WO1997006879A1 - Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau - Google Patents

Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau Download PDF

Info

Publication number
WO1997006879A1
WO1997006879A1 PCT/CH1995/000177 CH9500177W WO9706879A1 WO 1997006879 A1 WO1997006879 A1 WO 1997006879A1 CH 9500177 W CH9500177 W CH 9500177W WO 9706879 A1 WO9706879 A1 WO 9706879A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
cleaning
water
activated carbon
filter device
Prior art date
Application number
PCT/CH1995/000177
Other languages
German (de)
English (en)
Inventor
Adriano D'agostino
Original Assignee
Katadyn Produkte Ag
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 Katadyn Produkte Ag filed Critical Katadyn Produkte Ag
Priority to PCT/CH1995/000177 priority Critical patent/WO1997006879A1/fr
Publication of WO1997006879A1 publication Critical patent/WO1997006879A1/fr

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
    • C02F1/44—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
    • 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
    • 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
    • B01D61/20—Accessories; Auxiliary operations
    • 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
    • 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
    • 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 portable filter device for water treatment according to the preamble of claim 1.
  • Devices of this type are e.g. Offered as a travel filter or trekking filter and are used to clean and disinfect water of poor quality.
  • Known designs usually have at least one filter with a pore size that prevents the passage of physiologically dangerous bacteria. They are also equipped with a pump that can be operated with muscle power and with which the water is pushed through the filter.
  • the object of the present invention is therefore to provide a filter device of the type mentioned at the outset which avoids this disadvantage as far as possible and achieves satisfactory results with water of different qualities. This object is achieved by the filter device according to claim 1.
  • the filter device has at least two cleaning filters and the water can optionally be passed through both or only through one, it is possible to adapt the filtering to the respective water quality in a simple manner. If one of the filters is not required, it can be switched off. This protects it. At the same time, the force required for pumping also decreases.
  • a first of the cleaning filters is preferably designed to retain physiologically harmful bacteria. Such a filter is required in most applications.
  • the second filter can then e.g. optionally be switched into the water flow before the first cleaning filter. In this case, since the first filter is always the last filter in the watercourse, bacteria are also removed that e.g. in the second filter.
  • the second filter it is recommended that the second filter have a larger pore or mesh size than the first filter, so that floating particles are only caught in the first filter and undesirable contamination of the second filter is avoided.
  • An activated carbon filter is particularly suitable as the second filter, if possible combined with a coarse mechanical prefilter. With such a filter e.g. unwanted odors are removed from the water, which is an ideal addition to a bacteria filter.
  • the activated carbon is preferably filled into a container in the form of granules, the inputs and outputs of the container simultaneously forming the mechanical prefilter.
  • the activated carbon granulate can be exchanged as a consumable in such a container, while the container itself can be reused.
  • a particularly compact arrangement of the various cleaning filters is achieved by arranging each cleaning filter concentrically around a section of a central pump cylinder.
  • FIG. 1 shows a side view of a preferred embodiment of the invention
  • FIG. 2 shows a view of the device according to FIG. 1 from above
  • Figure 3 shows a longitudinal section through the device of Figure 1 and Figure 4 is a schematic block diagram of the
  • FIGS. 1-3 The embodiment of the invention shown in FIGS. 1-3 is a compact small filter with a housing 1 and a handle 2.
  • a filter arrangement with an activated carbon filter 3, a ceramic filter 4 and a switchover 5 arranged, the operation of which is described below.
  • the activated carbon filter 3 and the cylindrical ceramic filter 4 are arranged concentrically around a section of a pump cylinder 6, which extends through the longitudinal axis of the housing.
  • a piston 7 runs in the pump cylinder 6 and is sealed with a piston ring 8 against the cylinder wall.
  • the piston 7 is connected to the handle 2 via a piston rod 9.
  • the handle 2 is essentially cup-shaped. It comprises an end wall 11 with a convex outer surface 12, which merges into a nose 13 protruding on one side of the handle. Furthermore, it has an essentially cylindrical side wall 14. Grip ribs 15 are formed on the outside of the side wall 14 and extend transversely to the longitudinal axis of the device.
  • the housing 1 is subdivided into a front-side housing area 18, a foot-side housing area 19, 20 and a middle area 21 lying in between.
  • the front housing area 18 is cup-shaped, has a round cross-section and encloses the activated carbon filter 3. It is fastened to the central area 21 with a bayonet thread 22 and can be opened to remove the activated carbon filter 3.
  • the foot-side housing area 19, 20 comprises a cylindrical wall area 19 and a cover 20.
  • the cover 20 is screwed into the cylindrical wall area 19 with a bayonet thread 23 and can be opened to remove the ceramic filter 4.
  • Horizontal grip ribs 16 run on the outside of the wall area 19.
  • a suction connection 25 is arranged in the central area 21 of the housing 1. It is used to fasten a hose through which the water to be cleaned is fed.
  • the outlet 26 for the purified water is located at the foot of the device. It is set back in a thread 27 with which a standardized water bottle can be attached to the device.
  • Figure 3 shows the handle 2 in its rest position. In this rest position, its side wall 14 encloses the front housing area 18.
  • the inner cross section of the handle 2 essentially corresponds to the outer cross section of the housing area 18, so that in the rest position of the handle there is only a small distance between the two parts.
  • a rib 28 At the lower end of the side wall 14 of the handle 2 there is a rib 28 which is snapped into a groove 29 in the housing.
  • the handle When using the device, the handle is repeatedly moved back and forth in the longitudinal direction of the housing.
  • the user grips the handle 2 with the first hand and the housing 1 with the second hand.
  • the palm of the first hand preferably rests on the convex surface 12 and the fingers grip the side wall 14.
  • the changeover switch 5 If the changeover switch 5 is in its first (upper in FIG. 4) position, the water is passed through the space 33, the activated carbon filter 3 and line 35 back to the changeover switch 5 and from there via line 36 and ceramic filter 4 to the drain 26 . If the switch 5 is in its second position, the water reaches the ceramic filter 4 via line 36 and from there to the drain 26 without passing through the activated carbon filter 3.
  • the activated carbon filter 3 can optionally be switched into the filter path upstream of the ceramic filter 4. This has the advantage that the activated carbon filter 3 is only used when it is really needed. This increases the lifespan of this filter.
  • the activated carbon filter 3 serves primarily to improve the taste and dechlorination of the water. It preferably consists of an activated carbon granulate based on coconut shell with a granulate size of e.g. 12 - 100 USS, preferably 30 to 50 USS and is enclosed in a container 40.
  • the container 40 has inlet and outlet openings, in each of which a filter network 41 or 42 with a mesh size of approximately 10 ⁇ m, e.g. 50 microns is arranged.
  • This filter network prevents coarse suspended particles from entering the activated carbon granules and getting caught there. Finer particles are not stopped by the activated carbon granulate and get into the ceramic filter. Thus, unnecessary contamination of the activated carbon granulate is avoided.
  • the activated carbon granules in the container 40 can be replaced, while the container 40 with the filter networks 41, 42 can be reused.
  • the ceramic filter 4 serves to retain physiologically harmful bacteria. terien. It consists, for example, of a ceramic based on diatomaceous earth and has a pore size of 0.2 ⁇ m, for example, which is sufficiently small to prevent the passage of such bacteria.
  • Activated carbon filter has the advantage that any bacteria from the activated carbon filter are retained. Unwanted contamination of the activated carbon filter is prevented by the relatively large granule size and the mesh filter 41, 42. Very coarse suspended matter sticks to the mesh filters, while finer suspended matter passes through the activated carbon granulate unhindered and is collected in the ceramic filter 4.
  • the shape of the handle shown in Figure 1 is only one of the possible embodiments of the invention. So the handle and e.g. also have an oval or rectangular cross section.
  • the nose 13 can also be chosen larger at the expense of compactness or can be omitted entirely.
  • the side wall 14 does not have to be closed, it can also encompass only part of the housing laterally.
  • another filter material can also be used to retain bacteria. Depending on the application, this can also be done
  • Activated carbon filter 3 can be replaced by another filter type.

Landscapes

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

Abstract

Dispositif de filtration comprenant un boîtier (1) et une pompe actionnable manuellement (2, 6, 7, 8). Un filtre au charbon actif (3) et un filtre céramique (4) sont disposés concentriquement autour du cylindre de la pompe (6). Le filtre au charbon actif sert à la neutralisation du goût, et le filtre céramique (4), à la stérilisation de l'eau. Un commutateur (5) permet de contrôler l'écoulement de l'eau à travers le filtre. L'eau peut circuler ou bien uniquement à travers le filtre céramique (4), ou bien tout d'abord à travers le filtre au charbon actif (3) puis à travers le filtre céramique (4). De cette façon, il est possible d'adapter le dispositif de filtration à la qualité de l'eau et de ménager le filtre au charbon actif (3).
PCT/CH1995/000177 1995-08-11 1995-08-11 Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau WO1997006879A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CH1995/000177 WO1997006879A1 (fr) 1995-08-11 1995-08-11 Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1995/000177 WO1997006879A1 (fr) 1995-08-11 1995-08-11 Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau

Publications (1)

Publication Number Publication Date
WO1997006879A1 true WO1997006879A1 (fr) 1997-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1995/000177 WO1997006879A1 (fr) 1995-08-11 1995-08-11 Dispositif de filtration portable a plusieurs etages filtrants pour le traitement de l'eau

Country Status (1)

Country Link
WO (1) WO1997006879A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001249A (en) * 1997-11-06 1999-12-14 Dart Industries Inc. Multi-stage water filter system
WO2000002816A1 (fr) * 1998-07-09 2000-01-20 Clear Water 42 Holding Asa Filtre a charbon actif, element filtrant ceramique et systeme d'epuration d'eau comprenant ces deux filtres
WO2002042217A1 (fr) * 2000-11-22 2002-05-30 Polar Light Limited Ensemble de filtres pour purificateur d'eau domestique
WO2005068367A2 (fr) * 2004-01-07 2005-07-28 Longmark Industries, Llc Assainisseur et desodorisant environnementaux permettant de purifier les aliments, les surfaces, l'air et l'eau comprenant une electrode de production d'ozone jetable, injecteur venturi a pression/ecoulement reglable et dispositif de filtre a phase aqueuse
WO2016049674A1 (fr) 2014-10-01 2016-04-07 Deltacore Gmbh Dispositif pour filtrer de l'eau
WO2018104737A1 (fr) * 2016-12-07 2018-06-14 Icon Lifesaver Limited Bouteille de boisson
WO2021152561A1 (fr) * 2020-01-30 2021-08-05 S.B.I.D Solutions, Enterprise And Investments Ltd. Distributeur d'eau chaude et froide doté d'un filtre pour le jour de la semaine et du sabbat et procédé associé
US11413558B1 (en) 2018-11-28 2022-08-16 Gautham Parangusa Das Water filtration apparatus and process
US12091330B2 (en) 2022-03-17 2024-09-17 Gautham Parangusa Das Apparatus and process for removing PFAS and PFAS compounds from water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019252A (en) * 1986-02-20 1991-05-28 Ube Industries, Ltd. Portable water purifier
US5102542A (en) * 1990-01-25 1992-04-07 Electrolux Water Systems, Inc. Construction of canister-type filters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019252A (en) * 1986-02-20 1991-05-28 Ube Industries, Ltd. Portable water purifier
US5102542A (en) * 1990-01-25 1992-04-07 Electrolux Water Systems, Inc. Construction of canister-type filters

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001249A (en) * 1997-11-06 1999-12-14 Dart Industries Inc. Multi-stage water filter system
WO2000002816A1 (fr) * 1998-07-09 2000-01-20 Clear Water 42 Holding Asa Filtre a charbon actif, element filtrant ceramique et systeme d'epuration d'eau comprenant ces deux filtres
WO2002042217A1 (fr) * 2000-11-22 2002-05-30 Polar Light Limited Ensemble de filtres pour purificateur d'eau domestique
US10799608B2 (en) 2004-01-07 2020-10-13 Badger-Veripure, Llc Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device
WO2005068367A2 (fr) * 2004-01-07 2005-07-28 Longmark Industries, Llc Assainisseur et desodorisant environnementaux permettant de purifier les aliments, les surfaces, l'air et l'eau comprenant une electrode de production d'ozone jetable, injecteur venturi a pression/ecoulement reglable et dispositif de filtre a phase aqueuse
WO2005068367A3 (fr) * 2004-01-07 2006-05-26 Longmark Ind Llc Assainisseur et desodorisant environnementaux permettant de purifier les aliments, les surfaces, l'air et l'eau comprenant une electrode de production d'ozone jetable, injecteur venturi a pression/ecoulement reglable et dispositif de filtre a phase aqueuse
US7524466B2 (en) 2004-01-07 2009-04-28 Longmark Industries, L.L.C. Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device
US8377385B2 (en) 2004-01-07 2013-02-19 Veripure, Llc Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device
US8834804B2 (en) 2004-01-07 2014-09-16 Veripure, Llc Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device
US9585979B2 (en) 2004-01-07 2017-03-07 Veripure, Llc Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device
WO2016049674A1 (fr) 2014-10-01 2016-04-07 Deltacore Gmbh Dispositif pour filtrer de l'eau
WO2018104737A1 (fr) * 2016-12-07 2018-06-14 Icon Lifesaver Limited Bouteille de boisson
JP2020507447A (ja) * 2016-12-07 2020-03-12 アイコン ライフセイバー リミテッドＩｃｏｎ Ｌｉｆｅｓａｖｅｒ Ｌｉｍｉｔｅｄ 水筒
GB2573258A (en) * 2016-12-07 2019-10-30 Icon Lifesaver Ltd A drinking bottle
US11046606B2 (en) 2016-12-07 2021-06-29 Icon Lifesaver Limited Drinking bottle
JP7065095B2 (ja) 2016-12-07 2022-05-11 アイコン ライフセイバー リミテッド 水筒
GB2573258B (en) * 2016-12-07 2023-02-01 Icon Lifesaver Ltd A drinking bottle
US11413558B1 (en) 2018-11-28 2022-08-16 Gautham Parangusa Das Water filtration apparatus and process
WO2021152561A1 (fr) * 2020-01-30 2021-08-05 S.B.I.D Solutions, Enterprise And Investments Ltd. Distributeur d'eau chaude et froide doté d'un filtre pour le jour de la semaine et du sabbat et procédé associé
IL272387B1 (en) * 2020-01-30 2023-11-01 Cohen Shemon Device and method for supplying cold and hot water
US12091330B2 (en) 2022-03-17 2024-09-17 Gautham Parangusa Das Apparatus and process for removing PFAS and PFAS compounds from water

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