EP4259581A1 - Cartouche de minéralisation avec insert de minéralisation remplaçable - Google Patents

Cartouche de minéralisation avec insert de minéralisation remplaçable

Info

Publication number
EP4259581A1
EP4259581A1 EP21777244.1A EP21777244A EP4259581A1 EP 4259581 A1 EP4259581 A1 EP 4259581A1 EP 21777244 A EP21777244 A EP 21777244A EP 4259581 A1 EP4259581 A1 EP 4259581A1
Authority
EP
European Patent Office
Prior art keywords
water
dosing
bag
cartridge according
flow
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.)
Pending
Application number
EP21777244.1A
Other languages
German (de)
English (en)
Inventor
Bernd Heitele
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.)
Aclaris Lindau Zweigniederlassung Rebstein GmbH
Original Assignee
Aclaris Water Innovations 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 Aclaris Water Innovations GmbH filed Critical Aclaris Water Innovations GmbH
Publication of EP4259581A1 publication Critical patent/EP4259581A1/fr
Pending 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/451—Mixing liquids with liquids; Emulsifying using flow mixing by injecting one liquid into another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/316—Injector mixers in conduits or tubes through which the main component flows with containers for additional components fixed to the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71795—Squeezing a flexible container
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/686—Devices for dosing liquid additives
    • 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
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges

Definitions

  • the invention relates to a line-connected water filter cartridge for the mineralization of tap water according to claim 1 and a flexible bag that can be used in it according to claim 22.
  • Granules made from CaCo 3 or MgCo 3 are used, sometimes with small amounts of MgO and CaO.
  • Such filters are installed downstream, for example in the case of weakly mineralized water with a high corrosion potential, in particular treated water from reverse osmosis systems.
  • a small amount of CaCo 3 is dissolved due to the free carbonic acid.
  • weakly mineralized water is only suitable to a limited extent as a thirst quencher during physical activity, since it does not replace salts that are lost through sweating.
  • weakly mineralized water can be easily distinguished from well-mineralized water, since weakly mineralized water leaves a bitter note in the throat when it is left.
  • a pleasantly perceived mineralization is achieved from a conductivity of the drinking water of 200 ⁇ S/cm. From a mineralization with conductivity greater than 1500 ⁇ S/cm, however, you can taste the high mineral content and the water is perceived as salty. The taste then also depends on the specific composition.
  • mineral tablets In order to take the necessary minerals, especially when exercising, mineral tablets have often been added to the drinking water. These tablets consist mainly of the citrates of magnesium, calcium or potassium.
  • JP ' 2001347263 A a water filter cartridge is described in which activated carbon granulate is stored in a water-permeable replacement bag.
  • An opening of the exchange bag is closed by means of an O-ring and attached to a tube protruding into the exchange bag.
  • the individual parts are assembled so that they can be easily separated from one another for the purpose of easy recycling of the raw materials used.
  • EP 2 623 468 A2 discloses a water treatment system comprising a line connection head and a water treatment cartridge which can be connected to it.
  • a flexible, water-permeable, zip-lock bag can be inserted into the water treatment cartridge, in which citric acid or polyphosphate is stored in the form of compressed pellets with maximum contact with the water to be treated for delivery to the latter.
  • the object of this invention is now to propose an alternative possibility for the mineralization of water, in particular drinking water, by means of which large volume flows of water can be mineralized over a long period of time with a degree of mineralization that is as uniform as possible and stable in such a way that that the water treated in this way enables a good replacement of minerals sweated out during sporting activities, with a degree of mineralization that is perceived as pleasant at the same time and with the best possible use of the resources provided for this purpose.
  • the invention relates to a pipe-bound water treatment cartridge, comprising a housing in the form of a pressure vessel, an inlet and an outlet for water.
  • a storage container containing a concentrated salt solution in the form of a flexible bag for dosing salt solution into the water flow flowing through the housing is arranged in the housing through which the water flows.
  • Flexibly limp means that the bag's cover can deform and then remain in this shape without reshaping itself
  • Water treatment cartridge can be arranged downstream of the bag a metering device for dispensing the concentrated salt solution from the bag into the water flow.
  • the dosing device preferably comprises a resistance section for the water flow, in which and/or downstream of this resistance section a dosing line of the dosing device, which can be connected to the bag in a liquid-conducting manner, opens out as a dosing point.
  • a valve or the like can also be arranged on a metering line downstream of the bag storing the saline solution.
  • the circuit can be serial and/or parallel.
  • such a valve can be designed as a non-return valve.
  • Such valves work as automatic control elements. No outside intervention is required. With such a valve, a permanently stable dosing ratio can be set and also maintained.
  • At least part of the resistance section for the water flow is arranged upstream of the dosing point, and its flow resistance is adjusted in such a way that such a differential pressure results between the water flow and a dosing flow fed by the contents of the flexible bag, which results in a volume flow of the dosing flow that is essentially proportional to the water flow of the saline solution caused by the metering opening opening into the water flow.
  • the design of the bag as a flexible bag can also make a contribution. Because, on the one hand, it offers almost no resistance to its deformation and, on the other hand, does not reshape itself, it basically has no influence on the resistance conditions in the water flow and brine dosing flow set suction and thus dosing effect.
  • the water pressure acting on the outer shell of the flexible bag, in particular upstream of the resistance section, can also have a stabilizing effect on the dosing of the saline solution into the water flow.
  • the dosing device can also have a bag connection element for connection to a complementary
  • a simple and reliable change of the bag can e.g. be made possible in that the bag connection element is provided with a thread, a bayonet connection, a snap lock or the like, again detachable connection structure.
  • the complementary connection element is provided with a thread, a bayonet connection, a snap lock or the like, again detachable connection structure.
  • the dosing device can comprise a means for opening the flexible bag, preferably a piercing device, in particular a hollow needle. This opens the bag when making the connection and causes the saline solution to flow according to the suction behavior on the Dosing point is removed from the bag and added to the water flow.
  • the flexible bag can be hermetically sealed after it has been filled.
  • this results in a loss-free and hygienically safe provision of the saline solution and, on the other hand, a certain protection against manipulation.
  • the dosing device can be designed to be connectable to the outlet of the housing by means of a pressure vessel connection piece on the dosing device side. This means that it can also be separated from it again if necessary. E.g. for the purpose of cleaning and/or replacing it.
  • the part of the housing on which the outlet is formed which can be cup-shaped, for example, can also be cleaned in a resource-saving manner after separation from the dosing unit and used again.
  • the resistance path itself can also be accommodated in a cup-shaped structure of the dosing device.
  • the water treatment cartridge can, for example, • be set up as a two-chamber system.
  • the housing can accommodate a bag receiving cup and thus waterproof connectable have aüstrucken connection heads, both of which can be cleaned and reused, for example.
  • the bag can be designed so that it can be arranged in the housing such that at least part of the outside of the bag is directly and/or can be acted upon indirectly.
  • a salt bed of sulfate salt, chloride salt and/or hydrogen carbonate salt can be located in the storage container, ie the flexible bag, and a storage volume of concentrated salt solution can thus be present in the salt bed.
  • each content of a bag, practical, maintenance-free, wired filter cartridge can be used for mineralization.
  • the resistance path can be designed in the form of a bed of granules.
  • the dosing section or the dosing flow can also include a dosing section and/or a capillary.
  • This can e.g. B. have an inner diameter in a range of about 0.1 to 0.5 mm. Preferably an internal diameter of between 0.15mm and 0.4mm.
  • the desired dosing quantity can be reliably adjusted as a function of the viscosity of the concentrated salt solution to be dosed.
  • the water flow coming from the inlet can, in the operational orientation of the water filter cartridge, with the outlet pointing upwards.
  • This version works on the basis of a suction principle.
  • the brine solution is dosed directly from the resistance tube of the dosing section into the water flow of the water to be treated.
  • the brine dosage itself remains almost constant due to the suction principle, even with pressure fluctuations.
  • pressure fluctuations in the inlet such as those that occur when the entire filter is relieved, e.g. if the water pressure in front of the filter drops from 2 bar to 1 bar when a tap is opened, any air bubbles trapped in the saline solution tank expand. These air bubbles displace only a little saturated brine through the dosing pipe, which is difficult to flow through, in the direction of the outlet, where, on the other hand, most of the brine flows back into the large downpipe and does not cause an increase in the salt load in the mineralized water. That is, the principle of mineral dosing is based on a
  • Dosing of at least one concentrated salt solution which is or are stored inside a filter cartridge in at least one separate container.
  • the salt solution(s) have a solubility of at least 2 g/l (eg CaSO 4 ), but generally greater than 50 g/l and less than 8.00 g/l.
  • a preferred value for CaCl 2 or MgCl 2 is about 740 g/l. Calculated with CaCl 2 anhydrous. In this concentration range, the intended brine metering works reliably.
  • the at least one brine solution can preferably be metered into the water flow with a volume fraction of 0.05% to 2%.
  • RO water reverse osmosis water
  • a conductivity of less than 50 ⁇ S/cm for example, for 2 mmol hardness (approx. 11.2° dH) in the filtrate
  • approx. 0.8 ml brine solution consisting of magnesium sulphate per liter of RO water
  • the conductivity of such water is then around 600 ⁇ S/cm.
  • Dosing is done by tapping the differential pressure that occurs when the water stream flows through a resistance layer, along which the resistance path is formed.
  • Any granules e.g. in the case of a fill, can be used as a resistance layer.
  • a granulate with a grain size of 0.1 mm to 2 mm can be used for the bed, which in particular has a minimum extension of 1 cm in the direction of flow.
  • ion exchangers activated carbon or other particles (glass beads with an effective hydraulic particle size of approx. 0.1 to 2 mm) can be used.
  • the same granules are used for the resistance layer of the water flow and the resistance layer of the dosing flow.
  • the conductance of the water between inlet and outlet is preferably increased by at least 100 ⁇ S/cm to 2000 ⁇ S/cm, preferably by 600 ⁇ S/cm.
  • a dosing line in the form of a dosing tube protrudes into the resistance layer, which can preferably be filled with the same granules as in the resistance layer of the water flow.
  • the dosing ratio of dosing flow to water flow can thus be adjusted via the area ratios and the effective height of the resistance layer of the water flow and the effective height of the resistance layer of the dosing flow.
  • the resistance of the dosing tube must also be matched to the dynamic viscosity of the concentrated saline solution compared to the dynamic viscosity of water.
  • Highly concentrated salt solutions with a salt content greater than 250 g/l must be taken into account.
  • a concentrated CaCL 2 solution with up to 740 g/l salt has a significantly higher dynamic viscosity than pure water.
  • the dynamic viscosity of the salt concentrate can be about a factor of 4 higher than that of water. Accordingly, in order to compensate for the increased dynamic viscosity, the dosing cross-section must be increased by a factor of about 4 in order to achieve the desired dosing ratio.
  • the resistance section can also be formed by a capillary instead of a dosing tube filled with granules. If granules with a grain size of 0.1 to about 1 mm are used for the resistance section of the main flow, it has been shown that the inner diameter of the capillary to form the
  • a metering ratio between untreated water and brine that is largely independent of the flow rate can be achieved in the flow. In the example above, this is between 0.5 l/min to about 3 l/min. Since the water filter cartridge can be operated at a pressure of 0.2 bar to 8.0 bar, it can be easily connected to all common water supply lines.
  • the piped water filter cartridge can be a.
  • a dosing path in particular a dosing line, or a dosing flow with a resistance path in the form of a bed of granules and/or a capillary and/or another porous, permeable resistance component, for example a resistance component formed from sintered granules, which preferably has an inner diameter in have a range of 0.1 mm to 0.5 mm, in particular between 0.17 mm and 0.35 mm.
  • the resistance section of the dosing flow and the resistance section of the water flow can consist of the same granules.
  • the resistance path may also include a water filter material. This means that the water can also be cleaned, e.g. using activated carbon, to remove any germs in the water.
  • At least one concentrated salt solution of sulfate salts, chloride salts or hydrogen carbonate salts is present in the bag, the solubility of which is at least 2 g/l at 20°C, preferably at least 50 g/l at 20° C, in particular 740g/l at 20°C.
  • a particularly good mixture can be achieved if the metering ratio is adjusted in such a way that at least one salt solution with a volume fraction of 0.05% to 2% is metered into the water flow.
  • Water treatment cartridge is a flexible bag containing a concentrated saline solution for dosing saline solution into water to be treated by means of a pipe-connected water treatment cartridge.
  • Example Exemplary embodiments are described in more detail below with reference to the attached figure.
  • Fig. 1 As an example and schematically a
  • Sectional view of a water treatment cartridge is a sectional view of a water treatment cartridge.
  • FIG. 1 shows a pipe-connected water treatment cartridge 1, comprising a housing 2 in the form of a pressure vessel, an inlet 4 and an outlet 5 for water 3.
  • the flow direction of the water is symbolized by arrows 3.1, the water pressure generated by the water by arrows 3.2.
  • a reservoir 6 containing a concentrated salt solution 6.1 is arranged in the form of a flexible bag 6 for dosing salt solution 6.1 into the water flow flowing through the housing 2.
  • a dosing device 7 for dispensing the concentrated salt solution 6.1 from the bag 6 into the water flow 3.1 is arranged downstream of the bag 6.
  • the dosing device 7 comprises a resistance section 7.1 for the water flow 3.1, in which a dosing line 7.2 of the dosing device 7, which can be connected in a liquid-conducting manner to the bag 6, opens out as a dosing point 7.2.1.
  • a part of the resistance section 7.1 for the water flow 3.1 is " arranged upstream of the dosing point 7.2.1. Its flow resistance, i.e.
  • the resistance for the water flow flowing through is set in such a way that there is a differential pressure between the water flow and a dosing flow fed by the contents of the flexible bag which causes a volume flow of the metering flow of the saline solution 6.1 that is essentially proportional to the water flow 3.1 through the metering opening 7.2.1 that opens into the water flow 3.1.
  • a valve 8 in particular a check valve 8 can be arranged downstream of the bag 6 storing the saline solution 6.1 on the dosing line 7.2.
  • a check valve 8 is shown more in the upstream area of the metering line 7.2. However, it can also be arranged at a different point, in particular at the end of the dosing line 7.2.
  • the dosing device 7 has a dosing device-side bag connection element 7.3 for connection to a complementary dosing device connection element 6.3 on a bag 6.
  • this Bag connection element 6.3 has a thread. Designs with a bayonet connection, a snap lock or the like, which can be released again, would also be possible.
  • the dosing device 7 includes a means 7.4 for opening the flexible bag 6. In the embodiment shown, this is a piercing device in the form of a hollow needle 7.4.
  • the dosing device 7 can be connected to the outlet 5 of the housing 2 by means of a pressure vessel connection piece 7.5 on the dosing device side.
  • the resistance section 7.1 is accommodated in a cup-shaped structure 7.6 of the dosing device 7.
  • the housing 2 has a bag-receiving cup 2.1 (lower cup) and a connection head 2.2 (upper cup) that can be connected to it in a watertight manner. To replace the bag and/or for the purpose of cleaning, these two housing parts 2.1 and 2.2 can be separated and then connected to one another again after the desired process has been completed.
  • the bag 6 can be arranged in the housing in such a way that at least part of the outside 6.4 of the bag 6 can be acted upon directly and/or indirectly by the water pressure of the water 3.1 flowing in from the inlet.
  • a salt bed of sulphate salt, chloride salt and/or bicarbonate salt is present in the bag 6 and thus a reserve volume of concentrated salt solution is present in the salt bed.
  • the resistance section 7.1 is designed in the form of a bed of granules.
  • the dosing line 7.2 is designed as a resistance section in the form of a bed of granules and/or a capillary, which preferably has an inside diameter in a range from 0.1 to 0.5 mm, in particular between 0.17 and 0.35 mm .
  • the resistance section of the dosing flow 7.2 and the resistance section 7.1 of the water flow 6 consist of . the same granules.
  • the resistance section 7.1; 7.2 can include a water filter material for further treatment of the water.
  • the water flow coming from the inlet 4 is guided to the underside of the resistance section 7.1 in the operational orientation of the water filter cartridge 1, with the outlet 5 pointing upwards, so that the resistance section 7.1 flows through from bottom to top.
  • the bag contains at least one concentrated salt solution 6.1 of sulfate salts, chloride salts or hydrogen carbonate salts, the solubility of which is at least 2 g/l at 20°C, preferably at least 50 g/l at 20°C, in particular 740 g/l at 20°C.
  • the dosing ratio is adjusted so that at least one salt solution 6.1 with a volume fraction of 0.05% to 2% by volume . serstrom 3.1 is dosed.
  • a granulate with a grain size of 0.1 mm to 2 mm is provided for the bed, which in particular has a minimum extent (6.4; 7.4) of 1 cm in the direction of flow.
  • the conductance of the water 3.1 can be increased between the inlet (4) and the outlet (5) by at least 100 ⁇ S/cm to 2000 ⁇ S/cm, preferably by 600 ⁇ S/cm.
  • the operating pressure of the ' water filter cartridge 1 is preferably designed for a pressure of 0.2 bar to 8.0 bar.
  • the flexible bag 6 containing a concentrated saline solution is designed for dosing saline solution into the water 3.1 to be treated by means of a pipe-connected water treatment cartridge 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne une cartouche de traitement d'eau en ligne comprenant un boîtier sous la forme d'un cylindre de pression, et une entrée et une sortie pour l'eau. L'invention est caractérisée en ce que, à l'intérieur du boîtier à travers lequel s'écoule l'eau, est disposé un réservoir qui se présente sous la forme d'un sachet souple et contient une solution saline concentrée, pour l'ajout dosé de solution saline dans l'eau s'écoulant à travers le boîtier.
EP21777244.1A 2020-09-17 2021-09-09 Cartouche de minéralisation avec insert de minéralisation remplaçable Pending EP4259581A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020124294 2020-09-17
DE102020130906.6A DE102020130906B4 (de) 2020-09-17 2020-11-23 Leitungsgebundene Wasseraufbereitungskartusche
PCT/EP2021/074810 WO2022058234A1 (fr) 2020-09-17 2021-09-09 Cartouche de minéralisation avec insert de minéralisation remplaçable

Publications (1)

Publication Number Publication Date
EP4259581A1 true EP4259581A1 (fr) 2023-10-18

Family

ID=80351623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21777244.1A Pending EP4259581A1 (fr) 2020-09-17 2021-09-09 Cartouche de minéralisation avec insert de minéralisation remplaçable

Country Status (3)

Country Link
EP (1) EP4259581A1 (fr)
DE (1) DE102020130906B4 (fr)
WO (1) WO2022058234A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134234A1 (de) 2022-12-20 2024-06-20 ACLARIS GmbH, Lindau, Zweigniederlassung Rebstein Mineralisierungskartusche zur volumenstromabhängigen Mineralisierung von Trinkwasser

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931670A1 (de) * 1969-06-21 1971-01-14 Kupex Ag Verfahren und Vorrichtung zum Vermischen eines fluessigen Konzentrates mit Druckwasser
EP0153530A3 (fr) 1984-02-23 1987-06-10 Sybron Corporation Procédé et dispositif pour le dosage d'un courant liquide
JP3997383B2 (ja) 2000-06-06 2007-10-24 株式会社安川電機 浄水器
EP2623468B1 (fr) 2012-02-02 2019-08-21 Nuvo Residential, LLC Systèmes et procédés de traitement de l'eau
WO2014183203A1 (fr) * 2013-05-16 2014-11-20 Neet Innovations Appareil et procédé pour produire de l'eau filtrée et désinfectée
EP3412184A1 (fr) * 2017-06-07 2018-12-12 ICon GmbH & Co. KG Procédé et dispositif de fonctionnement d'une machine à café et/ou à thé avec de l'eau adoucie
US12017936B2 (en) 2019-03-15 2024-06-25 AQUIS Wasser-Luft-Systeme, GmbH, Lindau Zweigniederlassung Rebstein Mineralization cartridge and method for the operation thereof
DE102020106840A1 (de) 2020-03-12 2021-09-16 Wessel-Werk Gmbh Staubsaugerdüse und Verfahren zu deren Betrieb

Also Published As

Publication number Publication date
DE102020130906B4 (de) 2024-03-28
DE102020130906A1 (de) 2022-03-17
WO2022058234A1 (fr) 2022-03-24

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