EP2836466A1 - Cartouche de traitement d'eau potable et procédé de traitement d'eau potable - Google Patents

Cartouche de traitement d'eau potable et procédé de traitement d'eau potable

Info

Publication number
EP2836466A1
EP2836466A1 EP13715674.1A EP13715674A EP2836466A1 EP 2836466 A1 EP2836466 A1 EP 2836466A1 EP 13715674 A EP13715674 A EP 13715674A EP 2836466 A1 EP2836466 A1 EP 2836466A1
Authority
EP
European Patent Office
Prior art keywords
ion exchange
exchange material
cartridge
drinking water
ions
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Withdrawn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
EP13715674.1A
Other languages
German (de)
English (en)
Inventor
Jürgen JOHANN
Monique Bissen
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.)
BWT Water and More GmbH
Original Assignee
BWT Water and More 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 BWT Water and More GmbH filed Critical BWT Water and More GmbH
Publication of EP2836466A1 publication Critical patent/EP2836466A1/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Withdrawn legal-status Critical Current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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/026—Column or bed processes using columns or beds of different ion exchange materials in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/05—Processes using organic exchangers in the strongly acidic form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/07—Processes using organic exchangers in the weakly acidic form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/012—Ion-exchange processes in general; Apparatus therefor using portable ion-exchange apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/022—Column or bed processes characterised by the construction of the column or container
    • B01J47/024—Column or bed processes characterised by the construction of the column or container where the ion-exchangers are in a removable cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/04—Mixed-bed processes
    • 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • 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
    • 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
    • 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
    • C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices

Definitions

  • the invention relates to a cartridge for
  • the cartridge is intended in particular for a gravity-driven water balance filter or as a disposable cartridge for insertion into the supply line of a device for beverage preparation. Furthermore, the invention relates to a process for the treatment of drinking water.
  • Drinking water treatment are known. These are, on the one hand, cartridges that are gravity-driven
  • Water filter systems especially for household purposes, are used.
  • the cartridge sits in one
  • Automata for the preparation of hot drinks such as coffee or tea cartridges are known, which are either used in a device or have ports to be interposed in a drinking water pipe.
  • replaceable cartridges are usually mainly used to increase the water hardness, especially the carbonate hardness of the drinking water
  • Ion exchange material usually with a weakly acidic resin, which is arranged as granules in a chamber provided.
  • the use of such cartridges is intended above all to improve the taste of hot drinks, in particular the streaking of tea which is typical for hard water can be reduced.
  • the cartridges are usually designed as a disposable system, so are thrown away after the intended use several times or fed as a deposit system for recycling.
  • Ion exchange material comprises, some with
  • the invention is based on the object to further improve known cartridges for drinking water treatment.
  • alkaline earth ions such as magnesium
  • the object of the invention is already achieved by a cartridge for drinking water treatment and by a method for the treatment of drinking water according to one of the independent claims.
  • the invention relates to a cartridge for
  • the invention relates to a cartridge for a gravity-driven water balance filter, So a system in which the cartridge is inserted into a funnel into which the water is poured.
  • Such a cartridge usually comprises a housing with an inlet and an outlet.
  • Inlet and outlet are often designed as slots or lattice structure.
  • the invention relates to cartridges for use in apparatus for preparing beverages. It can the
  • Cartridge in the device for example, in the outlet of a water tank or in the inlet of the device.
  • devices for the preparation of hot drinks such as coffee or tea
  • devices for the preparation of cold drinks In the latter devices, sweeteners or sugars are often added to the water
  • the cartridge comprises an ion exchange material, which is in particular formed as granules.
  • a first part of the ion exchange material is with alkali or
  • Alkaline earth ions in particular loaded with magnesium ions and a second part of the ion exchange material is loaded with hydrogen ions.
  • a nonwoven may also be used as the ion exchanger material. Weakly acidic and strongly acidic ion exchange material mixed in a chamber of the cartridge. According to the invention, one of the two parts of the
  • the inventor has found that the simultaneous use of strongly acidic and weakly acidic
  • Ion exchange materials makes it possible in a very simple manner, the ion exchange material such
  • Drinking water can be adjusted in terms of pH and composition.
  • the weakly acidic ion exchanger material at least in the delivery state predominantly loaded with other ions than the strongly acidic ion exchange material.
  • Alkaline earth ions leads to an improved selectivity with respect to these ions and to a faster release especially of alkaline earth ions, such as magnesium, since the strongly acidic ion exchanger exchanges these almost independently of the pH value. Ion exchange processes are
  • treated water for example, in view of the concentration of magnesium ions, varies and depending on the water used may be outside a desired range.
  • Ion exchange material which is at least partially loaded with alkali or alkaline earth metal ions
  • Ion exchange material achieves that the water hardness, in particular the carbonate hardness, is reduced without the water being undesirably strongly acidified. This is done in particular by the fact that on the alkali or
  • Alkaline earth ions of the strongly acidic part is created a sufficient buffer.
  • Another advantage is that, as in a preferred embodiment of the invention
  • a portion of the ion exchange material predominantly, preferably at least 90% with an ionic species, in particular with hydrogen ions to load.
  • an ion exchange material in particular a weakly acidic ion exchange material having two types of ions, such as magnesium and hydrogen ions, can be dispensed with.
  • weakly acidic ion exchange material is
  • a cationic ion exchange material having a carboxyl group is used.
  • Such synthetic resin ion exchangers are for example sold under the trade names Lewatit ®, or Amberlite ®.
  • the strongly acidic ion exchange material is preferably a cation exchange material having sulfonic acid groups.
  • the strongly acidic part of the ion exchange material is predominantly charged with hydrogen ions, it is also possible in a simple manner to acidify the water, in particular to a pH of less than 3,
  • Soft drinks containing sweeteners or sugars in addition to flavors are provided.
  • the strongly acidic portion of the ion exchange material is at least 10%, preferably at least 60% and more preferably at least 90% of its capacity with alkali or
  • the strongly acidic part is predominantly with
  • the determination of the part of the capacity with which the ion exchange material with a according to DIN 54403 from April 2009. According to the procedure of this standard, the total capacity of the ion exchange material is first determined. It is different, depending on whether it is a strongly acidic or weakly acidic ion exchanger. Weak acid
  • Ion exchangers are first in the
  • Capacity can be determined to what proportion of
  • the strongly acidic ion exchange material is at least 30%
  • Ion exchange material as a mixture of granules, with which the chamber of the cartridge is filled. So it is possible, a commercial cartridge,
  • Water balance filter to provide a granular mixture with the functionality shown above in a particularly simple manner, without the resin used must be consuming conditioned with two types of ions.
  • the invention further relates to a method for
  • the drinking water is passed over an ion exchange material, which is a mixture of a strongly acidic
  • Ion exchange material comprises. One of the
  • Ion exchange materials is at least partially, preferably predominantly with alkali or with
  • the strongly acidic portion of the ion exchange material is predominantly charged with hydrogen ions and the water is acidified to a pH of less than 3, preferably less than 2.7, so that it can be used in particular for soft drinks.
  • the water can be enriched with magnesium.
  • the weakly acidic portion of the ion exchange material is predominantly charged with hydrogen ions.
  • the strongly acidic ion-exchange material is loaded with alkali metal or alkaline earth metal ions ⁇ , in particular with magnesium ions whereby the water is enriched with these ions.
  • the pH of the water can be so
  • Fig. 1 shows a sectional view of a cartridge 1 for a gravity-driven water balance filter, such as this can be used in a funnel (not shown).
  • water to be treated passes through an inlet 3 into a chamber 2 which is filled with an ion exchange material 5.
  • the ion exchange material 5 is present as granules.
  • the cartridge bottom is not open, but the water leaves after one
  • Cartridges which have no flow reversal, in which therefore in particular provided with openings cartridge bottom serves as an outlet (not
  • the granules 5 consists in this embodiment of a mixture of a strongly acidic
  • Ion exchange material which is loaded in the delivery state predominantly with magnesium and a weakly acidic ion exchange material, which in
  • Delivery state is mainly loaded with hydrogen.
  • the drinking water to be treated can be enriched with magnesium ions.
  • Next is the acidification of the
  • FIG. 2 shows an embodiment of a cartridge 10, which is provided for connection to a drinking water line, in particular to the line of a device for
  • the cartridge 10 has a housing 13 with a connection 11, via which water flows into the housing 13 of the cartridge 1. Via the connection 12, the treated drinking water leaves the cartridge and can be supplied for further use.
  • the path of the water is again marked with arrows.
  • the port 11 of the inlet is connected to a downpipe 16 through which the water to be treated is guided into the bottom of the housing 13 of the cartridge 10.
  • the interior of the cartridge 11 is with a
  • Ion exchange material 5 filled which consists of a mixture of a magnesium-loaded granules of a strongly acidic ion exchange material and a granulate 15 of a weakly acidic ion exchange material, which in the delivery state predominantly in the
  • the invention makes it possible to provide a cartridge, which in a very simple manner with respect to the
  • desired properties of the treated drinking water is customizable.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (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)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

L'invention concerne une cartouche (1) de traitement d'eau potable, contenant un mélange d'un matériau échangeur d'ions (5) qui est présent en partie sous forme de matériau échangeur d'ions fortement acide et en partie sous forme de matériau échangeur d'ions faiblement acide, l'un des matériaux étant chargé d'ions de métaux alcalins ou alcalinoterreux.
EP13715674.1A 2012-04-12 2013-04-09 Cartouche de traitement d'eau potable et procédé de traitement d'eau potable Withdrawn EP2836466A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012007150A DE102012007150A1 (de) 2012-04-12 2012-04-12 Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser
PCT/EP2013/057397 WO2013153068A1 (fr) 2012-04-12 2013-04-09 Cartouche de traitement d'eau potable et procédé de traitement d'eau potable

Publications (1)

Publication Number Publication Date
EP2836466A1 true EP2836466A1 (fr) 2015-02-18

Family

ID=48087574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13715674.1A Withdrawn EP2836466A1 (fr) 2012-04-12 2013-04-09 Cartouche de traitement d'eau potable et procédé de traitement d'eau potable

Country Status (4)

Country Link
US (1) US10118841B2 (fr)
EP (1) EP2836466A1 (fr)
DE (1) DE102012007150A1 (fr)
WO (1) WO2013153068A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012007150A1 (de) 2012-04-12 2013-10-17 Bwt Water+More Gmbh Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser
DE102012007149A1 (de) 2012-04-12 2013-10-17 Bwt Water+More Gmbh Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser
US12005408B1 (en) 2023-04-14 2024-06-11 Sharkninja Operating Llc Mixing funnel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080230451A1 (en) * 2005-03-07 2008-09-25 Koninklijke Philips Electronics N.V. Ion Exchange Cartridge

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Also Published As

Publication number Publication date
US10118841B2 (en) 2018-11-06
WO2013153068A1 (fr) 2013-10-17
DE102012007150A1 (de) 2013-10-17
US20150060366A1 (en) 2015-03-05

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