EP2125174B1 - Procédé et dispositif de traitement d'un liquide - Google Patents

Procédé et dispositif de traitement d'un liquide Download PDF

Info

Publication number
EP2125174B1
EP2125174B1 EP07857148A EP07857148A EP2125174B1 EP 2125174 B1 EP2125174 B1 EP 2125174B1 EP 07857148 A EP07857148 A EP 07857148A EP 07857148 A EP07857148 A EP 07857148A EP 2125174 B1 EP2125174 B1 EP 2125174B1
Authority
EP
European Patent Office
Prior art keywords
liquid
gas
cavitation element
space
acoustic power
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.)
Active
Application number
EP07857148A
Other languages
German (de)
English (en)
Other versions
EP2125174A1 (fr
Inventor
Günter Pöschl
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.)
Ultrasonic Systems GmbH
Original Assignee
Ultrasonic Systems 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 Ultrasonic Systems GmbH filed Critical Ultrasonic Systems GmbH
Priority to SI200730576T priority Critical patent/SI2125174T1/sl
Priority to PL07857148T priority patent/PL2125174T3/pl
Publication of EP2125174A1 publication Critical patent/EP2125174A1/fr
Application granted granted Critical
Publication of EP2125174B1 publication Critical patent/EP2125174B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—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
    • B01F23/23311—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 hollow stirrer axis
    • 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
    • B01F33/05—Mixers using radiation, e.g. magnetic fields or microwaves to mix the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • 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
    • 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
    • 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
    • B01F23/23366—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 in front of the stirrer
    • 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
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237612—Oxygen
    • 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
    • B01F23/238—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using vibrations, electrical or magnetic energy, radiations
    • 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
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1151—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with holes on the surface
    • 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
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/85—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with a vibrating element inside the receptacle
    • 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
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237613—Ozone

Definitions

  • the invention relates to a method for the treatment of a liquid.
  • the invention relates to a method for introducing gas into a liquid.
  • the loading of a liquid with gas is advantageous for a variety of purposes. For example, it allows chemical reactions between the gas and the liquid or between the gas and substances contained in the liquid.
  • One possible use is in the treatment of water, both drinking water and wastewater, where by introducing correspondingly reactive gases, the germ load can be reduced.
  • a special rotating Kaviationselement is in the SU 1240439 A1 shown, which forms the closest prior art.
  • the impeller used there is provided with channels which are closed at their impeller end by membranes.
  • a pressure source remote from the impeller creates pressure differences in the medium present in the channels, which periodically change the position of the membrane with respect to the impeller surface and thus promote the occurrence of cavitation.
  • the object of the invention is to provide an effective method for introducing gases into a liquid.
  • the introduction of gas into the liquid takes place in two stages, so to speak.
  • Kavitationselement first mixing of the gas is achieved with the liquid in which the average bubble size is still relatively high. Since the gas is introduced, in particular, directly to the surface of the cavitation element by means of a gas supply line, it is ensured that the gas passes virtually completely into the liquid through the cavitation process.
  • the sound waves that are introduced into the liquid by the acoustic power converter cause, as a "second stage", a reduction of the gas bubbles, so that the mean bubble size in the entire liquid is significantly reduced.
  • the movement of the cavitation element and the sonication of the space and thus also the processes of the gas input and the crushing of the bubbles occur simultaneously. In this way, a sonochemical solution of the gas is achieved in the liquid, wherein a high and especially predominant proportion of the gas is present in molecularly dispersively dissolved form.
  • the gas can be present as a pure substance or mixture of substances.
  • the inventive method it is possible to introduce a significantly higher proportion of gas in the liquid than with conventional known methods.
  • the space upon introduction of the liquid, the space is completely filled with liquid so that the sound waves can propagate throughout the space and be reflected back into the liquid from all directions.
  • the introduced amount of gas is advantageously chosen so and the introduction of the gas is advantageously carried out so that no gas volume is formed over the liquid.
  • the acoustic power converter is preferably a piezoelectric element, which may be designed, for example, disk-shaped.
  • each of the acoustic power converters has direct contact with the fluid so that the sound waves are emitted directly into the fluid.
  • Direct contact in this context means that no conductive solids from the power converter provide the vibrations in the liquid, e.g. makes a sonotrode. Rather, the liquid is directly on the power converter, so the ultrasound source itself.
  • the acoustic power converter outputs sound waves of different frequencies. If several power converters are provided, these each generate sound waves in the same or in different frequency ranges. It has been found to be advantageous for such a "frequency mixture" to act on the liquid to dissolve much gas.
  • the frequency of the sound waves in the ultrasonic range in particular between 400 and 1500 kHz. Particularly preferred frequencies between 600 and 1200 kHz are used.
  • the acoustic power converter is operated pulsed. This pulse duration is chosen so that the most effective possible crushing of the gas bubbles and dissolving the gas takes place in the liquid. If several acoustic power converters are provided, all or only some of them can be operated in pulse mode, with the same or different pulse durations and pulse frequencies.
  • the movement of the mechanical cavitation element is advantageously a rotational movement, since in this way a good cavitation effect can be achieved in a simple manner.
  • a flow body is preferably used which is shaped so that it generates zones along its surface with the highest possible flow velocity in order to achieve the highest possible cavitation effect and thus a good mixing of the gas with the liquid.
  • the mechanical cavitation element is for example disc-shaped or disk-shaped.
  • a disk can be used which is provided with special structures, such as ellipsoidal pockets, in the region of which very high flow velocities are formed.
  • the supply of gas preferably takes place in the region of the highest flow velocity on the surface of the cavitation element, since it has been shown that a particularly good mixing can thus be achieved. This can be done in the region of the mentioned structures or in the region of the edge of the disk.
  • the liquid flows through the room.
  • the method is therefore not applied to a stationary volume of liquid but to liquid flowing through the corresponding device in the flow-through principle.
  • the term "space” is to be understood broadly. It essentially describes the coherent volume around the cavitation element up to the volume around the acoustic power converter. These volumes can be in the immediate vicinity of each other or with a certain distance from one another, which of course is determined by the outgassing of the gas introduced into the liquid by the cavitation element.
  • the space may be formed by a single larger chamber in which both the cavitation element and the one or more acoustic power converter (s) are arranged, or even multiple chambers but connected together by pipelines, the cavitation element and the acoustic power converter each arranged in a separate chamber.
  • it is always advantageous if the entire space, which comprises the cavitation element and the one or more acoustic power converters is traversed as uniformly as possible by the sound waves of the acoustic power converter (s).
  • the cavitation element is arranged upstream of the acoustic power converter, so that the relatively large bubbles introduced into the liquid by the cavitation element are subsequently detected by the sound waves of the acoustic power converter (s) and thereby "chopped" and the gas released.
  • At least one acoustic power converter can be arranged upstream of the cavitation element.
  • This acoustic power converter is advantageously provided in addition to the power converter arranged downstream of the cavitation element. It has been shown that degassing by means of acoustic power converters is very effective. In this way, the liquid that reaches the Kavitationselement, largely free of gas and can therefore be recharged to a higher degree with gas.
  • the time interval between the passage of the cavitation element and the passage of the acoustic power converter can be up to 10 seconds without any loss in the effectiveness of the gas loading.
  • the gas can be fed into the system in liquid form, which facilitates feed and storage. If, for example, liquid oxygen is used, there is also an advantageous cooling effect on the cavitation element and the surrounding liquid, which increases the solubility of the gas in the liquid, since the temperature of the liquid can be deliberately lowered.
  • the process according to the invention can be used very well for the treatment of water, in particular of drinking or wastewater.
  • the gas contains at least one gas with oxidative properties, such as ozone.
  • the UV irradiation causes a conversion of oxygen to ozone.
  • the UV treatment can for example take place immediately before the exit of the gas at the cavitation element or else elsewhere in the gas supply system. It can be used to a UV lamp. Irradiation with X-rays or gamma rays is also conceivable.
  • the method according to the invention can be used, for example, for sterilizing the liquid or generally destroying bacteria, viruses, fungal spores, toxins or endocrine substances or for denaturing proteins.
  • it can generally be used for the gassing of liquids, not just water or wastewater, with any suitable gas.
  • the invention also relates to a device, in particular for carrying out one of the described methods, having a space, a mechanical cavitation element arranged in the space, a gas supply device whose outlet opens in close proximity to the surface of the cavitation element and an acoustical power converter arranged in the space, thus arranged is that it emits sound waves directly into the room.
  • the space is filled with the liquid, preferably completely, so that the movement of the mechanical cavitation element causes cavitation in the liquid and the acoustic power converter (s) are in direct contact with the liquid and direct sound waves into the liquid Couple in the liquid.
  • the space preferably has a non-rotationally symmetrical cross section in the region of the cavitation element.
  • the cross section may be polygonal, for example.
  • FIG. 1 shows an apparatus for carrying out a method for the treatment of liquids by loading the liquid with gas.
  • a space 12 for receiving the liquid has an inlet 14 and a drain 16.
  • the space 12 is formed in this example as a single chamber.
  • the method is operated in the flow principle, that is, the liquid flows through the inlet 14 into the space 12 at a uniform flow rate and out of the space 12 out of the drain 16.
  • Inlet 14 and outlet 16 are arranged on opposite sides of the space 12 in the axial direction A offset from one another.
  • the device 10 is oriented so that the inlet 14 is located at the lower end of the space 12.
  • the entire space 12 is completely filled with liquid.
  • a mechanical cavitation element 17 here in the form of a shaped as a flow body, horizontally and rotatably mounted disc-shaped disc with opposite convex sides, which meet at a sharp peripheral edge.
  • the cavitation element 17 is connected via a hollow shaft 18 with a continuously variable motor 20, which determines the rotational speed of the Kavitationselements 17.
  • the cavitation element 17 is completely immersed in the liquid and is moved so fast that cavitation occurs in the liquid.
  • a gas supply line 21 is formed (see FIGS. 1 and 3), which is part of a gas supply device, through which gas is guided to the surface of the cavitation element 17 for introduction into the liquid.
  • the gas supply line 21 is connected to a channel 22 which opens out of the space 12 and which can be connected to a gas supply (not shown).
  • the gas can be supplied in liquid form, it being advantageous, depending on the temperature of the liquid gas, if the gas is already gaseous on entering the channel 22.
  • cooled liquid gas such as liquid oxygen
  • the gas supply device simultaneously contributes to the cooling of the entire device 10 and thus also to the cooling of the liquid in the space 12.
  • the FIGS. 3 and 4 show a possible formation of a Kavitationselements 17.
  • the Kavitationselement 17 has the shape of a formed as a flow body disc, wherein the end face 40 is more convexly curved than the back 42.
  • two ellipsoidal pockets 44 are provided in the end face 40 of the Kavitationselements 17 in the end face 40 of the Kavitationselements 17 in the end face 40 of the Kavitationselements 17 are provided.
  • a plurality of circumferentially slightly offset pockets 46 are formed in the back 42, wherein the depth of Bags 44, 46 is selected so that in the region of the pockets 44 openings between the end face 40 and the back 42 of the Kavitationselements 17 are formed.
  • two of these openings are designated by the reference numeral 48. Due to this configuration, very high flow velocities are formed not only in the region of the peripheral edge of the cavitation element 17 but also in the region of the pockets 44, 46, which results in a very high cavitation
  • the gas supply line 21 opens directly on the surface of the Kavitationselements 17, as in the FIGS. 3 and 4 can be seen.
  • the gas to be supplied flows through the channel 22, which is connected via a transverse bore 25 with the hollow shaft 18.
  • the part of the gas supply device which is arranged between the motor 20 and the cavitation element 17 is arranged here in a housing 23 which surrounds the hollow shaft 18 and connects the cavitation element 17 to the motor 20.
  • the gas supply line 21 terminates in the interior of the Kavitationselements 17 in an outlet which is in the form of several, aligned obliquely to the central axis M mouth channels 50, each extending to the surface of the Kavitationselements 17 and in the concrete example, the surface on the inside of the pockets 46th to reach.
  • the gas brought about by the gas supply device thus exits directly on the surface of the cavitation element 17 and is introduced into the liquid in the region of the highest cavitation effect.
  • the exit angle ⁇ of the mouth channels 50 (measured to the vertical) here is about 50 °, but can of course be adapted to the respective application.
  • the gas supply in the immediate vicinity of the surface of the Kavitationselements can also be done elsewhere, not only through the Kavitationselement.
  • the cross section of the space 12 (see FIG. 1 ) in the region of the cavitation element 17 is chosen differently from the circular shape and is not rotationally symmetrical.
  • it is polygonal, such as triangular, quadrangular or pentagonal. This serves to increase the cavitation effect by preventing the formation of a rotating flow around the cavitation element 17.
  • the space 12 is enclosed by a wall 24 which holds the liquid in the space 12.
  • To room 12 include next to the chamber in which the Kavitationselement 17 is arranged, and the subsequent piping.
  • the space 12 also comprises two short connecting stubs 30, 32 angled at 90 °, to each of which an acoustic power converter 26, 28 is connected and which connect the acoustic power converters 26, 28 to the chamber containing the cavitation element 17.
  • Both acoustic power converters 26, 28 are designed here as ultrasound transmitters and operate in a frequency range from 400 to 1500 kHz, preferably in a frequency range from 600 to 1200 kHz.
  • the nozzle 30 opens at the level of the inlet 14, offset in the circumferential direction of the chamber by 90 ° from this, while the nozzle 32 opens at the level of the drain 16, also offset by 90 ° from this.
  • the two acoustic power converters 26, 28 are axially spaced apart, so that no direct coupling of sound waves of a power converter can be done in the other power converter.
  • the acoustic power converters couple ultrasonic energy as an elementary wave directly into the liquid and also into the cavitation element 17, on both sides of each disk-shaped power converter 26, 28.
  • Each of the acoustic power converters 26, 28 simultaneously radiates a spectrum of different frequencies.
  • At least the acoustic power converter 28, optionally also the acoustic power converter 26 are not operated in continuous operation, but pulsed, with pulse frequency and pulse duration are matched to the particular geometry of the space 12, the gas used and the liquid used.
  • FIGS. 5 to 8 show a possible embodiment of an acoustic power converter, as it can be used for the acoustic power converter 26, 28.
  • a disk-shaped actuator 60 which consists here of a piezoelectric material, is arranged in a housing 62, which is preferably made of electrically non-conductive ceramic or plastic. Both end faces 64 are coated with an electrically conductive contact layer, here a silver layer 66. Both end faces 64 are also covered, except for a circular area near the edge, with a chemically inert protective layer 68, in particular gas, which covers the entire area of the actuator 60 which comes into contact with the liquid.
  • the electrically conductive layer 66 is used for contacting and for exciting the piezoelectric material and is connected in a known manner with a controllable voltage generator.
  • the actuator 60 is inserted in the housing 62 so that the junction between the protective layer 68 and the electrically conductive layer 66 is sealed by elastic seals 70.
  • the liquid may flow into the housing 52 so that it is in direct contact with the actuator 60. This allows the acoustic power converter to couple the sound waves directly into the liquid.
  • the cavitation element 17 is set in such rapid rotation that cavitation takes place in the liquid.
  • Gas is directed to the surface of the cavitation element 17 by the gas supply device. Due to the Kavitations Sign the introduced gas is almost completely introduced into the liquid.
  • the amount of gas introduced may be, for example, 285 g / h for oxygen in well water at a temperature of 15 ° C.
  • the mean bubble size is still relatively large.
  • the two-stage process according to the invention is based on the introduction of the gas through the cavitation element 17 and the subsequent treatment of the gas bubbles already present in the liquid by sound waves emitted by the acoustic power converters 26, 28.
  • the cavitation element 17 and one or both acoustic power converters 26, 28 in different, interconnected only by piping chambers. It has been found that the distance can be chosen so large that between the passage of the Kavitationselements 17 and the acoustic power converter 26, 28 can pass up to 10s, in which the liquid flows from one chamber into the other chamber. It should be noted that the geometry of the room 12 is chosen so that the entire room is constantly is sonicated by the sound waves of the acoustic power converter 26, 28. It is possible to arrange suitable reflectors in the space 12.
  • the geometry of the space 12 and the arrangement of the acoustic power converters 26, 28 is selected so that as few standing waves form in the space 12.
  • the fluidically first acoustic power converter 26 can also be used to degas the liquid before it is again charged with gas.
  • the inflowing liquid is exposed directly to the sound waves of the acoustic power converter 26, resulting in that already dissolved in the liquid gas is expelled from the liquid. Only then does the liquid reach the region of the cavitation element 17, where it is again charged with the specially supplied gas.
  • An application of the device 10 and the process operated therewith is the purification of water, in particular wastewater.
  • the device 10 can be used for example in sewage treatment plants for the treatment of wastewater.
  • the gas supplied is preferably ozone-containing, with pure oxygen or even air as starting gas can be used.
  • irradiation with UV light is provided in the region of the gas supply device.
  • This can be done by a UV lamp, which is arranged for example in the region of the channel 22 or even the hollow shaft 18.
  • the UV lamp can also be irradiated with X-rays or gamma rays.
  • the delivery of high energy radiation results in some of the oxygen being converted to ozone. Since the generation of the ozone is in the immediate vicinity of the exit of the gas, there is no problem that the ozone decomposes again between the generation and the introduction into the liquid. However, it is also possible to produce the ozone with a conventional ozone generator and then to feed the wastewater.
  • the gas may be in liquid form, e.g. in the form of liquid oxygen are fed into the system, wherein it is preferably present in gaseous form when entering the channel 22.
  • the destruction takes place mainly by known means by denaturation, ie a reaction of the ozone with certain chemical groups of the protein molecule.
  • the gas remains in solution for longer than in conventional methods, since a very small bubble size is achieved.
  • Bubbles with a diameter of a few angstroms or a few nanometers no longer behave like larger gas bubbles, which rise directly to the surface, but behave sometimes even heavier than water and sink to the bottom. In addition, they are much more durable in the liquid than larger gas bubbles.
  • the internal pressure in the bubbles is approximately equal to the ambient pressure in the liquid. They also connect much less with each other to larger bubbles, so that the component remains at very small bubbles in the liquid for a very long time.
  • a dispersion with the smallest bubbles in the angstrom to nanometer range can be generated, wherein the chemical solution of the gas in the liquid is significantly increased.

Claims (15)

  1. Procédé de traitement d'un liquide, comportant les étapes suivantes :
    - introduire du liquide à traiter dans un espace (12),
    - faire agir un élément de cavitation (17) mécanique sur le liquide en amenant du gaz dans la zone de la surface de l'élément de cavitation (17) et introduire le gaz dans le liquide en remuant l'élément de cavitation (17), et
    - introduire des ondes acoustiques directement dans le liquide par au moins un convertisseur de puissance acoustique (26, 28).
  2. Procédé selon la revendication 1, caractérisé en ce que lors de l'introduction du liquide, l'espace (12) est entièrement rempli de liquide.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le convertisseur de puissance acoustique (26, 28) est un élément piézoélectrique.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que le convertisseur de puissance acoustique (26, 28) émet des ondes acoustiques de différente fréquence, en particulier des ondes acoustiques entre 400 et 1500 kHz.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le convertisseur de puissance acoustique (26, 28) fonctionne en régime pulsé.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'élément de cavitation (17) mécanique tourne.
  7. Procédé selon la revendication 6, caractérisé en ce que l'élément de cavitation (17) mécanique est réalisé en forme de disque.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'amenée de gaz est effectuée dans la zone de la plus grande vitesse d'écoulement à la surface de l'élément de cavitation (17).
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que le liquide s'écoule à travers l'espace (12) et l'élément de cavitation (17) est agencé de préférence en amont du convertisseur de puissance acoustique (28).
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que le liquide est dégazé avant le traitement avec l'élément de cavitation (17) et les ondes acoustiques.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'au moins un convertisseur de puissance acoustique (26) est agencé en amont de l'élément de cavitation (17).
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'il est mis en oeuvre pour le traitement d'eau, en particulier d'eau potable ou d'eau usée.
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'il est mis en oeuvre pour dégermer le liquide ou pour détruire des bactéries, des virus, des protéines, des spores fongueux, des toxines ou des substances endocrines.
  14. Dispositif, en particulier pour mettre en oeuvre un procédé selon l'une des revendications précédentes,
    comportant un espace (12),
    un élément de cavitation (17) mécanique agencé dans l'espace (12)
    caractérisé par
    un dispositif d'amenée de gaz dont la sortie débouche à proximité directe de la surface de l'élément de cavitation (17), et
    un convertisseur de puissance acoustique (26, 28) agencé dans l'espace (12), lequel est agencé de telle sorte qu'il émet des ondes acoustiques directement dans l'espace (12).
  15. Dispositif selon la revendication 14, caractérisé en ce que dans la zone de l'élément de cavitation (17), l'espace (12) a une section transversale qui n'est pas à symétrie de révolution.
EP07857148A 2006-12-28 2007-12-28 Procédé et dispositif de traitement d'un liquide Active EP2125174B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200730576T SI2125174T1 (sl) 2006-12-28 2007-12-28 Postopek in priprava za obdelavo tekočine
PL07857148T PL2125174T3 (pl) 2006-12-28 2007-12-28 Sposób i urządzenie do obróbki cieczy

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006061906 2006-12-28
DE102007013533A DE102007013533A1 (de) 2006-12-28 2007-03-21 Ultraschall gestütztes Verfahren und Vorrichtung zur Gasbeladung und Entkeimung von durch Keime kontaminierten Flüssigkeiten und Kläranlagen
PCT/EP2007/011456 WO2008080618A1 (fr) 2006-12-28 2007-12-28 Procédé et dispositif de traitement d'un liquide

Publications (2)

Publication Number Publication Date
EP2125174A1 EP2125174A1 (fr) 2009-12-02
EP2125174B1 true EP2125174B1 (fr) 2011-01-26

Family

ID=39247788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07857148A Active EP2125174B1 (fr) 2006-12-28 2007-12-28 Procédé et dispositif de traitement d'un liquide

Country Status (20)

Country Link
US (1) US8329043B2 (fr)
EP (1) EP2125174B1 (fr)
JP (1) JP5219096B2 (fr)
KR (1) KR101430725B1 (fr)
CN (1) CN101626822B (fr)
AT (1) ATE496685T1 (fr)
AU (1) AU2007341626B2 (fr)
BR (1) BRPI0720632A2 (fr)
CA (1) CA2673656C (fr)
DE (2) DE102007013533A1 (fr)
DK (1) DK2125174T3 (fr)
IL (1) IL199499A (fr)
MA (1) MA31101B1 (fr)
MX (1) MX2009006925A (fr)
PL (1) PL2125174T3 (fr)
PT (1) PT2125174E (fr)
SI (1) SI2125174T1 (fr)
TN (1) TN2009000264A1 (fr)
WO (1) WO2008080618A1 (fr)
ZA (1) ZA200904778B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047947A1 (de) * 2010-10-08 2012-04-12 Ultrasonic Systems Gmbh Vorrichtung zur Behandlung einer Flüssigkeit und Verfahren zum Behandeln einer Suspension
CN102452699A (zh) * 2010-10-18 2012-05-16 四平市铁东区庆升热工设备有限公司 流动型超声空化降解高浓度印染污水反应器
US9169136B1 (en) * 2011-06-16 2015-10-27 Water Evolution Technologies, Inc. Water purification and softening system and method for beverage dispenser
DE102011121910A1 (de) * 2011-12-21 2013-06-27 Ultrasonic Systems Gmbh Verfahren zur Behandlung sulfidhaltiger Ablauge
US20140353223A1 (en) * 2011-12-29 2014-12-04 Daikin Industries, Ltd. Purifying device
DE102012018995A1 (de) * 2012-09-27 2014-03-27 Klaus Büttner Verfahren zur Behandlung einer Flüssigkeit
US20140263461A1 (en) * 2013-03-13 2014-09-18 David M. Prokop Motorized aerator pourer
CN104437197B (zh) * 2014-11-21 2017-02-22 中国科学院力学研究所 一种空间两相超声混合搅拌系统
FI127076B (en) 2016-04-14 2017-10-31 Nofa Oy Cavitation arrangement for removing harmful substance from a fluid
US20220098067A1 (en) * 2020-09-25 2022-03-31 Ovivo Inc. Enhanced Membrane Performance Using Ozone
CN117304387B (zh) * 2023-09-25 2024-04-23 上海拓径新材料科技股份有限公司 一种可聚合的近红外染料、制备方法、聚合设备

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH283308A (de) 1948-03-12 1952-05-31 Mueller Hans Vorrichtung zum Mischen einer Flüssigkeit oder zum Emulgieren.
CH593870A5 (fr) * 1974-01-07 1977-12-15 Tii Corp
US4003832A (en) * 1974-01-07 1977-01-18 Tii Corporation Method of applying ozone and sonic energy to sterilize and oxidize waste water
US4298467A (en) * 1977-06-06 1981-11-03 Panlmatic Company Water treatment system
NL7803906A (nl) 1978-04-12 1979-10-16 Noordvos Schroeven Bv Werkwijze, inrichting en propeller voor het verdelen van een gasvormig, poedervormig of vloeibaar materiaal in een vloeistof.
JPS5934130B2 (ja) 1980-07-02 1984-08-20 セントラル硝子株式会社 四弗化珪素の製造法
JPS57171414A (en) * 1981-04-14 1982-10-22 Matsushita Electric Ind Co Ltd Gas scrubbing apparatus
SU1240439A1 (ru) 1984-12-10 1986-06-30 Fedotkin Igor M Кавитационный смеситель
US4952417A (en) 1987-02-09 1990-08-28 Ramon Escola Gallart Apparatus for incorporating gas into a sugar mass
JPH04161296A (ja) 1990-10-25 1992-06-04 Sanbio:Kk 気泡発生装置
DE4113578A1 (de) 1991-04-25 1992-10-29 Poeschl Guenter Einrichtung zur beladung von viskosen fluessigkeiten mit gasen
FR2679790A1 (fr) 1991-08-02 1993-02-05 Billmann Andre Reacteur physico-chimique a cavitation ultrasonore.
JP3104143B2 (ja) 1992-02-14 2000-10-30 耕司 戸田 超音波攪拌装置
GB9408816D0 (en) * 1994-05-04 1994-06-22 Boc Group Plc Gas dissolution in liquids
JP3532626B2 (ja) 1994-10-07 2004-05-31 アロカ株式会社 攪拌ノズル装置
JP4066468B2 (ja) 1997-02-17 2008-03-26 株式会社Ｉｈｉ 空気オゾン混合器及びオゾンフォグ発生装置
US5925290A (en) * 1997-08-08 1999-07-20 Rhone-Poulenc Inc. Gas-liquid venturi mixer
US6491829B2 (en) 1999-12-24 2002-12-10 Takashi Nishimoto Method and unit for processing contaminated liquid
JP3762206B2 (ja) * 2000-09-13 2006-04-05 株式会社アスプ 超微細気泡発生装置
JP2004000897A (ja) 2002-04-01 2004-01-08 Atsushi Ichiki 微細気泡発生装置
AU2003277016A1 (en) * 2002-09-26 2004-05-04 Atomix, Llc Roto-dynamic fluidic system
DE10258898A1 (de) * 2002-12-17 2004-07-01 Institut für Energetik und Umwelt gGmbH Inaktivierung von Mikroorganismen
US7048863B2 (en) * 2003-07-08 2006-05-23 Ashland Licensing And Intellectual Property Llc Device and process for treating cutting fluids using ultrasound
DE502004007399D1 (de) 2003-08-08 2008-07-31 Klaus Buettner Verfahren zur desinfektion von flüssigkeiten
DE102004002545A1 (de) * 2004-01-17 2005-08-18 Water System Cleaning Ag Einrichtung zur Behandlung des Wassers in offenen oder geschlossenen Wassersystemen
DE202004020459U1 (de) * 2004-06-28 2005-07-14 Büttner, Klaus, Dipl.-Ing. Vorrichtung zur Behandlung von Flüssigkeiten
JP4970774B2 (ja) * 2004-11-24 2012-07-11 昭和電工株式会社 気泡の放出分散装置ならびに溶湯処理方法および溶湯処理装置
JP2006289183A (ja) * 2005-04-06 2006-10-26 Nano Bubble Kk ナノバブル生成方法とその装置

Also Published As

Publication number Publication date
DE102007013533A1 (de) 2008-07-03
PT2125174E (pt) 2011-05-02
TN2009000264A1 (en) 2010-10-18
JP2010514552A (ja) 2010-05-06
US20100314331A1 (en) 2010-12-16
DK2125174T3 (da) 2011-05-16
US8329043B2 (en) 2012-12-11
CA2673656A1 (fr) 2008-07-10
KR20090106403A (ko) 2009-10-08
MX2009006925A (es) 2009-10-12
CN101626822B (zh) 2013-01-16
EP2125174A1 (fr) 2009-12-02
PL2125174T3 (pl) 2011-06-30
KR101430725B1 (ko) 2014-08-14
AU2007341626A1 (en) 2008-07-10
DE502007006399D1 (de) 2011-03-10
ZA200904778B (en) 2010-04-28
ATE496685T1 (de) 2011-02-15
AU2007341626B2 (en) 2012-01-19
IL199499A (en) 2013-01-31
WO2008080618A1 (fr) 2008-07-10
BRPI0720632A2 (pt) 2014-03-25
CN101626822A (zh) 2010-01-13
CA2673656C (fr) 2016-03-01
SI2125174T1 (sl) 2011-06-30
MA31101B1 (fr) 2010-01-04
JP5219096B2 (ja) 2013-06-26

Similar Documents

Publication Publication Date Title
EP2125174B1 (fr) Procédé et dispositif de traitement d'un liquide
EP1737795B1 (fr) Dispositif pour traiter une substance liquide ou gazeuse au moyen de rayons uv
DE60033620T2 (de) Vorrichtung und verfahren zur erzeugung von gasmikrobläschen in einer flüssigkeit
EP1530503B1 (fr) Modules d'enrichissement en gaz
EP1222540A1 (fr) Methode et systeme relatifs a des donnees operationnelles coherentes de grappe dans une grappe de serveurs utilisant un quorum de repliques
DE19705364A1 (de) Verfahren und Vorrichtung zur Sprühverteilung mittels Ultraschall
DE102006057994B4 (de) Vorrichtung zur Reinigung, insbesondere Entkeimung, von Flüssigkeiten
DE4110687A1 (de) Verfahren und vorrichtung zur behandlung schadstoffbelasteter fluessigkeiten
DE102014015642A1 (de) Verfahren und Vorrichtung zur Entkeimung von Flüssigkeiten durch Direkteinwirkung von Biowirksamen UVC-LED-Licht
EP1862185B1 (fr) Dispositif destiné à la traitement de liquides par lumière UV et ultrason
DE69834578T2 (de) Verfahren zur behandlung von zementaufschlämmungen
DE2307877B2 (de) Vorrichtung zum Sterilisieren von Flüssigkeiten
EP1651569B1 (fr) Procede de desinfection de liquides
DE2219651C3 (de) Verfahren zum Reinigen von Abwasser
DE4136949A1 (de) Verfahren und vorrichtung zur photooxidativen reinigung von organisch belastetem wasser
WO2000058224A1 (fr) Reacteur permettant de nettoyer et de desinfecter un milieu aquatique
AT407521B (de) Aufbereitung von mit gentoxischen substanzen belastetem wasser
EP2624943B1 (fr) Dispositif de traitement d'un liquide et procédé de traitement d'une suspension
DE112018001465T5 (de) Reinigungs- und Sterilisationsvorrichtung
DE102020120964A1 (de) Vorrichtung zur Behandlung eines flüssigen oder gasförmigen Mediums mittels Strahlen
WO2008052233A1 (fr) Procédé de traitement d'eaux usées
DE102006026569A1 (de) Verfahren zur Aufbereitung und Entkeimung von Flüssigkeiten
DE4440880A1 (de) Dünnschichtbestrahlungszentrifuge
EP3789349A1 (fr) Dispositif et procédé de traitement des liquides ou des suspensions au moyen des ultrasons et plasma
DE102015108685B4 (de) UV-Licht-Bestrahlungsvorrichtung zur Bestrahlung eines flüssigen Mediums mit ultraviolettem Licht im Durchfluss und Anlage zur Behandlung eines flüssigen Mediums mit ultraviolettem Licht mit einer derartigen Bestrahlungsvorrichtung im Durchfluss und deren Verwendung sowie Verfahren zum Betreiben derselben

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090728

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20091124

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007006399

Country of ref document: DE

Date of ref document: 20110310

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007006399

Country of ref document: DE

Effective date: 20110310

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUGNION S.A.

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20110421

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2360378

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20110603

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20110400939

Country of ref document: GR

Effective date: 20110513

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 9098

Country of ref document: SK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110126

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E011020

Country of ref document: HU

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20111027

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007006399

Country of ref document: DE

Effective date: 20111027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502007006399

Country of ref document: DE

Representative=s name: STUETZ, JAN H., DIPL.-ING., DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20161216

Year of fee payment: 10

Ref country code: SK

Payment date: 20161220

Year of fee payment: 10

Ref country code: LT

Payment date: 20161216

Year of fee payment: 10

Ref country code: CZ

Payment date: 20161220

Year of fee payment: 10

Ref country code: EE

Payment date: 20161221

Year of fee payment: 10

Ref country code: IE

Payment date: 20161223

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20161219

Year of fee payment: 10

Ref country code: BG

Payment date: 20161223

Year of fee payment: 10

Ref country code: GR

Payment date: 20161221

Year of fee payment: 10

Ref country code: BE

Payment date: 20161221

Year of fee payment: 10

Ref country code: PL

Payment date: 20161221

Year of fee payment: 10

Ref country code: LV

Payment date: 20161222

Year of fee payment: 10

Ref country code: RO

Payment date: 20161219

Year of fee payment: 10

Ref country code: SI

Payment date: 20161216

Year of fee payment: 10

Ref country code: AT

Payment date: 20161219

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: EE

Ref legal event code: MM4A

Ref document number: E005251

Country of ref document: EE

Effective date: 20171231

REG Reference to a national code

Ref country code: LT

Ref legal event code: MM4D

Effective date: 20171228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180628

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 496685

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

Ref country code: LV

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

REG Reference to a national code

Ref country code: SK

Ref legal event code: MM4A

Ref document number: E 9098

Country of ref document: SK

Effective date: 20171228

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: SI

Ref legal event code: KO00

Effective date: 20180807

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

Ref country code: HU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171229

Ref country code: EE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171231

Ref country code: LT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171229

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171231

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180705

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20210121

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502007006399

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0003040000

Ipc: B01F0023200000

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20211222

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20230622

Year of fee payment: 16

Ref country code: FR

Payment date: 20230622

Year of fee payment: 16

Ref country code: DK

Payment date: 20230621

Year of fee payment: 16

Ref country code: DE

Payment date: 20230620

Year of fee payment: 16

Ref country code: CH

Payment date: 20230626

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20221228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230622

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230628

Year of fee payment: 16

Ref country code: ES

Payment date: 20230630

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230622

Year of fee payment: 16