EP2866843A1 - Filter und verfahren zur ultrafiltration - Google Patents
Filter und verfahren zur ultrafiltrationInfo
- Publication number
- EP2866843A1 EP2866843A1 EP13732508.0A EP13732508A EP2866843A1 EP 2866843 A1 EP2866843 A1 EP 2866843A1 EP 13732508 A EP13732508 A EP 13732508A EP 2866843 A1 EP2866843 A1 EP 2866843A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- ultrafiltration
- water
- membranes
- water dispenser
- 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- Withdrawn
Links
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims description 11
- 239000012528 membrane Substances 0.000 claims abstract description 54
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 94
- 210000001601 blood-air barrier Anatomy 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 13
- 239000003651 drinking water Substances 0.000 claims description 11
- 235000020188 drinking water Nutrition 0.000 claims description 11
- 238000005342 ion exchange Methods 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 230000003115 biocidal effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000012466 permeate Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000007789 gas Substances 0.000 description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 244000052616 bacterial pathogen Species 0.000 description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 4
- 239000004695 Polyether sulfone Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 229920006393 polyether sulfone Polymers 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010943 off-gassing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 235000020965 cold beverage Nutrition 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 235000012171 hot beverage Nutrition 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/022—Filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/024—Hollow fibre modules with a single potted end
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/024—Hollow fibre modules with a single potted end
- B01D63/0241—Hollow fibre modules with a single potted end being U-shaped
-
- 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
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2623—Ion-Exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2626—Absorption or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2649—Filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2319/00—Membrane assemblies within one housing
- B01D2319/06—Use of membranes of different materials or properties within one module
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/48—Antimicrobial properties
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
- C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- 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
- C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug
Definitions
- the invention relates to a method and a filter for ultrafiltration.
- the invention relates to a filter for water treatment, which ausgasende
- Filter media such as activated carbon or
- the invention relates to both gravity-driven and pressure-operated water filters.
- Sterilize as bacteria usually can not pass such a filter. This will be sterile
- capillary membranes are known as filter medium for ultrafiltration, in which the wall of the capillary forms the membrane.
- filters for ultrafiltration are therefore also suitable for sterilizing or disinfecting drinking water. It has been shown, however, that the drinking water used frequently contains gases, for example carbon dioxide or carbon dioxide, or air as a result of outgassing media, which lead to bubble formation in the filter and this
- filters for ultrafiltration are not consistent for gas bubbles. Rather, it has become established in practice that gas bubbles are used to check a filter for ultrafiltration on its functionality. In the so-called bubble-point test, it is checked whether the filter medium
- Ion exchangers which hydrogen ions against alkali or alkaline earth ions, it comes as a result of gas formation to a blockage of the ultrafilter.
- Known gravity-driven water balance filters typically include an ion exchange resin. It is also known to add activated carbon to the filter medium. It is also known to use a fleece to remove suspended matter. With these approaches, however, bacteria in drinking water can not be safely removed.
- Hot drinks usually contain ion exchangers which exchange hydrogen ions and activated carbon.
- activated carbon and formed during the ion exchange of carbon dioxide or carbon dioxide can be used according to the prior art, no ultrafilter after the water filters, since the ultrafilters block as a result of the gases.
- the filter material chemical substances can be added with disinfecting effect.
- this can have negative effects on the water.
- in a gravity-driven filter usually does not come to a continuous release of the disinfectant, so that a sufficient effect is not always guaranteed over the entire life of the filter material. It is further known that water dispensers with a
- Storage tank which are often designed for dispensing cooled and / or uncooled water, bring with it the danger that germs multiply in the water.
- germs may form in particular in the vicinity of the outlet of the water dispenser, which naturally can not be reached by the heated water but are flushed out when the water dispenser is actuated.
- the invention has the object, a device or a method for
- the invention further relates to a
- the invention relates to a filter for ultrafiltration, ie a filter by means of which in particular
- the filter for ultrafiltration comprises a membrane packet which according to the invention comprises partially hydrophobic membranes.
- Hydrophobic membranes are understood to mean membranes whose surface at least partially does not wet with water when the filter is used as intended.
- Polyhalogenolefin in particular polytetraflouretylene (PTFE) can be used.
- PTFE polytetraflouretylene
- the remaining membranes of the membrane package that is, the non-hydrophobic membranes formed in the context of the invention are wetted with water when used as intended.
- a polyethersulfone can be used for these membranes. Also conceivable is the use of
- Polyethersulfone allows the formation of a filter for ultrafiltration, which is usually suitable for a gravity-driven operation.
- the invention is based on the finding that the hydrophobic membranes are not wetted with the medium to be filtered, but that gas bubbles rise in or along the hydrophobic membranes and can leave the filter.
- the membrane packet to less than 50%, preferably less than 25%, more preferably less than 50% hydrophobic membranes, in this sense, the number of membranes is understood.
- the membranes of the membrane package are in a preferred embodiment of the invention as Kapillarmembranen
- the open end of the membranes forms the permeate side, i.
- the membranes are arranged in a sleeve and bent over, so that the open ends of the membranes form the outlet of the filter.
- the water to be filtered thus runs from the outside into the
- the capillary membranes are preferably in the form of a bundle, the capillary membranes at least partially abutting one another.
- the fibers may be disordered or such
- the bundle is preferably folded, the ends of the capillary membranes being arranged on the permeate side.
- the capillary membranes preferably have a mean pore size of from 0.005 to 0.1 ⁇ m, preferably from 0.01 to 0.5 ⁇ m and more preferably from 0.015 to 0.025 ⁇ m.
- the capillary membranes preferably have an average diameter (outer diameter) of between 0.5 and 2 mm.
- the invention further relates to a process for the ultrafiltration of liquids, in particular of
- Drinking water wherein the liquid passes through a membrane pack of capillary membranes, which are partially hydrophobic, so that in the liquid gas present at least partially through the hydrophobic
- Capillary membranes is discharged.
- a filter for ultrafiltration as described above is used.
- the inventive method is particularly suitable for a gravity-powered operation.
- the invention further relates to a
- Gravity powered water balance filter This comprises a filter for ultrafiltration, in particular a filter for ultrafiltration as described above.
- the gravity-driven water balance filter usually includes a filter medium, which a
- Ion exchange material comprises.
- an ion exchange resin is used.
- gravity-driven water balance filters are used primarily for softening the water.
- pollutants, especially heavy metals can be removed.
- By additionally providing a filter for ultrafiltration it is also possible without the use of chemicals to remove bacteria almost completely and in a very simple manner from the water to be treated.
- Ultrafiltration is arranged below the ion exchanger.
- the ultrafiltration filter is another component of the water balance filter
- Ion exchange resin separable formed.
- Ion exchange material of the filter for ultrafiltration which usually has a longer life, separated and reused.
- the filter for ultrafiltration on the permeate side comprises a biocidal contact material.
- a biocidal contact material Under a biocidal
- Contact material is understood to mean materials which have a bactericidal and / or fungicidal action on contact with water.
- silver for example formed as a silver network, comes into consideration.
- Spout is prevented from germs, algae or fungi after removal of germs through the membrane pack form.
- connection of a silver mesh, which on the permeate side forms the last layer of the filter leads in a simple manner to the desired
- the invention further relates to a water dispenser.
- the water dispenser usually includes one
- Water reservoir and an actuator for dispensing drinking water which can be dispensed, for example, as a sweetened cold drink.
- the water dispenser may have a device for cooling the water to be dispensed. Furthermore, the water dispenser usually includes one
- Stand can be set up so in particular in the commercial sector so that customers can remove water.
- the water filter comprises a filter for ultrafiltration, which is preferably designed as an outlet of the water dispenser.
- the filter is designed as a spout, the water runs directly from the filter into the container of the user.
- the use of the water filter as the last component in the waterway ensures that even germs that form on or in the outlet can not be dispensed.
- the outlet is surrounded by a contact protection.
- a wall is provided which extends from above at least up to the height of the outlet, so that the outlet against
- the water dispenser comprises a filter, as described above, ie a filter for
- the water has a carbonic acid content of more than 50 mg / l, preferably more than 200 mg / l of carbon dioxide.
- the invention further relates to a filter cartridge for drinking water.
- this embodiment of the invention is designed as a pressure-operated filter cartridge, which is used for example in the inflow of a device for beverage preparation, in particular a coffee machine.
- Such filter cartridges are
- filter cartridges commonly referred to as filter cartridges and usually have a housing which comprises an inlet and a drain.
- Ion exchange material in particular filled with a weakly acidic cation exchange resin.
- the filter cartridge comprises a filter for ultrafiltration, on which preferably the outlet side, ie immediately before the expiration, is arranged.
- the filter for ultrafiltration is preferably as
- Membrane package formed, in particular with one or more features described above.
- a filter for ultrafiltration as described above is used, in which a membrane packet comprises hydrophobic membranes.
- hydrophobic membranes ensures that the filter cartridge is not blocked by gas bubbles.
- gas bubbles may be present in particular after connection of the water filter and be so large that they are not in operation but may permanently block the filter cartridge.
- Fig. 1 shows a schematic view of a filter for ultrafiltration 1.
- the filter for ultrafiltration 1 comprises a membrane packet 2, which in a sleeve 4, preferably made of
- Plastic is formed, is arranged.
- the membranes of the membrane packet 2 are formed as a bundle of capillary membranes 3, which is folded once.
- Capillary membranes 3 has.
- the sleeve 4 comprises fastening means 6, which
- FIG. 2 shows a schematic view of the end face, that is to say the outlet of the ultrafiltration filter 1.
- the capillaries 3b are designed to be hydrophobic, whereas the capillaries 3b are hydrophobic
- Capillary membranes 3a are so hydrophilic that they can absorb the water when used as intended. In operation, gas can now pass through the hydrophobic
- the water to be filtered passes through the open ends of the capillary membranes 3a.
- the filter for ultrafiltration can not be blocked by gas bubbles.
- Fig. 3 shows a schematic view of a
- the gravity-driven water balance filter 7 comprises a jug for receiving the filtered water.
- the water balance filter 7 comprises a funnel 9, is poured into the water to be treated.
- Filter cartridge 10 is detachably connected.
- the ultrafiltration filter 1 removes bacteria. When necessary replacement of the filter cartridge 2, the filter can be removed for ultrafiltration and
- the water dispenser 11 comprises a water container 12, which is inserted into a housing 13. On the housing, an actuating means 14 is arranged, on which the user can press. Then flows through the spout 15 water in the cup 16 of the user, which can be arranged in a standing surface of the housing 13.
- the outlet 15 is designed as a filter for ultrafiltration 1.
- the filtered water thus runs directly out of the ultrafiltration filter 1.
- a shock protection 17 is arranged in the form of a circumferential wall, by means of which it is prevented that the user unintentionally attacks the outlet 15 and contaminates it with bacteria.
- Fig. 5 and Fig. 6 is a variant of a filter for ultrafiltration 1 will be explained in more detail how it can be used in particular for the water dispenser described above.
- the ultrafiltration filter 1 comprises a silver mesh 19 as biocides
- Membrane packet 2 is arranged.
- the silver mesh 19 prevents germs, algae or fungi from forming in the adhering water. Between the silver mesh 19 and the membrane packet 2, an intermediate layer 18 may be provided, which
- FIG. 7 shows a filter cartridge 20, which comprises a filter for ultrafiltration 1.
- the filter cartridge 20 is as in a supply line
- the usable filter cartridge and includes an inlet 22 and a drain 23. About the inlet 22, the water to be treated runs into the housing 21 of
- Filter cartridge 20 and leaves the housing 21 through the drain 23.
- the path of the water is marked with arrows.
- Such a filter cartridge 20 is commonly referred to as a filter cartridge.
- activated carbon 24 germs are to be killed.
- the water reverses the flow and passes through a fine filter 26 in a riser 27 to be led to the outlet 23.
- ion exchange material 25 comprises the
- the ion-exchange material 25 does not pass through the water to be treated, but reaches the outlet 23 without an ion exchange taking place. In this way, the hardness of the water can be adjusted in a simple way in which softened water mixes with non-softened water.
- a filter for ultrafiltration 1 is now arranged before the outlet 23.
- This has a slightly larger diameter than the riser 27 and partially comprises hydrophobic membranes through which gas bubbles, which are present due to gases dissolved in the water and / or after the connection of the filter cartridge 20
- Ultrafiltration are provided to ensure that it is not blocked by dissolved gases in the water.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210105720 DE102012105720A1 (de) | 2012-06-28 | 2012-06-28 | Filter und Verfahren zur Ultrafiltration |
DE102012109267 | 2012-09-28 | ||
PCT/EP2013/063636 WO2014001506A1 (de) | 2012-06-28 | 2013-06-28 | Filter und verfahren zur ultrafiltration |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2866843A1 true EP2866843A1 (de) | 2015-05-06 |
Family
ID=48703530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13732508.0A Withdrawn EP2866843A1 (de) | 2012-06-28 | 2013-06-28 | Filter und verfahren zur ultrafiltration |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150298995A1 (de) |
EP (1) | EP2866843A1 (de) |
WO (1) | WO2014001506A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6715575B2 (ja) * | 2015-06-18 | 2020-07-01 | 住友化学株式会社 | 二酸化炭素分離方法及び二酸化炭素分離装置 |
HUE047651T2 (hu) | 2016-01-22 | 2020-05-28 | Baxter Int | Steril oldatos terméktasak |
DE112017000474T5 (de) | 2016-01-22 | 2018-09-27 | Baxter Healthcare Sa | Verfahren und Maschine zum Produzieren von Produktbeuteln für sterile Lösung |
US10688441B2 (en) | 2017-04-19 | 2020-06-23 | Mann+Hummel Gmbh | Integrated ultrafiltration membrane and ion-exchange filtration system |
NL2018750B1 (nl) * | 2017-04-20 | 2018-11-05 | Sterwater Int B V | Inrichting en werkwijze voor het zuiveren van leidingwater |
DE102020129850A1 (de) | 2020-11-12 | 2022-05-12 | Bwt Holding Gmbh | Wasserinstallationssystem sowie Verfahren zur Aufbereitung von Trinkwasser |
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US5443739A (en) * | 1992-09-17 | 1995-08-22 | J. Vogel Premium Water Company | Water purification and dispenser with uncontaminated mineral addition |
JP3468568B2 (ja) * | 1993-03-31 | 2003-11-17 | 川田 武豊 | 携帯用液体浄化器 |
US8080160B2 (en) * | 2000-12-25 | 2011-12-20 | Mitsubishi Rayon Co., Ltd. | Pitcher type water purifier and purification cartridge for the water purifier |
JP4863425B2 (ja) * | 2003-01-31 | 2012-01-25 | 三菱レイヨン株式会社 | 浄水カートリッジ及び浄水器 |
JP4838714B2 (ja) * | 2004-05-18 | 2011-12-14 | 三菱レイヨン株式会社 | 浄水器 |
JP4512455B2 (ja) * | 2004-09-06 | 2010-07-28 | 三菱レイヨン株式会社 | 自重濾過型浄水器及び浄水カートリッジ |
US20090008318A1 (en) * | 2006-12-04 | 2009-01-08 | Prismedical Corporation | Modular Water Purification and Delivery System |
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2013
- 2013-06-28 EP EP13732508.0A patent/EP2866843A1/de not_active Withdrawn
- 2013-06-28 US US14/408,701 patent/US20150298995A1/en not_active Abandoned
- 2013-06-28 WO PCT/EP2013/063636 patent/WO2014001506A1/de active Application Filing
Non-Patent Citations (2)
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See also references of WO2014001506A1 * |
Also Published As
Publication number | Publication date |
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WO2014001506A1 (de) | 2014-01-03 |
US20150298995A1 (en) | 2015-10-22 |
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