WO2006096041A1 - Procede de regeneration d'une cassette de filtrage a ionites utilisee dans le menage, filtre a ionites et dispositif de filtrage des nitrates contenus dans l'eau potable - Google Patents

Procede de regeneration d'une cassette de filtrage a ionites utilisee dans le menage, filtre a ionites et dispositif de filtrage des nitrates contenus dans l'eau potable Download PDF

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Publication number
WO2006096041A1
WO2006096041A1 PCT/LT2006/000003 LT2006000003W WO2006096041A1 WO 2006096041 A1 WO2006096041 A1 WO 2006096041A1 LT 2006000003 W LT2006000003 W LT 2006000003W WO 2006096041 A1 WO2006096041 A1 WO 2006096041A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
cassette
volume
filler
water
Prior art date
Application number
PCT/LT2006/000003
Other languages
English (en)
Russian (ru)
Inventor
Vytautas Pelakauskas
Original Assignee
Uzdaroji Akcine Bendrova Gerva
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 Uzdaroji Akcine Bendrova Gerva filed Critical Uzdaroji Akcine Bendrova Gerva
Publication of WO2006096041A1 publication Critical patent/WO2006096041A1/fr

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Classifications

    • 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
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • 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
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/60—Cleaning or rinsing ion-exchange beds
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • 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 the purification of water by filtration, as well as to the cleaning, regeneration and disinfection of ionic filter media.
  • the invention can be used to purify water, for example, wells, from wells and other sources of water contaminated with nitrates, iron (Fe + 2 and Fe +3 ), ammonium ions and other undesirable ions, by filtration, especially with ion exchange filters.
  • the cassette, its washing device and the filter in which this cassette is used are mutually consistent and represent a rather large and expensive kit.
  • the issue of filter disinfection in this case is not solved at all (publication of international application WO 01/24928, publ. 2001).
  • the closest is a method of updating a household ion-exchange filter cartridge, in which the filter elements are primarily treated with an aqueous solution of a chemical reagent that dissolves the particles of impurities and regenerates the filter elements. After that, the cartridge is washed with water, water is removed from the filter and 15 minutes purge with air heated to 90 ° C. Then the filter is filled with water and re-regenerated with a chemical reagent (description to author certificate. SU 1328987, publ. 1990).
  • the method uses chemical reagents. Despite the fact that they are washed with water, their residues remain in the filter material, and subsequently, when using the filter after regeneration, they fall into the water. Therefore, when filtering drinking water, this method of regeneration can be harmful to health. To implement this method is also necessary an additional device for supplying hot air, so this method for household filters is difficult to apply.
  • BRITA, KENWOOD and other filters are widely used with replaceable filter cartridges.
  • Their disadvantage is that after several weeks of operation of the filter, due to microbiological contamination, the cartridge must be replaced with a new one.
  • a filter for drinking water having a reservoir, a funnel fitted above it, into the opening of which a conical cartridge filled with filter material or sorbent is inserted.
  • the filter has a lock for the inserted filter cartridge, at the same time fixing the installation date of the cartridge (patent SU 1 801 024, claimed 1989).
  • the contamination of the cartridge is estimated only by the number of days of filtering. Neither the contamination of the filtered water nor the amount of filtered water is evaluated.
  • the cartridge of such a filter is disposable.
  • the closest known one is an ion-exchange filter for drinking water, having a reservoir, a funnel installed above it, in the hole of which a cylindrical cartridge is inserted containing a porous layer of polypropylene, a layer of fibrous ion-based filler, a layer of activated carbon, a layer of granular polymer material and a silver-containing layer for treating drinking water (Patent Application MD 20010309, publ. 2003).
  • the aim of the invention is to provide a filter for drinking water, the filter cassette of which, if contaminated, would not be discarded, but would be subjected to multiple updates.
  • the goal is achieved through the creation of a method for updating a household ion-exchange filter cartridge, an ion-exchange filter for drinking water and a device for filtering nitrates from drinking water.
  • the cartridge filler is regenerated by filtering a regenerating solution.
  • the cartridge is shaken and rinsed in water; regenerate by filtering a 10% solution of sodium chloride, and the volume of the regenerating solution is up to 20 times the volume of the cartridge; the cassette filler is additionally disinfected by filtering boiling water with a volume up to 20 times the volume of the cassette, or by boiling the cassette for up to 20 minutes, and finally, the cartridge is washed with a water volume exceeding the volume of the cassette up to 20 times, regularly repeating the update.
  • the anion exchange cassette is updated, in each case, after filtering off the amount of water corresponding to 100 to 600 volumes of cassette filler, but not less than 2 weeks after the start of cassette use. Disinfection is performed immediately after the regeneration of the filler.
  • the cation exchange cassette is updated in each case after filtering off the amount of water corresponding to about 1000 volumes of cassette filler, or every 2 weeks, or when the cassette is clogged. Disinfection is performed before or after regeneration of the filler.
  • the proposed ionite filter for implementing this method consists of a reservoir, above which a funnel is installed, having an opening for installing a cartridge, and a cartridge, hermetically inserted into the hole of the funnel.
  • the tank has brackets that support the funnel
  • the cassette is filled with an ionic filler, it has the shape of two truncated cones, and the taper of the part inserted into the funnel hole is larger than the taper of the rest of the cassette;
  • the cartridge itself is hermetically inserted into the hole of the funnel, the volume of the funnel is not less than 10 times the volume of the cartridge, and the cartridge is suitable for repeated updating in accordance with paragraphs 1 and 2 or 3.
  • the reservoir, funnel and cartridge with ion-exchange material are made of heat-resistant materials, resistant to temperatures of at least 100 ° C.
  • a volume corresponding to 0.15-0.25 of the total volume of the cartridge is left empty in the cassette, and several solid balls made of inert material, the density of which exceeds the density of the filler in 1.1-1.2 times.
  • the reservoir may optionally be equipped with a heating element.
  • a glass for measuring the amount of sodium chloride the volume of which is up to one and a half volumes of the cartridge, and, optionally, indicators for nitrates (manufactured by Merck) are supplied with the filter.
  • This invention using the stage of thermal disinfection, allows you to do without unacceptable in the home chemical disinfecting materials; in addition, there is no danger that residual disinfectants will remain in the filter.
  • the cation exchanger When the cartridge is regenerated with a 10% NaCl solution in a volume equal to 20 volumes of its filler, the cation exchanger completely returns to the Na form, and the anion exchanger to the SG form.
  • the nitrate indicator can determine the degree of contamination of the cartridge, and when the pollution exceeds the permissible norms, the cartridge should be updated.
  • the ion exchange filter cartridge can be updated many times in the home.
  • Figure 2 is a graph of the depletion of an ion exchanger filter in a specific case
  • Figure 3 is a graph of a regeneration of an ion exchanger filter cassette in a specific case
  • Figure 4 is a graph of a disinfection of an ion exchanger cassette in a specific case.
  • the proposed ion-exchange filter for drinking water contains a reservoir 1, above which a funnel 2 is installed, having an opening for the cartridge, and a cartridge sealed into the opening of the funnel.
  • Reservoir 1 has the brackets that hold the installed funnel 2, the cassette is filled with an ionic filler 6; the filled part has the form of two interconnected truncated cones.
  • the part of the cartridge 4 inserted into the hole of the funnel has a greater taper than the rest of the cartridge 4; the cartridge 4 itself is inserted hermetically into the opening 3 of the funnel 2.
  • the volume of the funnel 2 is no less than 10 times the volume of the cartridge 4, and the cartridge is suitable to be updated many times in accordance with paragraphs 1-3.
  • the tank 1, funnel 2 and cassette 3 and the ion exchanger are made of heat-resistant materials that are resistant to at least 100 ° C or, if the cassette is to be disinfected by boiling, only the cassette with the ion exchanger is made of resistant materials that are resistant to at least temperature of 100 ° ⁇ .
  • the anion exchange resin of the SG form or the cation exchange resin of the Na form can serve as an ionic filler.
  • a volume of 0.15-0.25 of the total volume of the cartridge for more free shaking and rinsing of the filler is left in the cassette.
  • the tank 1 may optionally be equipped with a heating element. (Not shown in the drawing).
  • the device contains a glass for measuring the amount of sodium chloride, the volume of which is about one and a half volumes of the cartridge.
  • the filler of his cartridge can be, for example, Purolite A 520E, a large-porous strongly basic ion-exchange resin specially designed for the removal of nitrates from drinking water. Filtered water is poured into the funnel 2. It is filtered by passing through the filler of the cartridge, where ion exchange occurs:
  • the ionite filters are depleted, that is, all SG anionite groups are replaced, and the ion exchangers no longer bind undesired nitrate ions in the water.
  • the cartridge should be updated. For this, the cartridge 4 is removed, shaken and rinsed in a separate volume of water. So settled and washed away the settled mechanical and colloidal particles.
  • the filter cartridge 4 is inserted back into the opening of the funnel for regeneration.
  • the ratio of the volumes of the funnel 2 and cassette 4 is ⁇ 10 / l.
  • the funnel 2 and cassette 4 are installed in a vessel for collecting the resulting regenerating solution, for example in tank 1, or on any vessel, the volume of which is at least 20 times the volume of the filler of the filter cartridge.
  • a regenerating solution contaminated with regeneration products (NO 3 " ) is poured out of the tank.
  • the cassette is regenerated in 20 volumes of 10% NaCl, since in conditions of an unregulated flow of the regenerating solution (when it is difficult to reduce or increase the flow), these amounts provide complete or sufficient regeneration of the filler cassettes.
  • the cartridge 4 is disinfected by filtering a volume of water at a temperature of 95-100 ° C to 20 times the volume of the cartridge or boiling it for 20 minutes.
  • the cassette update is completed by rinsing it with water.
  • Such an update of the cartridge is regularly repeated in each case, filtering out a volume of water comprising 100-600 volumes of cartridge filler, but not less than 2 weeks after the cartridge is started to use, optimally every week. Updating can be done multiple times.
  • the ionite filters are depleted, that is, all Na cationite groups are replaced, and the ion exchangers no longer bind undesired cations in the water.
  • the cassette should be updated.
  • the cartridge 4 is removed, shaken and rinsed in a separate volume of water. So settled and washed away the settled mechanical and colloidal particles.
  • Cassette 4 is inserted back into the opening of the funnel for regeneration.
  • the volume ratio of the funnel 2 and cassette 4 is -10/1.
  • a funnel 2 and a cartridge 4 are installed in a vessel for collecting the resulting regenerating solution, for example, in a tank 1, or in any vessel, the volume of which is not less than 20 times the volume of the filler of the filter cartridge.
  • a regenerating 10% solution of NaCl (total volume of about 20 volumes of the cartridge) is poured into the funnel in 2 portions, which flows by gravity through the filler of the cartridge and collects by gravity without additional pressure reservoir. During the regeneration of the cartridge filler, its Na form is restored:
  • a regenerating solution contaminated with regeneration products (Fe +3 ) is poured out of the tank.
  • the cartridge is regenerated with volumes of 10% NaCl corresponding to a 20-fold volume of the cartridge, because in conditions of an unregulated flow of the regenerating solution (when it is difficult to reduce or increase the flow), it is precisely these amounts that provide complete or sufficient regeneration of the filter.
  • the cartridge is disinfected by filtering through it a volume of water at a temperature of 95-100 ° C up to 20 times the volume of the cartridge or boiling for up to 20 minutes. In this case, it is possible to disinfect before regeneration of the cationic filler of the cartridge. In all cases, the cartridge update is completed by rinsing it with water.
  • This update of the cartridge is regularly repeated, in each case, having filtered out the water volume of about 1000 volumes of the cartridge filler, but not less than 2 weeks after the cartridge is started to use, optimally every week. Updating can be done multiple times.
  • Example 1 Update Anionic Filler Cartridges 100 l of natural water contaminated with nitrates (107 mg NO 3 / l) was passed through a 150 ml filter cartridge filled with nitrate selective anion exchange resin A 520E.
  • the graph of Figure 4 shows the disinfection data, where the X axis denotes the time the filter was used, in days; Y axis - the number of bacteria in filtered water, units / ml.
  • the updated cartridge after washing it with a volume of water corresponding to 20 volumes of the cartridge, is again suitable for intended use.
  • the experiments showed that the properties of the cassette filler are perfectly restored, updating it at least 25 times.
  • the cassette remains suitable for purification of drinking, for example, well water, and after 50 one-time updates - restrictions are associated only with the terms of use of the filler, defined by the manufacturer, and the heat resistance of the cassette body.
  • the proposed method for updating a household filter cartridge, an ion-exchange filter for drinking water and a device for filtering nitrates from drinking water differs in that according to the invention, when updating the cartridge using the stage of thermal disinfection, it is possible to avoid the use of unacceptable disinfecting materials in everyday life residues of such substances in the filler cartridge.
  • an ion-exchange filter for drinking water and a device for filtering nitrates from drinking water provides a sufficient restoration of the properties of the cassette and is notable for its simplicity and low cost due to the fact that there are enough improvised means for refurbishing the ion-cassette - a vessel for boiling water and cups of NaCl. Updating the ion exchanger for the filter can be repeated many times.
  • the consumer In the case of water contamination with nitrates, the consumer, by measuring the amount of nitrates with an indicator, can first of all provide the desired quality of water, and secondly, having an ionic cassette, the consumer can repeatedly update it, there is no need to buy a new one, you do not need to dispose of once used.
  • an ion-exchange filter for drinking water and devices for filtering nitrates from drinking water are especially effective in rural areas of residence.

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  • 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

Le procédé de régénération d'une cassette de filtrage à ionites utilisée dans le ménage et le filtre à ionites et le dispositif de filtrage des nitrates contenus dans l'eau potable se rapportent au nettoyage de l'eau par filtrage ainsi qu'au nettoyage, à la régénération et à la désinfection des charges d'ionites. Dans ce procédé de régénération d'une cassette de filtrage à ionites utilisée dans le ménage, la charge d'ionites de la cassette est régénérée par le filtrage d'une solution 10 % de sel de cuisine, la désinfection par l'eau bouillante et le lavage à l'eau, après quoi la régénération est répétée au moins une fois toutes les deux semaines. Le filtre à ionites pour eau potable est constitué d'un réservoir avec des supports sur lesquels est monté un entonnoir comportant un orifice destiné à accueillir une cassette. La cassette et la charge d'ionites, qui n'occupe pas tout le volume de la cassette, sont faites de matériaux résistant à la chaleur qui résistent à une température d'au moins 100 °C. La charge d'ionites comporte plusieurs billes solides fabriquées d'un matériau inerte. Le réservoir peut être équipé d'un élément chauffant. Le dispositif pour filtrer l'eau des nitrates est constitué du filtre mentionné plus haut, d'une coupe de mesure de la quantité de sel et d'un indicateur de nitrates (en option).
PCT/LT2006/000003 2005-03-09 2006-02-22 Procede de regeneration d'une cassette de filtrage a ionites utilisee dans le menage, filtre a ionites et dispositif de filtrage des nitrates contenus dans l'eau potable WO2006096041A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2005024A LT5288B (lt) 2005-03-09 2005-03-09 Buitinės jonitinės filtravimo kasetės atnaujinimobūdas, geriamo vandens jonitinis filtras ir geriamo vandens filtravimo nuo nitratų priemonė
LT2005024 2005-03-09

Publications (1)

Publication Number Publication Date
WO2006096041A1 true WO2006096041A1 (fr) 2006-09-14

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PCT/LT2006/000003 WO2006096041A1 (fr) 2005-03-09 2006-02-22 Procede de regeneration d'une cassette de filtrage a ionites utilisee dans le menage, filtre a ionites et dispositif de filtrage des nitrates contenus dans l'eau potable

Country Status (3)

Country Link
LT (1) LT5288B (fr)
LV (1) LV13626B (fr)
WO (1) WO2006096041A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498987A (en) * 2012-02-02 2013-08-07 Charles Joseph Williamson Filter cartridge regenerator

Citations (7)

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Publication number Priority date Publication date Assignee Title
SU716577A1 (ru) * 1974-09-18 1980-02-25 Московское Отделение Центрального Научно-Исследовательского И Проектно-Конструкторского Котлотурбинного Института Им.И.И.Ползунова Способ противоточной регенерации ионитового фильтра
SU806110A1 (ru) * 1978-07-31 1981-02-23 Ruzhinskij Vladimir N Установка дл регенерации ионитов
SU998372A1 (ru) * 1980-09-02 1983-02-23 Азербайджанский Инженерно-Строительный Институт Способ обработки воды
SU1386579A1 (ru) * 1984-11-20 1988-04-07 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения Способ регенерации ионита в противоточном фильтре и устройство дл его осуществлени
US4895648A (en) * 1988-04-30 1990-01-23 Brita Wasser-Filter-Systeme Gmbh Filter cover for a purification insert in a water treatment device with a hollow tube
DE4113860A1 (de) * 1991-04-27 1992-10-29 Aqua Star Gmbh Waterfilter Dev Vorrichtung zum reinigen einer fluessigkeit
RU7892U1 (ru) * 1997-12-30 1998-10-16 Закрытое акционерное общество "АКВАФОР" Фильтрующий модуль и фильтр для очистки жидкости

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CH619871A5 (en) 1977-01-31 1980-10-31 Filtro Sa Plant for disinfecting ion exchangers
CS240900B1 (en) 1983-03-29 1986-03-13 Vaclav Michek Regeneration method of ionex filters
SU1328987A1 (ru) 1985-10-29 1990-07-23 Предприятие П/Я А-1297 Способ регенерации фильтрующих элементов намывного фильтра
CH675715A5 (fr) 1988-10-21 1990-10-31 Asea Brown Boveri
DE4200253A1 (de) 1992-01-08 1993-07-15 Ernst Georg Graetzer Wasserfiltrationsgeraet
JP2003511220A (ja) 1999-10-05 2003-03-25 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ イオン交換カートリッジの再生装置
RU2149685C1 (ru) 1999-11-26 2000-05-27 Общество С Ограниченной Ответственностью "Объединение Иреа-Пензмаш" Способ противоточной регенерации ионитов
MD20010309A (ro) 2001-09-18 2003-05-31 Юрий ФРОЛОВ Procedeu şi dispozitiv de epurare şi dezinfectare a apei potabile
DE60212716T2 (de) 2002-03-01 2007-06-28 Vattenfall Ab Entfernung von nitrat

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SU716577A1 (ru) * 1974-09-18 1980-02-25 Московское Отделение Центрального Научно-Исследовательского И Проектно-Конструкторского Котлотурбинного Института Им.И.И.Ползунова Способ противоточной регенерации ионитового фильтра
SU806110A1 (ru) * 1978-07-31 1981-02-23 Ruzhinskij Vladimir N Установка дл регенерации ионитов
SU998372A1 (ru) * 1980-09-02 1983-02-23 Азербайджанский Инженерно-Строительный Институт Способ обработки воды
SU1386579A1 (ru) * 1984-11-20 1988-04-07 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения Способ регенерации ионита в противоточном фильтре и устройство дл его осуществлени
US4895648A (en) * 1988-04-30 1990-01-23 Brita Wasser-Filter-Systeme Gmbh Filter cover for a purification insert in a water treatment device with a hollow tube
DE4113860A1 (de) * 1991-04-27 1992-10-29 Aqua Star Gmbh Waterfilter Dev Vorrichtung zum reinigen einer fluessigkeit
RU7892U1 (ru) * 1997-12-30 1998-10-16 Закрытое акционерное общество "АКВАФОР" Фильтрующий модуль и фильтр для очистки жидкости

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498987A (en) * 2012-02-02 2013-08-07 Charles Joseph Williamson Filter cartridge regenerator

Also Published As

Publication number Publication date
LV13626B (en) 2008-01-20
LT2005024A (en) 2005-09-26
LT5288B (lt) 2005-11-25

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