DE4025606A1 - Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal - Google Patents

Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal

Info

Publication number
DE4025606A1
DE4025606A1 DE19904025606 DE4025606A DE4025606A1 DE 4025606 A1 DE4025606 A1 DE 4025606A1 DE 19904025606 DE19904025606 DE 19904025606 DE 4025606 A DE4025606 A DE 4025606A DE 4025606 A1 DE4025606 A1 DE 4025606A1
Authority
DE
Germany
Prior art keywords
filter
filter element
germ
candle
water
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Withdrawn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
DE19904025606
Other languages
German (de)
Inventor
Wilhelm Menke
Wilfried Szidzik
Gerhard Hoerner
Uwe Wesemann
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.)
BERKEFELD FILTER ANLAGENBAU GM
Original Assignee
BERKEFELD FILTER ANLAGENBAU GM
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 BERKEFELD FILTER ANLAGENBAU GM filed Critical BERKEFELD FILTER ANLAGENBAU GM
Priority to DE19904025606 priority Critical patent/DE4025606A1/en
Publication of DE4025606A1 publication Critical patent/DE4025606A1/en
Withdrawn legal-status Critical Current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
    • C02F1/50—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
    • C02F1/001—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

Abstract

Combined filter element for a water treatment plant for binding CO2, raising the pH, inhibiting the growth of germs and reducing the germ content by mechanical filtration, comprising (successively in the direction of flow of the water) (a) a filter bed consisting of a granular material, pref. based on CaCO3, with the addn. of an Ag- contg. material, and (b) a filter element consisting of a fired ceramic filter candle made e.g. of kieselguhr, the filter bed and the filter candle being mounted in a single housing. The granular material in the filter bed may also contain 0.01 - 0.1 % of a Cl-releasing prod. USE/ADVANTAGE - The combined filter elements are compact, space-saving and relatively cheap to make and provide the required degree of hardening and disinfection of the water for use e.g. in individual drinking water preparation units.

Description

Die Erfindung betrifft ein kombiniertes Filterelement gemäß Oberbegriff des Patentanspruches 1.The invention relates to a combined filter element according to Preamble of claim 1.

Dieses Filterelement ist Teil einer Anlage zur Aufbereitung von Trinkwasser, insbesondere in der Einzelwasserversorgung, bei der zusätzlich dem kombinierten Filterelement noch ein weiteres Filterelement, beispielsweise eine Umkehrosmose, vorgeschaltet ist. Letztere dient dazu, aus dem angelieferten Rohwasser die gelösten Wasserinhaltsstoffe, z. B. Nitrate, herauszufiltern. Für die Einzelwasserversorgung sind diese umgekehrten Osmosefil­ ter heute verwendbar, da sie auch schon bei Druckdifferenzen von ca. 4 bar betrieben werden können und dabei von den gelös­ ten Wasserinhaltsstoffen mehr als 90% herauszufiltern in der Lage sind. Das bedeutet, daß die von der TVO zugelassenen maxi­ malen Nitratwerte von 50 mg pro Liter mit Sicherheit deutlich unterschritten werden. This filter element is part of a system for processing Drinking water, especially in the individual water supply at in addition to the combined filter element, another Filter element, for example a reverse osmosis, upstream is. The latter is used to extract the raw water supplied dissolved water ingredients, e.g. B. nitrates to filter out. These are reverse osmosis films for individual water supply ter can be used today, as it is also used for pressure differences can be operated from approx. 4 bar and thereby by the solved filter out more than 90% of the water constituents in the Location. This means that the maxi paint nitrate values of 50 mg per liter with certainty clearly be undercut.  

Die weitere Aufbereitung des Wassers erfolgt bei bisher bekann­ ten Anlagen dann nacheinander in mehreren Abschnitten und auch in mehreren nachgeschalteten Filterelementen.The further treatment of the water takes place at previously known plants then one after the other in several sections and also in several downstream filter elements.

Aufgabe der Erfindung ist es nun, für eine Wasseraufbereitungs­ anlage zur Einzelwasserversorgung eine möglichst kompakte, raum­ sparende und auch preislich angemessene Lösung zu finden und dennoch die gewünschte Wasserqualität zu erreichen.The object of the invention is now for a water treatment System for individual water supply as compact as possible, space to find a solution that is economical and also reasonably priced and to still achieve the desired water quality.

Erfindungsgemäß wird dazu die Lösung gemäß dem kennzeichnenden Teil des Anspruches 1 vorgeschlagen. Man kommt hierbei mit einem einzigen nachgeschalteten kombinierten Filterelement aus. Durch das gekörnte Material, vorzugsweise auf Basis von Calziumcarbonat, wird die CO2-Bindung und damit Aufhärtung des Wassers und pH-Wert-Anhebung erzielt, so daß sich im Wasser ein Kalk-Kohlensäure-Gleichgewicht einstellt. Das silberhaltige Material, aufgebracht auf einem bekannten innerten Träger, z. B. Bims, Kohle oder Kies, dient dazu, das Keimwachstum im Wasser zu hemmen und das nachgeschaltete Fil­ terelement, bestehend aus einer keramisch gebrannten Kerze, dient anschließend zur Entkeimung, d. h. zur weitgehenden Ent­ keimung des Wassers.According to the invention, the solution according to the characterizing part of claim 1 is proposed. You can get by with a single downstream combined filter element. The granular material, preferably based on calcium carbonate, achieves the CO 2 binding and thus the hardening of the water and the increase in pH, so that a lime-carbonic acid equilibrium is established in the water. The silver-containing material, applied to a known inner carrier, e.g. B. pumice, coal or gravel, is used to inhibit the growth of germs in the water and the downstream Fil terelement, consisting of a ceramic-fired candle, is then used for disinfection, ie for extensive Ent germination of the water.

In Fortführung des Erfindungsgedankens wird weiter vorgeschla­ gen, im gekörnten Material auch eine geringe Menge eines chlor­ abspaltenden Produktes einzubringen, vorzugsweise 0,01-0,1% der Gesamtmenge, welches bei Inbetriebnahme des kombinierten Filterelementes eine zusätzliche Desinfektion gewährleistet.Continuing the idea of the invention, it is proposed further a small amount of chlorine in the granular material releasing product, preferably 0.01-0.1% the total amount, which when the combined Filter element ensures additional disinfection.

Anhand der beigefügten Skizze sei in Figur I die Erfindung am Beispiel erläutert. Das äußere Gehäuse 1 des kombinierten Fil­ terelementes ist versehen mit einem Eintragsstutzen (2) und einem Austragsstutzen (3). With reference to the attached sketch, the invention is illustrated in FIG. The outer housing 1 of the combined Fil terelementes is provided with an entry nozzle (2) and a discharge nozzle (3).

Dem Eintragsstutzen (2) wird die Flüssigkeit beispielsweise aus einer umgekehrten Osmose zugeführt und durchströmt im unteren Teil des Filterelementes den Raum (4), der mit gekörntem Mate­ rial, vorzugsweise Calziumcarbonat und Filterwatte angefüllt ist, wobei in diesem Raum zusätzlich das silberhaltige Material auf den in der Beschreibung erwähnten innerten Trägern enthal­ ten ist. Ebenfalls in diesen Raum eingelagert ist die erwähnte geringe Menge eines chlorabspaltenden Produktes. Nach Durch­ strömen des Raumes (4), in dem die CO2 Bindung, pH-Wert-Anhe­ bung und Hemmung des Keimwachstums erfolgt, strömt das aufzube­ reitende Wasser über die Räume 5 durch die gebrannte keramische Filterkerze (6) in den Innenraum der Filterkerze (7) und gelangt von hier aus in den Austragsstutzen (3). In der Filterkerze (6) erfolgt die weitgehende Entkeimung des Wassers, so daß im In­ nenraum (7) der Filterkerze nur ein weitgehend keimfreies Was­ ser vorhanden ist und durch den Austragsstutzen (3) ausströmt.The entry port ( 2 ), the liquid is supplied, for example, from a reverse osmosis and flows in the lower part of the filter element, the room ( 4 ), which is filled with granular mate rial, preferably calcium carbonate and filter wadding, in which space the silver-containing material in addition contained within the description mentioned inner carriers. The mentioned small amount of a chlorine-releasing product is also stored in this room. After flowing through the room ( 4 ), in which the CO 2 binding, pH value increase and inhibition of germ growth takes place, the water to be treated flows through the rooms 5 through the fired ceramic filter candle ( 6 ) into the interior of the filter candle ( 7 ) and arrives from here into the discharge nozzle ( 3 ). In the filter candle ( 6 ) there is extensive disinfection of the water, so that in the interior ( 7 ) of the filter candle only a largely germ-free water is present and flows out through the discharge nozzle ( 3 ).

Claims (2)

1. Kombiniertes Filterelement für eine Wasseraufbereitungsan­ lage, nämlich zur CO2 Bindung, pH-Wert-Anhebung, Hemmung des Keimwachstums, Reduzierung des Keimgehaltes durch mechanische Filtration, dadurch gekennzeichnet, daß hinter­ einander in Fließrichtung des Wassers angeordnet sind
  • a) eine Filterschüttung, bestehend aus einem gekörnten Material, vorzugsweise auf Basis von Calziumcarbonat, mit Zusatz eines silberhaltigen Materiales und
  • b) ein Filterelement bestehend aus einer gebrannten kera­ mischen Filterkerze, z. B. aus Kieselgur, wobei Filterschüttung und Filterkerze in einem Gehäuse untergebracht sind.
1. Combined filter element for a water treatment plant, namely for CO 2 binding, raising the pH, inhibiting the growth of germs, reducing the germ content by mechanical filtration, characterized in that are arranged one behind the other in the direction of flow of the water
  • a) a filter bed consisting of a granular material, preferably based on calcium carbonate, with the addition of a silver-containing material and
  • b) a filter element consisting of a burned ceramic mixing filter candle, for. B. from diatomaceous earth, the filter bed and filter candle are housed in one housing.
2. Kombiniertes Filterelement nach Anspruch 1, dadurch gekenn­ zeichnet, daß im gekörnten Material auch eine geringe Menge eines chlorabspaltenden Produktes eingelagert ist, vorzugs­ weise ca. 0,01-0,1% der Gesamtmenge.2. Combined filter element according to claim 1, characterized records that in the granular material also a small amount a chlorine-releasing product is stored, preferably about 0.01-0.1% of the total.
DE19904025606 1990-08-13 1990-08-13 Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal Withdrawn DE4025606A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904025606 DE4025606A1 (en) 1990-08-13 1990-08-13 Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904025606 DE4025606A1 (en) 1990-08-13 1990-08-13 Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal

Publications (1)

Publication Number Publication Date
DE4025606A1 true DE4025606A1 (en) 1992-02-20

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ID=6412151

Family Applications (1)

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DE19904025606 Withdrawn DE4025606A1 (en) 1990-08-13 1990-08-13 Combined water treatment filter element - with granular filter bed contg. silver to bind carbon di:oxide and inhibit germ growth and fired ceramic filter candle for germ removal

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572757A1 (en) * 1990-11-30 1993-12-08 UNIK FILTERSYSTEM ApS Method to process sour humus containing water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113622C1 (en) * 1981-04-03 1982-12-09 Willy 7151 Affalterbach Herrmann Filter device for water removal and / or full desalination of water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113622C1 (en) * 1981-04-03 1982-12-09 Willy 7151 Affalterbach Herrmann Filter device for water removal and / or full desalination of water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Öko-Test-Magazin 3/88, S.36, 37, 44-46 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572757A1 (en) * 1990-11-30 1993-12-08 UNIK FILTERSYSTEM ApS Method to process sour humus containing water

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8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C02F 1/00

8125 Change of the main classification

Ipc: C02F 1/50

8130 Withdrawal