a stage in which the waste water is circulated in a system comprising a descending and an ascending part, which are connected at their upper and lower ends, wherein an oxygen-containing gas such as oxygen itself or an oxygen-containing gas mixture is supplied to the waste water as it passes through the descending part.
  • an oxygen-containing gas such as oxygen itself or an oxygen-containing gas mixture
  • DE 100 57 378 B4 discloses an electric underwater pump as a clear water pump, which is to pump the clear water from the clear water area in the flow of the sewage treatment plant.
  • the water column in the siphon pipe was raised by a brief burst of compressed air, and the inflowing water necessary for this was low, since the increase in volume in the riser pipe largely stems from the inflowing air bubbles.
  • the falling water column first has to separate from the rising air bubbles and therefore does not have the speed required to take the activated sludge into the U-shaped pipe part in such a way that it ascends up to the Intake port passes to get there into the reactor water.
  • the process was repeated with a buffer tank attached above the outlet of the siphon tube. When you press the clear water, so this is first filled with water before the clear water can drain laterally from this. To generate a rinse, the clear water lifter is briefly turned on until the buffer tank is filled and not overflowing.
  • the water from the buffer tank flows back into the jack and pushes the buffered water back through the suction port into the reactor.
  • the activated sludge fraction flushed out in this way is small and corresponds only to the amount of clarified-water-sludge mixture of the volume of the buffer container.
  • the buffer tank can and must not be too large, because its water back pressure greatly reduces the head and the capacity of the clear water lifter.
  • the flow rate of the recirculating water is not sufficient to entrain the activated sludge deposits at the bottom of the U-shaped pipe bend.
  • the invention is therefore an object of the invention to provide a clear water for biological treatment plants and processes for its operation, which allow the pumping of clear water in the reactor of the treatment plant directly below the water surface at the end of the settling phase, so that not bacterial concentrations are transported to the clear water, which exceed the specified limits.
  • the essence of the invention is that the clear water lifter is designed so that this in a combination of hydraulic and pneumatic backwashing in the way that the activated sludge flushed into the reactor and only a small buffer tank is required at the outlet of the siphon tube.
  • the clear water compressed air lifter with backwash function includes an intake manifold with a suction port in the wall and a siphon tube, wherein the intake manifold and the siphon tube have a common connection space, and a compressed air line with an air inlet opening, wherein the air inlet opening into the siphon tube, and a curved discharge pipe with water buffer, which is connected to the siphon tube, so that a Wasserleitweg is formed by the suction port through the intake pipe in the siphon tube to the drain pipe.
  • a centrally divided by a partition wall duct, which is closed at one end to a bottom and merges at its other, open end in the drain pipe, according to the invention forms the intake manifold and the siphon, each having a semicircular cross section, wherein the cross-sectional area of the drain pipe is almost twice as large as the cross-sectional area of the siphon tube.
  • the partition forms according to the invention at the same time by their 360 ° -shaped vertex between the intake manifold and the siphon pipe a connecting arc, with their distance from the bottom of the cladding tube is approximately half the diameter of the cladding tube.
  • the air inlet opening is located on or in the middle wall and is positioned on the side of the siphon pipe in the immediate vicinity of the apex of the partition, wherein the intake pipe above the suction port with a partition, for example. From foam, is closed and through this foreclosure no air can get.
  • the lateral opening of the drain pipe is reduced by approximately half of its pipe diameter, so that a small water buffer is formed.
  • the clear water lifter according to the invention is briefly turned on until the buffer tank is precipitated with water and its drain pipe does not overflow. Thereafter, the clear water jack is switched off immediately.
  • the buffered water flows back into the siphon through the U-shaped pipe bend in the direction of the suction opening.
  • the compressed air is turned on again, so that the water flow diverts the emerging compressed air at the air inlet opening in the opposite direction through the U-shaped pipe bend in the rising intake pipe, whereby the air bubbles rising in the intake pipe, the activated sludge-water mixture through the suction in let the reactor flow, wherein at the same time in the siphon pipe, a negative pressure is formed, which promotes the water there located to a minimum.
  • the tube of the clear water is almost completely purified by activated sludge bacteria and the actual clear water pumping time can be initiated without the loss of activated sludge bacteria.
  • the inventive air pressure lifter is constructed as follows:
  • the intake and the siphon tube are not separate tubes with a bottom mounted U-shaped pipe connection, but these are erfmdungsloom formed from a centrally divided by a partition wall tube by the suction and the siphon tube seen in cross section at the lower end hydraulically connectable tube halves represent.
  • the cross section of the intake pipe and the siphon tube is, for example, semicircular.
  • the cladding tube in its cross-section, has a different geometric shape than the circular shape and the suction and siphon tubes have a different geometric shape than the semicircular shape, in which the cladding tube has an angular, eg. or triangular.
  • the formation of the semi-circular in cross-section suction and semi-circular in cross-section siphon tube is, for example. Realized by pushed into a bottom by a bottom closed, circular in cross-section plastic tube with a slight excess over the inner diameter Rohrdur made middle wall so far into a plastic tube is until between the end of the middle wall and the tube sheet, a distance arises, which corresponds to half the pipe diameter.
  • a compressed air line is attached, which has its air inlet opening at the lower end of the middle wall on a wall side.
  • two seen in cross section semicircular, at the lower end hydraulically connected tube halves are formed.
  • the semicircular siphon tube is formed and on the opposite side, the semicircular suction pipe is formed at the desired height due to a suction opening in the cladding tube.
  • the semicircular tube is advantageously sealed off with a semicircular foam pad, so that the air bubbles which rise there for a short time during the backwashing effect can leave the semicircular tube with the activated sludge-water mixture.
  • Fig. 1 a schematic representation of a compressed air driven
  • Fig. 2 a schematic detail of an embodiment of the clear water compressed air lifter according to the invention with backwash function.
  • FIG. 1 shows a schematic representation of a compressed air-operated SBR system according to the prior art, in which electromagnetic air valves (1) switch the compressed air generated by the compressor (2). These compressed air valves (1) are electrically controlled by the controller (3). A valve (1) switches the air to the feed elevator (4), which is placed in the pre-treatment water (5). Another valve (1) switches the air to the divider fan (6). A third valve (1) switches the common air, the clear water jack (8) placed in the reactor (7) and the excess sludge lifter (9).
  • All three air lift (4, 8 and 9) promote the water through a Ansaugöffiiung (10) in the intake pipe (11) via a U-shaped 360 ° bend (12) in the siphon pipe (13) and a pipe angle (14) in another basin, or in the sewage treatment plant drain.
  • a disadvantage of this technical solution is that when the clear water jack (8) has pumped the clear water from the reactor (7) to the minimum water level (15) and then the feed lifter (4) contaminated with particles and suspended matter pre-treatment water from the primary treatment (5 ) is pumped into the reactor (7) until the Upper maximum water level (16) is reached, even this heavily polluted primary water naturally flows into the intake (0) of the clear water jack (8) and thereby increase the volume in the reactor (7) rising from the Operaerbelspecter (6) in the subsequent aeration phase , So that the fluidized activated sludge bacteria located in the reactor water pass through this volume compensation in the intake opening (10) of the clear water jack (8) to sediment there in the intake pipe (1 1) and in the U-shaped 360 ° arc (12).
  • Compressed air is briefly injected via the valve (1) and through the hose line (17) into the siphon tube (13) of the clear water jack (8) into the air inlet opening (18), so that the surface of the water column until shortly before the outlet of the pipe bend (14) is raised.
  • the water column drops down and generates at the air inlet opening (18) an opposite water flow, so that when switching on the compressed air at this moment, the largest water flow, the introduced air bubbles are entrained so that this deflected in the Inlet pipe (1 1), there can rise up to flow through the suction port (10) in the reactor (7) in the surrounding reactor water.
  • the clear water compressed air lifter with backwash function illustrated in FIG. 2 comprises a tube which is divided in the middle by a dividing wall (23) and which is referred to as a jacket tube (19) and closed at one end and at its other, open end into a curved drainage tube (23). 14), which is, for example, angled 90 degrees, wherein the cross-sectional area of the discharge pipe (14) is almost twice as large as the cross-sectional area of the siphon pipe (13).
  • This ratio of the cross-sectional areas causes the highly pumped clear water / air mixture to be easily separated at the said transition in such a way that the air of the compressed air bubbles can escape via the upper region of the drainage pipe (14) and in the lower region of the drainage pipe (14). the clear water drains off, so that a dynamic pressure against the clear water in the siphon pipe (13) is avoided.
  • the partition (23) is designed thin-walled.
  • the cladding tube (19) has at its one end (the lower end) on a bottom which closes the cladding tube (19) tightly.
  • the partition wall (23) has a distance to the bottom of the jacket tube (19), which corresponds to approximately half the diameter of the jacket tube (19), so that a hydraulic connecting bend (12) with a 360 ° -type vertex between the semicircular suction tube (19). 1 1), which has a suction opening (10).
  • the inflow of compressed air into the air inlet opening (18) can, for example, by a compressed air hose (17), which opens into the air inlet opening (18) and guided on the side of the semicircular suction pipe (11) on the middle wall (23) upwards and attached is.
  • the semicircular intake pipe (11) is provided with a semicircular closure in the form of a foam partition (22), which closes the intake pipe (11) between the middle wall (23) and this section of the jacket pipe (19) so that the There during the backwash effect briefly ascending bubbles with the activated sludge-water mixture can leave the intake pipe (1 1).
  • the drain pipe (14) is placed on the top of the cladding tube (19) positively, wherein the lateral outlet of the drain pipe (14) is approximately reduced by half the pipe diameter of the siphon pipe (13) and is located at the pipe top edge, so that for the Backwashing process results in necessary water buffer (24).
  • the cladding tube (19) is cleaned of deposits from the previously performed filling and the ventilation processes. If the described backwashing process is a feed lifter (4) which pumps heavily polluted water from the primary treatment (5) into the reactor (7), the compressed air bubbles which briefly flow out of the suction opening (10) during the backwashing process become possible mechanical blockages at the intake opening (10).

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

Abstract

La présente invention concerne un élévateur à air comprimé d'eau épurée pour des installations d'épuration biologiques avec une fonction de rinçage en retour pour éviter ou diminuer l'évacuation de particules de boues activées ainsi qu'un procédé pour son fonctionnement. Le problème de l'invention réside dans un élévateur d'eau épurée pour des installations d'épuration biologiques et des procédés pour son fonctionnement, qui permettent le pompage de l'eau épurée dans le réacteur de l'installation d'épuration directement sous la surface de l'eau à la fin de la phase de sédimentation afin que de ne pas favoriser des concentrations en bactéries dans l'eau épurée qui soient supérieures aux valeurs limites prédéfinies. L'élévateur à air comprimé d'eau épurée selon l'invention doté d'une fonction de rinçage en retour comprend un tube d'aspiration (11) muni d'une ouverture d'aspiration (10) dans sa paroi et un tube élévateur (13), le tube d'aspiration (11) et le tube élévateur (13) présentant un espace de liaison commun, une conduite à air comprimé (17) munie d'une ouverture d'entrée d'air (18), l'ouverture d'entrée d'air (18) débouchant dans le tube élévateur (13) et un tube d'évacuation (14) courbé contenant un tampon d'eau (24) qui est relié au tube élévateur (13).
PCT/DE2011/001884 2010-10-28 2011-10-18 Elévateur à air comprimé d'eau épurée pour installations d'épuration biologiques, procédé pour son fonctionnement et son utilisation WO2012062269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010049709 DE102010049709B3 (de) 2010-10-28 2010-10-28 Klarwasser-Druckluftheber für biologische Kläranlagen, Verfahren zu dessen Betrieb und dessen Verwendung
DE102010049709.6 2010-10-28

Publications (1)

Publication Number Publication Date
WO2012062269A1 true WO2012062269A1 (fr) 2012-05-18

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DE (1) DE102010049709B3 (fr)
WO (1) WO2012062269A1 (fr)

Cited By (3)

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CN102849848A (zh) * 2012-09-26 2013-01-02 北京市环境保护科学研究院 内循环生物滤池反应器及污水处理方法
CN106111633A (zh) * 2016-06-08 2016-11-16 西可林控制系统(上海)有限公司 一种全自动金属管型材表面处理方法和设备结构
CN112137546A (zh) * 2019-06-27 2020-12-29 青岛海尔洗碗机有限公司 一种洗碗机

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Publication number Priority date Publication date Assignee Title
DE102011122695B4 (de) 2011-12-23 2013-09-05 Birgit Prädel Klarwasser- Druckluftheber für biologische Kläranlagen und Verfahren zu dessen Betrieb
DE202014003914U1 (de) 2014-05-06 2014-06-17 Birgit Prädel Druckluftheber für biologische Kläranlagen
DE102014006679B4 (de) 2014-05-06 2016-02-25 Birgit Prädel Druckluftheber für biologische Kläranlagen, Verfahren zu dessen Betrieb und dessen Verwendung
DE102017001738B4 (de) 2017-02-22 2019-02-21 Klaro Gmbh Wasserhebevorrichtung mit einer Abscheidevorrichtung
DE102017205572A1 (de) 2017-03-31 2018-10-04 Mahle International Gmbh Ventiltrieb für eine Brennkraftmaschine
CN108283826B (zh) * 2018-01-30 2019-12-10 山东佳星环保科技有限公司 塔式污水处理装置

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DE2420076A1 (de) 1974-04-25 1975-11-13 Bayer Ag Vorrichtung zum kontinuierlichen eintrag von sauerstoff in ein kontinuierlich betriebenes einstufiges belebtschlammbecken
DE10057378A1 (de) * 2000-11-18 2002-05-29 Markus Baumann Verfahren zum Betreiben einer Kläranlage sowie Klarwasser-Entnahmepumpe zur Durchführung d. Verfahrens
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EP1582263B1 (fr) 2004-04-02 2008-12-17 HUBER DeWaTec GmbH Dispositif de levage à air sous pression pour matières fluides
DE102007049517A1 (de) 2007-10-15 2009-04-16 Reinhard Boller Verfahren und Vorrichtung zum kontrollierten Rückhalt von partikulären Stoffen und Schlammbestandteilen zum Schutz von Versickerungsanlagen und Gewässern
DE102007058177A1 (de) 2007-12-02 2009-06-04 Reinhard Boller Verfahren und Vorrichtung zur Optimierung einer Kleinkläranlagen oder kleinen Kläranlage durch Vermeidung oder Verminderung des Austrages von Schlammpartikeln
DE102008020938A1 (de) 2008-04-26 2009-10-29 Reinhard Boller Verfahren und Vorrichtung zur Optimierung einer Kleinkläranlagen oder kleinen Kläranlage durch Vermeidung oder Verminderung des Austrages von Schlammpartikeln
DE202009014465U1 (de) * 2009-10-25 2010-01-28 PRÄDEL, Birgit Vorrichtung in Form eines Drucklufthebers
DE102008038116A1 (de) 2008-08-16 2010-02-18 Reinhard Boller Filtervorrichtung zum Rückhalt von partikulären Stoffen und Schlammbestand-teilen in Kleinkläranlagen, vorzugsweise SBR-Anlagen, kleinen Kläranlagen und sonstigen Anlagen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2423085A1 (de) 1973-05-16 1974-12-12 Ici Ltd Verfahren und vorrichtung zur behandlung von fluessigkeiten, insbesondere von abwasser mit biologisch abbaubaren verunreinigungen
DE2420076A1 (de) 1974-04-25 1975-11-13 Bayer Ag Vorrichtung zum kontinuierlichen eintrag von sauerstoff in ein kontinuierlich betriebenes einstufiges belebtschlammbecken
DE10057378A1 (de) * 2000-11-18 2002-05-29 Markus Baumann Verfahren zum Betreiben einer Kläranlage sowie Klarwasser-Entnahmepumpe zur Durchführung d. Verfahrens
DE10057378B4 (de) 2000-11-18 2004-03-11 Markus Baumann Verfahren zum Betreiben einer Kläranlage sowie steuerbare Klarwasser-Entnahmepumpe zur Durchführung d. Verfahrens
DE602004000905T2 (de) * 2004-02-06 2006-09-14 Uponor Innovation Ab Verfahren zum Heben von Abwasser und Abwasserpumpe
EP1582263B1 (fr) 2004-04-02 2008-12-17 HUBER DeWaTec GmbH Dispositif de levage à air sous pression pour matières fluides
DE202005003588U1 (de) 2005-03-05 2005-05-25 Kordes Kld Wasser- Und Abwassersysteme Gmbh Kleinkläranlage
DE202005019918U1 (de) 2005-12-19 2006-11-23 Steffens, Hinrich Kleinkläranlage mit Ablaufheber
DE102007049517A1 (de) 2007-10-15 2009-04-16 Reinhard Boller Verfahren und Vorrichtung zum kontrollierten Rückhalt von partikulären Stoffen und Schlammbestandteilen zum Schutz von Versickerungsanlagen und Gewässern
DE102007058177A1 (de) 2007-12-02 2009-06-04 Reinhard Boller Verfahren und Vorrichtung zur Optimierung einer Kleinkläranlagen oder kleinen Kläranlage durch Vermeidung oder Verminderung des Austrages von Schlammpartikeln
DE102008020938A1 (de) 2008-04-26 2009-10-29 Reinhard Boller Verfahren und Vorrichtung zur Optimierung einer Kleinkläranlagen oder kleinen Kläranlage durch Vermeidung oder Verminderung des Austrages von Schlammpartikeln
DE102008038116A1 (de) 2008-08-16 2010-02-18 Reinhard Boller Filtervorrichtung zum Rückhalt von partikulären Stoffen und Schlammbestand-teilen in Kleinkläranlagen, vorzugsweise SBR-Anlagen, kleinen Kläranlagen und sonstigen Anlagen
DE202009014465U1 (de) * 2009-10-25 2010-01-28 PRÄDEL, Birgit Vorrichtung in Form eines Drucklufthebers

Cited By (4)

* Cited by examiner, † Cited by third party
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CN102849848A (zh) * 2012-09-26 2013-01-02 北京市环境保护科学研究院 内循环生物滤池反应器及污水处理方法
CN102849848B (zh) * 2012-09-26 2014-03-05 北京市环境保护科学研究院 内循环生物滤池反应器及污水处理方法
CN106111633A (zh) * 2016-06-08 2016-11-16 西可林控制系统(上海)有限公司 一种全自动金属管型材表面处理方法和设备结构
CN112137546A (zh) * 2019-06-27 2020-12-29 青岛海尔洗碗机有限公司 一种洗碗机

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