EP3507248A1 - Dispositif de traitement de liquide, son utilisation et procédé de traitement d'un liquide - Google Patents

Dispositif de traitement de liquide, son utilisation et procédé de traitement d'un liquide

Info

Publication number
EP3507248A1
EP3507248A1 EP17757548.7A EP17757548A EP3507248A1 EP 3507248 A1 EP3507248 A1 EP 3507248A1 EP 17757548 A EP17757548 A EP 17757548A EP 3507248 A1 EP3507248 A1 EP 3507248A1
Authority
EP
European Patent Office
Prior art keywords
liquid
electrode
container
electric field
electrodes
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.)
Withdrawn
Application number
EP17757548.7A
Other languages
German (de)
English (en)
Inventor
Karin Schneider
Anton Dukart
Olaf Ohlhafer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3507248A1 publication Critical patent/EP3507248A1/fr
Withdrawn legal-status Critical Current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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/487—Treatment of water, waste water, or sewage with magnetic or electric fields using high frequency electromagnetic fields, e.g. pulsed electromagnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46171—Cylindrical or tubular shaped
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/46175—Electrical pulses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead

Definitions

  • Fluid treatment device and method for preparing a liquid
  • the invention relates to a liquid processing apparatus according to claim 1, a use of a liquid processing apparatus according to claim 10, and a method for preparing a liquid according to claim 11.
  • Drinking water is always used when stationary treatment is not available or can not be used for other reasons.
  • Corresponding treatment plants or devices prepare, for example, water from rivers, lakes or near-surface groundwater to drinking water by ridding it of germs or pathogens and also possibly removing toxic or undesirable ingredients. In general, the following procedures are used: filtration, reverse osmosis, chlorination, ozonation, irradiation with UV light.
  • ⁇ ', O', HGV - generated, which cause the degradation of harmful chemical or biological substances and in particular a sterilization.
  • liquid processing device in particular a mobile liquid processing device, serves for processing
  • a liquid stored in a first container and / or of a liquid flowing from a first container into a second container and / or into a working environment, in particular of drinking water It comprises an inlet for the supply of liquid to be treated, an outlet for the discharge of treated liquid, and a treatment line connecting the inlet with the outlet in a fluid-conducting manner.
  • at least one pair of electrodes is in and / or at the treatment line
  • a liquid here means a liquid substance, in particular water, drinking water and other liquid foods. Processing a liquid here means the targeted modification of a liquid quality by removing and / or inactivating certain undesirable ingredients, especially pathogens. Sterilization of a liquid here means the removal and / or inactivation and / or killing of microorganisms such as bacteria.
  • a liquid treatment device means a device which is suitable for preparing and / or sterilizing a liquid.
  • a mobile liquid treatment device is a plant or a device with which decentralized, in places without superordinate and / or monitored infrastructure, a supply of users with treated liquid, in particular with treated or sterilized drinking water can be done. However, mobile may also mean that the liquid processing device can be easily retrofitted and removed again: Thus, the liquid processing device could also be used e.g. in aquariums, ponds,
  • first container here is a reservoir for Storage of liquid to be processed, for example, understood from contaminated raw water.
  • the first container may also contain already treated liquid or a liquid which is in the process of processing.
  • the first container may be a container, a barrel, a cistern, a storage tank, a bottle, a
  • a second container is understood here to mean a storage container or a useful container which serves for the storage of treated liquid, for example of treated or sterilized drinking water.
  • the second container may be, for example, a container, a barrel, a cistern, a storage tank, a bottle, an aquarium.
  • Useful environment is understood here as the place where the liquid is used, for example a kitchen, a bathroom, a laundry room, a
  • An inlet is an inlet and / or a port to which the liquid is subjected to a treatment, in the present case the treatment.
  • an outlet is an outlet and / or a connection, at which the liquid is discharged after a treatment, in the present case after the treatment.
  • Processing line is a liquid-conducting flow path in which the treatment of the liquid takes place, for example, this is designed as a reaction space line piece.
  • An electrode here means a component which is designed to receive and conduct electrical charges.
  • Electrode pair comprises an electrode and a counter electrode, which are in fixed spatial relationship to one another and when loaded with electric charges, for example, the same amount but different sign, form an electric field between them, for example similar to one
  • Capacitor Alternatively, only one electrode may be electrically charged, while the other electrode is connected to a neutral.
  • An electric field is a spatial physical field that is caused by electrical charges and acts on electrical charges. From an electrical
  • Field interspersed means to be permeated with respect to the liquid flowing through the treatment line, to be exposed to the field, the field acts on the liquid and / or on ingredients of the liquid and as a result changes the quality of the liquid.
  • Electroporation here means a method of permeabilizing membranes of cells of microorganisms make and rely on exposing the cells to an electric field. This permeabilization can be reversible or irreversible. Irreversible electroporation leads to irreversible permeabilization of the cell membrane and thus to the death of the cells and thus to the inactivation and / or killing of the microorganisms.
  • a liquid treatment device is provided, with the help of which decentralized at locations away from a superordinate infrastructure, a liquid processed, in particular sterilized, can be.
  • This has the advantage that at the places mentioned a safe and hygienic liquid supply, especially drinking water supply is guaranteed.
  • legionella can multiply in drinking water in the temperature range between about 25 ° C and 50 ° C.
  • Legionella are the cause of Legionnaires' disease when they enter the body through the lungs (for example, by inhaling the sprayed water)
  • Escherichia coli can colonize food and liquids and are among the most common causes of human
  • Fluid treatment device kills, inter alia, the above
  • the killing of the bacteria is carried out by irreversible electroporation, advantageously no other the liquid quality (for example, the taste sensation) disturbing components such as ozone or chlorine arise. It must be added to the liquid to be processed and no other ingredients or be present in it such as sodium chloride. It deliberately does not come to one
  • Voltage breakdown here means that an electrical voltage in the form of a spark or an arc compensates and dissipates. It arises when a voltage applied between two electrodes is greater than a given dielectric strength, wherein the dielectric strength of the medium between the electrodes and a duration, in particular one Pulse duration, an acting on the medium between the electrodes electric field depends.
  • the electrode pair comprises two electrodes, wherein a first electrode is substantially, in particular completely circumferentially disposed on a wall of the liquid processing device, and wherein a second electrode is disposed within the treatment line.
  • the preparation section comprises, for example, a flow-through tubular element or a flow-through container and thus forms a flow space with a free flow cross-section representing interior and a flow limiting representing wall, which closes the free flow cross-section similar to a tube wall circumferentially outwardly fluid-tight.
  • the first electrode is flat against the wall of the
  • Liquid treatment device arranged, for example, on the inner side facing the wall.
  • the first electrode is arranged on the side facing away from the interior of the wall.
  • the first electrode itself forms the wall at least in sections. That the first
  • Substantially, in particular completely peripherally arranged on the wall of the liquid treatment device means that the electrode from the interior of the flow space radially to a
  • the first electrode also has a longitudinal extent in the main flow direction.
  • the second electrode is arranged in the interior of the free flow cross section, for example, it is a prismatic or rod-shaped, extending parallel to a longitudinal axis of the main flow direction
  • the second electrode may be cylindrical section-shaped and arranged centrally in the interior of the flow space.
  • the first electrode and the second electrode of the pair of electrodes are advantageously in one and the same Longitudinal section of the treatment line arranged. Such an arrangement may preferably be coaxial. Between the electrodes, a gap-shaped free cross section is formed, through which the liquid to be treated can flow.
  • Liquid processing device is characterized in that the pair of electrodes comprises two electrodes, wherein one electrode has at least two electrode sections electrically connected in parallel, and wherein the other electrode has at least one electrode section or at least two electrode sections electrically connected in parallel.
  • the electrode sections are fully cylindrical and / or hollow cylindrical with a
  • the electrode sections are substantially, in particular completely coaxial with each other and radially spaced from each other, wherein the electrode sections of an electrode form spaces in which the electrode sections of the other electrode at least partially engage.
  • adjacent electrode sections have different polarities from each other.
  • Electrode sections are subareas of an electrode, which together form a one-part or preferably a multi-part geometric structure of the electrode.
  • the electrode sections of the first electrode are connected to one another in an electrically conductive manner.
  • Electrode portions of the second electrode electrically conductively connected to each other.
  • the electrode portions of the first electrode may assume a different polarity than the electrode portions of the second electrode.
  • Polarity means an electrical connection to an electrical one
  • DC pole such as a positive pole, an anode, a negative pole, a cathode, or an electrical connection to an AC voltage, or a connection to ground potential.
  • Counter electrode is a field direction (also called field line direction, direction of a vector field of the electric field strength) of the forming electric field connected: this is defined as from the positive pole to the negative pole oriented.
  • field direction also called field line direction, direction of a vector field of the electric field strength
  • Electrode portions of the first and / or the second electrode also serve as Electrode portions of the first and / or the second electrode.
  • Electrode sections each formed as a solid cylinder or as a hollow cylinder, each having different diameters. The lengths of the
  • Electrode portions may be substantially or completely the same, that is, the lengths may differ from one another by at most 30%, preferably at most 15%, more preferably at most 5%, or be identical.
  • Electrode pairs are advantageously arranged in a same longitudinal section of the treatment line, which means that the transverse to
  • Main flow direction arranged end faces of the electrode portions lie in a common plane or are only slightly axially offset from each other, for example, a maximum of 30%, preferably by a maximum
  • the cylinders are arranged essentially, in particular completely coaxially, means that they have a common cylinder axis or that their respective cylinder axes deviate only slightly radially and / or angularly from one another, for example radially at most by 10%, preferably at most by 5% of the diameter of the flow cross-section of the preparation path are shifted from each other, or tilted, for example, at an angle of at most 10 degrees, preferably at most 5 degrees against each other.
  • the end faces (bases) of the solid cylinder or hollow cylinder may be circular, circular, elliptical, or regularly or irregular polygonal ring. Accordingly, the hollow cylinders are hollow circular cylinders, hollow elliptical cylinder ellipses
  • Gaps or gaps are present, which in turn have a hollow cylindrical shape. Through this column, the liquid to be processed can flow through.
  • arranged cylinder and hollow cylinder are assigned as electrode sections alternately the first electrode or the second electrode.
  • Electrode section a solid cylinder, the third, the fifth (possibly further)
  • Hollow cylinder electrode sections of the first electrode are electrode sections of the second electrode.
  • the electrode sections of the first electrode engage in the interspaces which are located between the two electrodes
  • Form electrode portions of the second electrode, a Form electrode portions of the second electrode, a.
  • the expression "at least partially intervening" describes the above-explained aspect in that the electrode sections are arranged in a same longitudinal section of the preparation section or only slightly offset axially relative to one another.
  • Liquid processing device is characterized in that the pair of electrodes comprises two electrodes, wherein one electrode has at least two electrode sections electrically connected in parallel, and wherein the other electrode has at least one electrode section or at least two electrode sections electrically connected in parallel.
  • the electrode portions are cup-shaped, in particular plate-shaped and extend parallel to a main flow direction of the liquid, wherein the electrode portions are stacked and spaced from each other.
  • the electrode sections of an electrode form intermediate spaces, into which the electrode sections of the other electrode at least partially engage. Adjacent electrode sections have different polarities from each other.
  • Electrode sections each cup-shaped, in particular plate-shaped formed, which means a flat two-dimensional structure with a small thickness and many times larger dimensions of width and length.
  • Electrode portions may be substantially or completely the same, that is, the lengths may differ from one another by at most 30%, preferably at most 15%, more preferably at most 5%, or be identical.
  • the widths of the electrode sections are based on the available internal dimensions of the free flow cross section of the
  • the thicknesses of the electrode sections are based on the stability requirements placed on the electrode sections and are many times smaller than the widths and lengths.
  • Electrode sections of the first electrode and the shell-shaped or plate-shaped electrode sections of the second electrode of the electrode pair are advantageously arranged in a same longitudinal section of the preparation section, which means that the end sides of the electrode sections arranged transversely to the main flow direction lie in a common plane or are displaced only slightly axially relative to one another. For example, differ by a maximum of 30%, preferably by a maximum of 15%, more preferably by a maximum of 5% with respect to the length of the longest electrode section in the main flow direction. That the shell-shaped or plate-shaped electrode sections are substantially, in particular completely parallel to a main flow direction of the liquid (and thus also parallel to each other) means that the
  • Electrode sections have longitudinal directions which deviate only slightly at an angle from the main flow direction, for example, at an angle of at most 10 degrees, preferably at most 5 degrees, particularly preferably not tilted against each other.
  • the end faces (or cross sections) of the electrode sections may be rectangular or arcuate or wavy with a small thickness. Accordingly, the electrode sections are flat plates or simply curved or wavy curved trays.
  • the axis of curvature or the axes of curvature of the shells are parallel to the longitudinal direction of the shells and thus substantially, in particular completely parallel to a main flow direction.
  • the general concept of Curved shell includes the special case of flat, not curved plate.
  • the electrode sections are stacked and spaced from each other, that is, the electrode sections with their width and length defined surfaces are stacked facing each other stacked. Between the electrode sections there are gaps or gaps whose shapes are determined by the shape of the adjacent ones
  • Electrode sections are defined. Through this column, the liquid to be processed can flow through.
  • Electrode sections are alternately assigned to the first electrode or the second electrode. For example, a first, third, fifth (possibly further)
  • Electrode portion of the first electrode and a second, fourth, sixth (possibly further) electrode portion associated with the second electrode.
  • the electrode portions of the first electrode engage in the
  • Gaps that form between the electrode portions of the second electrode, a are Gaps that form between the electrode portions of the second electrode, a.
  • Liquid processing device is characterized in that the electrodes and / or electrode portions are coated at least partially insulating. As a result, for example, deposits from the
  • Liquid processing device is characterized in that the liquid available free space between the electrodes and / or between the electrode sections in the range 0.1 to 20 millimeters, preferably in the range 1 to 10 millimeters. This provides for a sufficiently low flow resistance of the liquid with good training opportunity for the electric field.
  • Liquid processing fluid flowing through amount is ensured defined.
  • the liquid can be any suitable liquid.
  • Fluid treatment device for example, due to the
  • the conveyor may comprise a pump and a motor driving the pump, in particular an electric motor.
  • Energy supply unit which is provided to provide an electrical energy for generating a voltage applied to the electrodes and / or for operating the conveyor.
  • the energy supply unit may be integrated in the treatment line or arranged outside.
  • the energy supply unit may, for example, generate (convert) the energy itself and / or pass it through from an energy supplier.
  • Power supply network in particular a decentralized power supply network, and / or an electrical energy from solar energy generating
  • Photovoltaic module and / or an energy-storing, possibly rechargeable battery includes. This ensures safe energy provision.
  • Voltage pulse generator which is intended to voltage pulses for
  • Fluid treatment device is characterized by Filter means adapted to filter the liquid, the filter means being located upstream of the inlet or downstream of the outlet. Using the filter device, unwanted particles can be filtered out of the liquid.
  • the filter device can be
  • a cleaning and exemption of the filter device from the accumulated particles can be done by replacing the filter device or the filter element or by backwashing.
  • a liquid treatment device for treating, in particular sterilizing a liquid
  • the liquid is stored in a first container and is circulated and processed by the liquid processing device, and / or wherein the liquid from a first container through the
  • Liquid processing device flows into a second container and is thereby processed, and / or wherein the liquid flows from a first container through the liquid processing device into a working environment, wherein the liquid is treated, in particular sterilized, is.
  • the liquid processing device is in the liquid in the first container.
  • a conveyor including, for example, a pump and a motor driving the pump, delivers fluid through the
  • Liquid treatment device wherein the liquid is treated.
  • the liquid then returns to the first container.
  • the liquid is constantly circulated and increasingly processed, until finally the entire liquid is circulated and processed.
  • the liquid treatment device is arranged at the outlet of a first container filled with liquid to be processed.
  • the liquid flows through the liquid treatment device under the action of gravity and is thereby processed.
  • it flows as prepared liquid further into a second container.
  • the liquid flows directly into a working environment, for example drinking water flows into a shower, a kitchen workstation, a drinking water bottle or a drinking cup.
  • the method according to the invention for processing, in particular sterilizing a liquid by means of a liquid treatment device comprises supplying liquid to be reprocessed stored in a first container via an inlet, a discharge of treated liquid via an outlet into the first container and / or into a second container and / or into a utility environment, as well as a passage of a liquid-conductively connecting the inlet with the outlet treatment line with liquid.
  • At least one electric field is generated in and / or at the preparation section by means of electrodes set under electrical voltage, and the
  • Substantially, in particular completely, to be permeated by the electric field means that at least 80%, preferably at least 95%, particularly preferably at least 99% of the liquid to be treated or the entire liquid flows through a flow space which is defined as being geometrically of the straight connecting lines and / or flat connecting surfaces, which span between each two points and / or two edges of the two electrodes, wrapped and / or penetrated.
  • the electric field acts on the ingredients of the liquid to be processed, in particular biological contaminants such as pathogens, microorganisms, bacteria.
  • An advantageous embodiment of the method is characterized in that the liquid flows through the preparation section and is penetrated by at least two in the main flow direction of the liquid serially successive, spaced-apart, stationary electric fields.
  • a stationary electric field is a field whose polarity and strength are in the
  • Immutable means that a field strength of the electric field deviates less than 10%, preferably less than 5% from its nominal value during a process sequence in spatial, temporal and electrical terms. Creating it is especially easy.
  • the liquid undergoes two field pulses when passing through the stationary field, as it successively enters a first electric field in time, flows through it, thereby experiences a field pulse, and emerges from it, then flows through the distance between the first and a second electric field, and then enters the second electric field, flows through it, thereby experiencing a field pulse, and emerges from it.
  • a pulse or impulse is on temporally limited, in particular a momentarily acting parameter, accordingly, a field pulse is a time-limited, in particular a short-term acting electric field.
  • the field pulse results from the fact that the stationary electric field acts only briefly on each partial volume element of the liquid flowing past it.
  • Part volume element is here any, in the liquid aggregate with moving, considered isolated, arbitrarily small amount of liquid understood, from which the liquid aggregate is composed and like any other the treatment section flowing through the partial volume element is penetrated by the electric field.
  • a pulsed electric field is a transient in time and / or electrical field, the field strength switches, for example, in a regular or irregular recurring sequence at least between a first value and a second value in the manner of a single-step function or in the manner of a pulse train. Or wherein the field strength switches between a first value, a second value and a zero value in the manner of a two-stage staircase function.
  • a pulsed electric field may also be called a pulsed electric field.
  • a timing of the electric field is thus designed so that at given flow velocity of the liquid and selected spatial extent of the electric field in the main flow direction between entry into the field and exit from the field 1 to 100 field pulses this partial volume element act. With the number of pulses increases a quality of the treatment of the liquid.
  • a time duration of a field pulse of the pulsed electric field in the range 0.01 to 100 milliseconds, in particular in the range 0.1 to 10 milliseconds.
  • the duration of a field pulse is measured between an incipient increase in the field strength from an initial value (for example, field strength zero) to a target value until the completed fall of the field strength from the target value back to the initial value.
  • Field pulses can follow one another directly or be separated from pauses; in the pauses, a field strength is for example the initial value.
  • an applied to the liquid field strength of the electric field in the range 0.1 to 10 kilovolts per millimeter, in particular in the range 2 to 6 kilovolts per millimeter.
  • an applied to the liquid field strength of the electric field in the range 0.1 to 10 kilovolts per millimeter, in particular in the range 2 to 6 kilovolts per millimeter.
  • an applied to the liquid field strength of the electric field in the range 0.1 to 10 kilovolts per millimeter, in particular in the range 2 to 6 kilovolts per millimeter.
  • an applied to the liquid field strength of the electric field in the range 0.1 to 10 kilovolts per millimeter, in particular in the range 2 to 6 kilovolts per millimeter.
  • an applied to the liquid field strength of the electric field in the range 0.1 to 10 kilovolts per millimeter, in particular in the range 2 to 6 kilovolts per millimeter.
  • the electric field has a constant polarity, in particular an intermittently constant polarity.
  • the electric field throughout the same field direction and have the electrode and the counter electrode on the same polarity, ie, for example, electrode constant at the positive pole, counter electrode
  • the electric field has an alternating polarity.
  • the polarity of the electrode and the counter electrode changes in a time-regular or irregular sequence and the field direction of the electric field changes. This can have a positive effect on the puncture resistance.
  • the electric field is generated substantially, in particular completely, only when flowing through the liquid processing device.
  • the flow can, for example, with a manual or a flow-responsive switch or on the basis of
  • Liquid flow through the processing line coincides exactly in time with the beginning and end of the generation and application of the electric field.
  • the beginning and the end of the liquid flow coincide in time largely with the beginning and end of generating and applying the electric field, with deviations of a maximum of 10 seconds, preferably a maximum of 5 seconds, more preferably a maximum of 1 second.
  • Deviation in this context means a flow without a field is applied.
  • At least one parameter of the electric field is changed as a function of a flow velocity of the liquid.
  • Flow rate here means the mean flow velocity of the liquid flowing through the treatment line.
  • a slower-flowing liquid can be treated with a lower pulse rate, with shorter field pulses, with a lower field strength than a faster-flowing liquid.
  • FIG. 1 shows four uses of liquid treatment devices in
  • FIG. 2 shows a liquid processing device in longitudinal and cross-section
  • FIG. 3 shows a liquid treatment device in longitudinal and cross-section
  • FIG. 4 shows a liquid treatment device in longitudinal and cross-section
  • FIG. 5 shows a liquid processing device in longitudinal section.
  • FIG 1 discloses four uses of the invention
  • FIG. 1 a shows a liquid 12 arranged in a first container 10
  • the Liquid treatment device 20 sucks liquid 121 to be processed from the first container 10, passes it through the
  • FIG. 1b shows a liquid processing device 20 arranged in a first container 10 in a liquid 12
  • Liquid treatment device 20 sucks liquid 121 to be processed from the first container 10, passes it through the
  • Liquid treatment device 20 wherein the liquid 12 is treated, and discharges them as prepared liquid 122 via a pipe or a hose 13 into a second container 11.
  • Liquid processing devices 20 of Figures la and lb include for their operation a conveyor 15.
  • Figure lc showed a on a
  • FIG. 1 d shows a liquid processing device 20 arranged at an outlet cross section of a first container 10.
  • the liquid 121 to be treated flows out of the first container 10 under gravity
  • Fluid treatment device 20 where it is processed.
  • the treated liquid 122 for example drinking water, flows into a drinking cup 14.
  • the drinking cup 14 is an application in a utility environment 40.
  • the utility environment 40 may also be a kitchen, a bathroom, a bathroom
  • Liquid treatment devices 20 of Figures lc and ld need for their operation no conveyor, since the liquid under
  • An energy supply unit 50 supplies the electrodes and the conveyor 15 with electrical energy and can connect a power supply to a power supply network and / or a
  • FIG. 2 discloses a liquid processing device 20 in longitudinal section ( Figure 2a) and cross-section ( Figure 2b).
  • This liquid processing device 20 comprises an inlet 21, an outlet 22, a preparation section 23 connecting the inlet 21 to the outlet 22 in fluid-conducting manner, a wall 26 and three pairs of electrodes each having a first electrode 24 and a second electrode 25.
  • the first electrodes 24 are completely circumferential arranged on the wall 26.
  • the second electrodes 25 are arranged coaxially within the treatment section 23.
  • Coaxial means that a longitudinal axis (cylinder axis) 29 of the second electrode 25 is identical to a main flow direction 30 of the liquid 12 in the treatment section 23.
  • the electrodes 24, 25 may be coated on the surface at least partially insulating (not shown).
  • Liquid 12 flows through the preparation section 23 and is penetrated by three in the main flow direction 30 of the liquid 12 serially successive, spaced-apart, electric fields 28.
  • These may be stationary electric fields 28 which maintain their respective polarity continuously (constant polarity) whose polarities change from the first electrode pair to the second electrode pair and from the second electrode pair to the third electrode pair (as inverted by each other) as indicated by the plus and minus signs indicated.
  • they may be intermittently constant polarities, which are interrupted by pauses without application of an electrical voltage (without electrical connection).
  • the electrical connection to the electrodes 24, 25 or electrode sections arranged in the interior of the flow space of the preparation section 23 can be carried out - electrically isolated - through the web-shaped connecting elements 27.
  • FIG. 3 discloses a liquid processing device 20.
  • FIG. 3a shows the longitudinal section of a liquid processing device 20 with an electrode pair comprising two electrodes 24, 25.
  • the first electrode 24 has two electrically connected, parallel-connected hollow circular cylindrical
  • the second electrode 25 has two electrically connected, parallel-connected electrode sections 251, 252.
  • the electrode portion 251 is formed voll Vietnamesezylindrisch, the
  • Electrode portion 252 is formed hollow cylindrical. The
  • Electrode portions 241, 242, 251, 252 have different diameter and extend axially parallel to a
  • the electrode sections 241, 242, 251, 252 are arranged coaxially and radially spaced from each other.
  • the electrode sections 241, 242 of the first electrode 24 form intermediate spaces, into which the electrode sections 251, 252 of the second electrode 25 engage.
  • Adjacent electrode sections have different polarities from each other. The polarities are of alternating nature here.
  • the electrode sections are of alternating nature here.
  • the first electrode 241, 242 of the first electrode 24 may be connected to an electrical conductor L.
  • temporally successive rectangular voltage pulses with alternating signs are applied to the electrical conductor L.
  • voltage functions of another type with alternating signs can be present.
  • the electrode sections 251, 252 of the second electrode 25 may be connected to an electrical neutral conductor N. Between the electrode sections form electric fields 28. When voltage pulses are applied, pulsed electric fields 28 occur.
  • FIG. 3b shows the cross-section of that explained under FIG. 3a
  • Fluid treatment device 20 with fully circular cylindrical or
  • FIG. 3c shows an alternative cross-section of the liquid treatment device 20 explained in FIG. 3a, wherein the electrode sections 241,
  • FIG. 4 shows a liquid processing device 20.
  • FIG. 4a shows the longitudinal section of a liquid processing device 20 with three pairs of electrodes each comprising two electrodes 24, 25.
  • the first electrode 24 has four electrically connected, parallel-connected, plate-shaped electrode sections 243, 244, 245, 246.
  • the second electrode 25 has three electrically connected, parallel-connected, plate-shaped
  • Electrode sections 253, 254, 255 on. Plates represent a special geometric form of shells, their radius of curvature goes to infinity.
  • the electrode sections 243, 244, 245, 246, 253, 254, 255 extend with their longitudinal axis axially parallel to a main flow direction 30 of the liquid 12.
  • the electrode sections 243, 244, 245, 246, 253, 254, 255 are stacked at a distance from one another.
  • the electrode sections 243, 244, 245, 246 of the first electrode 24 form interspaces into which the electrode sections 253, 254, 255 of the second electrode 25 engage.
  • Electrode portions 243, 244, 245, 246, 253, 254, 255 applied polarities are indicated by the references to conductor L and neutral N.
  • FIGS. 4b and 4d show possible cross sections of the liquid processing device 20 with round contour explained in FIG. 4a.
  • FIGS. 4c and 4e show alternative cross sections of the angularly contoured liquid processing device 20 illustrated in FIG. 4a.
  • FIG. 5 discloses a fluid treatment device 20 having an inlet 21, an outlet 22, a preparation section 23, a wall 26 and a pair of electrodes having a first electrode 24 and a second electrode 25.
  • the first electrode 24 is arranged peripherally on the wall 26.
  • the second electrode 25 is disposed within the processing line 23.
  • Liquid processing device 20 comprises a conveyor 15 which is arranged at the outlet 22 downstream of the liquid processing device 20.
  • the conveyor 15 comprises a pump 16 (shown schematically here by an impeller) and an electric motor 17 for driving the pump.
  • the liquid treatment device 20 comprises a filter device 18 with filter element 19 for removing particles from the liquid 121 to be processed.
  • the filter device 18 is at the inlet 22 upstream of the liquid processing device 20, so that the entering into the liquid processing device 20,
  • Liquid treatment device 20 an energy supply unit 50 for providing and / or generating electrical energy, by means of the one
  • the power supply unit 50 may connect a power to
  • Power supply network and / or a photovoltaic module and / or a battery With such an energy supply unit 50, an easily implementable implementation is provided that the electric field 28 is generated only when flowing through the liquid processing device 20.
  • the electrical energy is supplied to a voltage pulse generator 56 which supplies the electrodes 24, 25 with voltage, in particular with voltage pulses.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne un dispositif de traitement de liquide, notamment un dispositif de traitement de liquide mobile selon la revendication (1), une utilisation d'un dispositif de traitement de liquide selon la revendication (10) et un procédé, selon la revendication (11), pour traiter, notamment stériliser, un liquide, en particulier de l'eau. Au moins une paire d'électrodes est conçue pour générer au moins un champ électrique qui traverse le liquide dans un tronçon de traitement, ledit liquide étant traité, notamment stérilisé, par électroporation irréversible
EP17757548.7A 2016-08-31 2017-08-25 Dispositif de traitement de liquide, son utilisation et procédé de traitement d'un liquide Withdrawn EP3507248A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016216400.7A DE102016216400A1 (de) 2016-08-31 2016-08-31 Flüssigkeitsaufbereitungsvorrichtung, Verwendung einer Flüssigkeitsaufbereitungsvorrichtung, sowie Verfahren zum Aufbereiten einer Flüssigkeit
PCT/EP2017/071436 WO2018041738A1 (fr) 2016-08-31 2017-08-25 Dispositif de traitement de liquide, son utilisation et procédé de traitement d'un liquide

Publications (1)

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EP3507248A1 true EP3507248A1 (fr) 2019-07-10

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EP17757548.7A Withdrawn EP3507248A1 (fr) 2016-08-31 2017-08-25 Dispositif de traitement de liquide, son utilisation et procédé de traitement d'un liquide

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EP (1) EP3507248A1 (fr)
DE (1) DE102016216400A1 (fr)
WO (1) WO2018041738A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20118359U1 (de) * 2001-11-13 2002-03-21 Ionox Wasser Technologie Gmbh Vorrichtung zum keimfreien Zapfen von Getränken
US6746613B2 (en) 2002-11-04 2004-06-08 Steris Inc. Pulsed electric field system for treatment of a fluid medium
DE102005029148B4 (de) 2005-06-23 2013-10-31 Eisenmann Ag Vorrichtung zur Luftaufbereitung sowie Oberflächenbehandlungsanlage mit derselben
DE102007028580A1 (de) 2007-06-19 2008-12-24 Siemens Ag Vorrichtung zum Reinigen und Entkeimen von Flüssigkeiten
EP2186780A1 (fr) * 2007-07-12 2010-05-19 H2O Concepts International Inc. Dispositif et procédé destinés à la réduction de bactéries et de virus dans l'eau à l'aide d'un champ électrique actif contrôlé
DE102007039115A1 (de) 2007-07-24 2009-01-29 Breuer, Birgit Verfahren und Vorrichtung zur Aufbereitung organischer und/oder anorganischer Medien
DE102010043845A1 (de) * 2010-11-12 2012-05-16 Aqora Gmbh Spendearmatur für die Abgabe von Flüssigkeit
JP5749852B2 (ja) 2011-03-24 2015-07-15 エンパイア テクノロジー ディベロップメント エルエルシー 水を処理するために流れ発生器を使用する流体処理方法およびシステム

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DE102016216400A1 (de) 2018-03-01

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