DE102015004915A1 - Method and system for treating water - Google Patents
Method and system for treating water Download PDFInfo
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- DE102015004915A1 DE102015004915A1 DE102015004915.1A DE102015004915A DE102015004915A1 DE 102015004915 A1 DE102015004915 A1 DE 102015004915A1 DE 102015004915 A DE102015004915 A DE 102015004915A DE 102015004915 A1 DE102015004915 A1 DE 102015004915A1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000003651 drinking water Substances 0.000 claims abstract description 26
- 235000020188 drinking water Nutrition 0.000 claims abstract description 26
- 239000012535 impurity Substances 0.000 claims abstract description 24
- 238000011282 treatment Methods 0.000 claims abstract description 24
- 208000007764 Legionnaires' Disease Diseases 0.000 claims abstract description 12
- 241000589248 Legionella Species 0.000 claims abstract description 11
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 8
- 238000011045 prefiltration Methods 0.000 claims description 8
- 239000000645 desinfectant Substances 0.000 claims description 6
- 230000009182 swimming Effects 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims 2
- 239000000460 chlorine Substances 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000005708 Sodium hypochlorite Substances 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 208000004434 Calcinosis Diseases 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- -1 however Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 208000026425 severe pneumonia Diseases 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
Die vorliegende Erfindung betrifft ein Verfahren oder ein System zur Behandlung von Wasser, insbesondere Trinkwasser, zur Entfernung von Verunreinigungen, insbesondere Legionellen mittels Zugabe eines Mittels zur Unschädlichmachung der Verunreinigungen und Leiten des Wassers durch ein Filtersystem.The present invention relates to a method or a system for the treatment of water, in particular drinking water, for the removal of impurities, in particular Legionella by adding a means for neutralizing the impurities and passing the water through a filter system.
Description
Die vorliegende Erfindung betrifft ein Verfahren und ein System zur Behandlung von Wasser, insbesondere Trinkwasser, zur Entfernung von Verunreinigungen, insbesondere Legionellen mittels Zugabe eines Mittels zur Unschädlichmachung der Verunreinigungen und Leiten des Wassers durch ein Filtersystem.The present invention relates to a method and a system for the treatment of water, in particular drinking water, for the removal of impurities, in particular Legionella by adding a means for neutralizing the impurities and passing the water through a filter system.
Trinkwasser aus öffentlichen Netzen kann, obwohl es den mikrobiologischen Bestimmungen der Trinkwasserverordnungen entspricht, trotzdem geringe Konzentrationen von Keimen aufweisen, beispielsweise Legionellen. Letztere können bei anfälligen Personen die sogenannte Legionärskrankheit, eine schwere Lungenentzündung, auslösen. Legionellen vermehren sich bei Temperaturen des Wassers zwischen 30 und 50°C, das heißt Wassertemperaturen wie sie bei Trinkwassernetzen im Wohnungsbau, öffentlichen Gebäuden, sowie Schwimmbädern auftritt.Drinking water from public networks, although it complies with the microbiological provisions of the drinking water regulations, still have low concentrations of germs, such as Legionella. The latter can cause the so-called legionnaires' disease, a severe pneumonia, in susceptible persons. Legionellae multiply at temperatures of water between 30 and 50 ° C, that is, water temperatures that occur in drinking water networks in housing construction, public buildings, and swimming pools.
Im Stand der Technik ist bekannt, in Systemen zur Bereitstellung von erwärmtem Trinkwasser Legionellenvermehrung durch Aufheizen über 65°C zu vermeiden. Dies erfordert jedoch ein regelmäßiges Aufheizen des gesamten Systems, was energieaufwändig und mit Verbrühungsgefahr verbunden ist. Auch wird hierdurch die Gefahr von Verkalkung und Korrosion erhöht.It is known in the art to avoid legionella proliferation by heating above 65 ° C in systems for providing heated drinking water. However, this requires a regular heating of the entire system, which is energy-intensive and associated with scalding. This also increases the risk of calcification and corrosion.
Desweiteren sind chemische und elektrolytische Behandlungsverfahren bekannt, so kann zur Vorbeugung von Legionellenbefall kontinuierlich Desinfektionsmittel in das Leitungsnetz eingebracht werden. Ein derartiges System wird beispielsweise in
Beim Abtöten von biologischen Verunreinigungen, insbesondere Legionellen mittels Einleitung von Desinfektionsmittel bleiben jedoch Verunreinigungen in Form von abgestorbenen Mikroorganismen im Wasser erhalten. Diese können unter Umständen nach Verbrauch des Desinfektionsmittels das Wachstum von weiteren Mikroorganismen als Nährboden beschleunigen, und werden daher typischerweise aus dem Wasser entfernt, beispielsweise durch Filter. Die bekannten Filtersysteme sind jedoch nicht optimal bezüglich Filterleistung. Bei den typischen Porengrößen der eingesetzten Filter von über 50 μm ist nicht gewährleistet, dass die Verunreinigungen ausreichend aus dem Wasser entfernt werden. Der Einsatz von Feinfiltern mit niedrigeren Porengrößen führt jedoch regelmäßig zu einem Zusetzen des Filters.When killing biological contaminants, in particular Legionella by means of introduction of disinfectant, however, impurities in the form of dead microorganisms remain in the water. These may possibly accelerate the growth of other microorganisms as a nutrient medium after consumption of the disinfectant, and are therefore typically removed from the water, for example by filters. However, the known filter systems are not optimal in terms of filter performance. With the typical pore sizes of the filter used of more than 50 microns, it is not guaranteed that the impurities are sufficiently removed from the water. However, the use of fine filters with lower pore sizes regularly leads to clogging of the filter.
Erfindungsgemäß wurde nun überraschenderweise gefunden, dass durch Einsatz eines Filtersystems, das ein Vorfilter sowie ein Feinfilter umfasst, wobei letzteres regelmäßig gespült wird, eine ausgezeichnete Reinigung des Wassers von Verunreinigungen, insbesondere mikrobiologischen Belastungen erreicht werden kann, und trotzdem ein kontinuierlicher Betrieb der Anlage möglich ist.According to the invention it has now surprisingly been found that by using a filter system comprising a pre-filter and a fine filter, the latter is rinsed regularly, an excellent cleaning of the water by impurities, in particular microbiological stresses can be achieved, and still a continuous operation of the system is possible ,
Die Erfindung betrifft daher ein Verfahren zur Behandlung von Wasser, insbesondere Trinkwasser, zur Entfernung von Verunreinigungen, insbesondere Legionellen, umfassend die Schritte der Zugabe von Mitteln zur Unschädlichmachung der Verunreinigungen, und Leiten des Wassers durch ein Filtersystem, wobei das Filtersystem ein Vorfilter sowie ein Feinfilter umfasst, wobei das Feinfilter eine Porengröße unter 1 μm aufweist und regelmäßig gespült wird. Typische Zeitintervalle der regelmäßigen Spülung sind im Bereich vom 30 Sekunden bis 12 Stunden, vorzugsweise jede Minute bis jede 60 Minuten, insbesondere alle 30 Minuten. Die Spüldauer liegt typischerweise bei 5–60 Sekunden. Gespült wird typischerweise mit dem Filtrat des Vorfilters, oder mit Frischwasser.The invention therefore relates to a process for the treatment of water, in particular drinking water, for the removal of contaminants, in particular Legionella, comprising the steps of adding agents for neutralizing the impurities, and passing the water through a filter system, the filter system being a prefilter and a fine filter wherein the fine filter has a pore size below 1 micron and is rinsed regularly. Typical time intervals of the regular rinse are in the range of 30 seconds to 12 hours, preferably every minute to every 60 minutes, especially every 30 minutes. The purging time is typically 5-60 seconds. Rinsing is typically done with the filtrate of the prefilter, or with fresh water.
Das Filtersystem umfasst ein Vorfilter, das typischerweise eine Porengröße über 10 μm aufweist, vorzugsweise 50–200 μm, insbesondere 70–100 μm, beispielsweise etwa 90 μm. Das Feinfilter des Filtersystems hat eine Porengröße von unter 1 μm, vorzugsweise von 0,02–0,05 μm, insbesondere 0,02–0,2 μm. Geeignete Vorfilter sowie Feinfilter sind im Stand der Technik bekannt und kommerziell erhältlich z. B. von LEGIO-Water GmbH, Walddorfhäslach, Deutschland (z. B. Serie LFFx oder LBFx); PB International, Zelhem, Niederlande; oder Donaldson Filtration Deutschland GmbH, Haan.The filter system comprises a pre-filter, which typically has a pore size of more than 10 μm, preferably 50-200 μm, in particular 70-100 μm, for example about 90 μm. The fine filter of the filter system has a pore size of less than 1 .mu.m, preferably from 0.02 to 0.05 .mu.m, in particular 0.02 to 0.2 microns. Suitable prefilter and fine filters are known in the art and commercially available for. From LEGIO-Water GmbH, Walddorfhäslach, Germany (eg LFFx or LBFx series); PB International, Zelhem, The Netherlands; or Donaldson Filtration Germany GmbH, Haan.
In Schritt a) des Verfahrens gemäß der vorliegenden Erfindung werden Mittel zur Unschädlichmachung von Verunreinigungen zugegeben. Bei den Mitteln handelt es sich um Aufbereitungsstoffe und Desinfektionsmitteln, wie sie im Stand der Technik zur Gewinnung, Aufbereitung und Verteilung von Trinkwasser bekannt und zugelassen sind, vorzugsweise solche Aufbereitungsstoffe gemäß der Bekanntmachung der Liste der Aufbereitungsstoffe und Desinfektionsverfahren gemäß
In einer bevorzugten Ausführungsform handelt es sich bei dem erfindungsgemäßen Verfahren um eine Behandlung von Trinkwasser im Wohnbereich, bei Schwimmbädern und/oder Kühltürmen.In a preferred embodiment, the method according to the invention is a treatment of drinking water in the living area, in swimming pools and / or cooling towers.
In einer weiteren bevorzugten Ausführungsform wird das Verfahren zur Behebung eines akuten oder kurzfristigen Auftretens der Verunreinigungen, beispielsweise akuten Auftretens von Legionellen in der Wasserversorgung im häuslichen Bereich, in Schwimmbädern und/oder Kühltürmen eingesetzt, wobei das Verfahren zeitlich begrenzt durchgeführt wird, beispielsweise 3 Tage bis 90 Tage, vorzugsweise 7 bis 30 Tage.In a further preferred embodiment, the method is used to remedy an acute or short-term occurrence of impurities, such as acute emergence of Legionella in the water supply in the home, swimming pools and / or cooling towers, the process is carried out for a limited time, for example, 3 days 90 days, preferably 7 to 30 days.
In einer bevorzugten Ausführungsform wird bei dem erfindungsgemäßen Verfahren sowohl die Konzentration an Mittel in dem Trinkwasser vor dem Verbrauchsstellen des Wassers und/oder der Verbrauch an Mitteln zur Unschädlichmachung der Verunreinigung mittels geeigneter Messvorrichtungen bestimmt, und vorzugsweise mittels Fernüberwachung, beispielsweise angeschlossenem GSM Modul per Mobilfunk oder mittels Internetanschluss über das Internet ausgelesen und überwacht, sowie gegebenenfalls geregelt.In a preferred embodiment, the method according to the invention determines both the concentration of agents in the drinking water upstream of the point of use of the water and / or the consumption of means for rendering the contaminant harmless by means of suitable measuring devices, and preferably by means of remote monitoring, for example connected GSM module by mobile radio or read out and monitored via Internet via the Internet, and possibly regulated.
Das erfindungsgemäße Verfahren eignet sich insbesondere zur Behandlung von Wasser, das in einer geeigneten Vorrichtung, beispielsweise einem Warmwasserspeicher, Boiler oder Durchlauferhitzer, erwärmt wird, und die Verunreinigungen nach dem Erwärmen unter Zugabe des Mittels zur Unschädlichmachung der Verunreinigung und unter Einsatz des erfindungsgemäßen Filtersystems entfernt werden. Vorzugsweise umfasst daher das erfindungsgemäße Verfahren nach Zugabe des Mittels in Schritt a) das Erwärmen des Wassers in einer geeigneten Vorrichtung, insbesondere einem Warmwasserspeicher, bevor das Warmwasser zu den Verbrauchsstellen geleitet wird. Typischerweise wird das Warmwasser von den Verbrauchsstellen in einer Zirkulationsleitungs zurück in den Warmwasserspeicher geführt. Das Filtersystem kann, soweit keine Zirkulationsleitung vorliegt, nach dem Warmwasserspeicher montiert sein, vorzugsweise, sofern eine Zirkulationsleitung zur Rückführung des Warmwassers vorhanden ist, wird das Filtersystem des Schritts b) des erfindungsgemäßen Verfahrens in der Rückleitung installiert. Vorzugsweise wird nach dem Erwärmen, das heißt nach dem Warmwasserspeicher, die Konzentration an Mittel ermittelt, typischerweise durch geeignete Messinstrumente, die in der Warmwasserleitung nach dem Warmwasserspeicher installiert wird. Geeignete Messinstrumente sind im Stand der Technik bekannt. Durch den Einsatz des Filtersystems in der Warmwasserrückleitung wird sichergestellt, dass auch bei geringem Warmwasserverbrauch Verunreinigungen, insbesondere mikrobieller Art wie Legionellen, zuverlässig auch über längeren Zeitraum aus dem Warmwasserspeicher entfernt bzw. ferngehalten werden. Das erfindungsgemäße Filtersystem erlaubt hierbei eine ausgezeichnete Entfernung von Verunreinigungen bei kontinuierlicher Fahrweise.The inventive method is particularly suitable for the treatment of water, which is in a suitable device, such as a hot water tank, boiler or water heater, heated, and the impurities are removed after heating with the addition of the means for neutralizing the contamination and using the filter system according to the invention , Preferably, therefore, the method according to the invention comprises, after addition of the agent in step a), the heating of the water in a suitable device, in particular a hot water tank, before the hot water is passed to the points of consumption. Typically, the hot water from the consumption points in a circulation line is fed back into the hot water tank. The filter system can, if there is no circulation line, be mounted after the hot water tank, preferably, if a circulation line for returning the hot water is present, the filter system of step b) of the inventive method is installed in the return line. Preferably, after the heating, that is, after the hot water storage, the concentration of funds is determined, typically by suitable measuring instruments, which is installed in the hot water pipe to the hot water tank. Suitable measuring instruments are known in the art. The use of the filter system in the hot water return ensures that even with low hot water consumption impurities, especially microbial species such as Legionella, reliably removed or kept away from the hot water tank for a longer period of time. The filter system according to the invention in this case allows an excellent removal of impurities in a continuous operation.
Die vorliegende Erfindung betrifft ebenfalls ein System zur Behandlung von Wasser, insbesondere Trinkwasser, zur Entfernung von Verunreinigungen, insbesondere Legionellen, welches System zur Durchführung des erfindungsgemäßen Verfahrens und den bevorzugten Ausführungen davon, wie oben beschrieben, geeignet oder vorgesehen ist. Das erfindungsgemäße System umfasst somit typischerweise geeignete Vorrichtungen zur Zugabe des Mittels gemäß Schritt a) wie oben beschrieben, sowie ein Filtersystem gemäß Schritt b) des erfindungsgemäßen Verfahrens wie oben beschrieben, sowie gegebenenfalls geeignete Anschlussmöglichkeiten an ein bestehendes Leitungssystem für Warm- und/oder Kaltwasser. Das erfindungsgemäße System kann als mobiles System ausgeführt sein, das in bestehende Leitungssysteme durch Zwischenschaltung, insbesondere an die Rückleitung des Warmwasserspeichers, integriert wird, und hierzu insbesondere zur Behandlung von Wasser bei einem akuten oder kurzfristigen Auftreten der Verunreinigungen eingesetzt werden kann.The present invention also relates to a system for the treatment of water, in particular drinking water, for the removal of impurities, in particular Legionella, which system is suitable or provided for carrying out the method according to the invention and the preferred embodiments thereof as described above. The system according to the invention thus typically comprises suitable devices for adding the agent according to step a) as described above, and a filter system according to step b) of the method according to the invention as described above, and optionally suitable connection possibilities to an existing line system for hot and / or cold water. The system according to the invention can be designed as a mobile system, which is integrated into existing piping systems by interposition, in particular to the return of the hot water tank, and this can be used in particular for the treatment of water in an acute or short-term occurrence of impurities.
In einer bevorzugten Ausführungsform wird das erfindungsgemäße Verfahren gleichzeitig zur Kaltwasser- sowie Warmwasseraufbereitung eingesetzt. Das heißt, bevorzugt wird ein erfindungsgemäße System jeweils sowohl in den Kaltwasser- bzw. Frischwasserkreislauf als auch in den Warmwasserkreislauf integriert. In dieser Ausführungsform werden somit mindestens zwei erfindungsgemäße Systeme in die Wasserversorgung, beispielsweise Trinkwasserversorgung eines Wohnhauses oder Schwimmbades, integriert, wobei am meisten bevorzugt das Mittel in Schritt a) jeweils in Rücklauf des Kalt- bzw. Warmwassers zugeführt wird, und das erfindungsgemäße Filtersystem beim Kaltwasserkreislauf nach der Zugabe des Mittels, und im Warmwasserkreislauf in der Rückleitung der Warmwasserzirkulation installiert ist.In a preferred embodiment, the inventive method is used simultaneously for cold water and hot water treatment. That is, preferably, a system according to the invention is integrated in each case in the cold water or fresh water circulation as well as in the hot water circuit. In this embodiment, at least two systems according to the invention are thus integrated into the water supply, for example drinking water supply of a residential building or swimming pool, wherein most preferably the agent in step a) is supplied in each case in return of the cold or hot water, and the filter system according to the invention in the cold water cycle after the addition of the agent, and in the hot water circuit is installed in the return line of hot water circulation.
Die Erfindung wird nachfolgend an zwei Ausführungsbeispielen näher erläutert werden. Es zeigen in schematischer Darstellung: The invention will be explained in more detail below with reference to two exemplary embodiments. In a schematic representation:
Das erfindungsgemäße System zur Warmwasserbehandlung (
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Trinkwassereinspeisungdrinking water supply
- 22
- KaltwasserverteilerCold water distribution
- 33
- Kaltwasserversorgung zum VerbraucherCold water supply to the consumer
- 44
- WarmwasserspeicherHot water storage
- 55
- Warmwasserversorgung zum VerbraucherHot water supply to the consumer
- 66
- Entnahmestellesampling point
- 77
- Rückleitung WarmwasserReturn hot water
- 7a7a
- Pumpe Rückleitung WarmwasserPump return hot water
- 88th
- Abwassersewage
- 99
- Dosierungseinrichtungmetering device
- 1010
- Dosierungseinrichtungmetering device
- 1111
- Filtersystemfilter system
- 1212
- Rückleitung FiltratReturn filtrate
- 1313
- Rückspülwasserbackwash
- 1414
- Messzellecell
- 1515
- System zur WarmwasserbehandlungSystem for hot water treatment
- 1616
- Dosierungseinrichtungmetering device
- 1717
- Filtersystemfilter system
- 1818
- Rückspülleitungbackwash
- 1919
- Filtratleitung KaltwasserFiltrate line cold water
- 2020
- System zur KaltwasserbehandlungSystem for cold water treatment
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1626034 A1 [0004] EP 1626034 A1 [0004]
Zitierte Nicht-PatentliteraturCited non-patent literature
-
§ 11 der Trinkwasserverordnung (17. Änderung; Stand November 2012) [0009]
Section 11 of the Drinking Water Ordinance (17th amendment, as of November 2012) [0009] - § 11 der Trinkwasserverordnung zur Desinfektion des Wassers [0009] § 11 of the Drinking Water Ordinance for the disinfection of water [0009]
Claims (15)
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DE102015004915.1A DE102015004915A1 (en) | 2015-04-17 | 2015-04-17 | Method and system for treating water |
DE202015009330.2U DE202015009330U1 (en) | 2015-04-17 | 2015-04-17 | System for the treatment of water |
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DE102015004915.1A DE102015004915A1 (en) | 2015-04-17 | 2015-04-17 | Method and system for treating water |
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DE102015004915A1 true DE102015004915A1 (en) | 2016-10-20 |
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DE102015004915.1A Withdrawn DE102015004915A1 (en) | 2015-04-17 | 2015-04-17 | Method and system for treating water |
DE202015009330.2U Expired - Lifetime DE202015009330U1 (en) | 2015-04-17 | 2015-04-17 | System for the treatment of water |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3121337A1 (en) * | 1981-05-29 | 1982-12-16 | Fichtel & Sachs Ag, 8720 Schweinfurt | Filter installation |
DE19949154A1 (en) * | 1999-09-25 | 2001-05-10 | Sheng I Leu | Water treatment apparatus for raising oxygen solubility in high purity drinking water comprises high-pressure pump, closed container, ozone injector, cooler, and supersonic vibrator |
EP1626034A1 (en) | 2004-08-12 | 2006-02-15 | Thomas Bauer | Process and system for water treatment |
DE102009016038A1 (en) * | 2008-04-02 | 2009-10-08 | Walter Polak | Plant and process for the treatment of drinking water |
-
2015
- 2015-04-17 DE DE102015004915.1A patent/DE102015004915A1/en not_active Withdrawn
- 2015-04-17 DE DE202015009330.2U patent/DE202015009330U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3121337A1 (en) * | 1981-05-29 | 1982-12-16 | Fichtel & Sachs Ag, 8720 Schweinfurt | Filter installation |
DE19949154A1 (en) * | 1999-09-25 | 2001-05-10 | Sheng I Leu | Water treatment apparatus for raising oxygen solubility in high purity drinking water comprises high-pressure pump, closed container, ozone injector, cooler, and supersonic vibrator |
EP1626034A1 (en) | 2004-08-12 | 2006-02-15 | Thomas Bauer | Process and system for water treatment |
DE102009016038A1 (en) * | 2008-04-02 | 2009-10-08 | Walter Polak | Plant and process for the treatment of drinking water |
Non-Patent Citations (1)
Title |
---|
§ 11 der Trinkwasserverordnung (17. Änderung; Stand November 2012) |
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