SE534496C2 - Method for treating tap water with UV radiation - Google Patents

Method for treating tap water with UV radiation Download PDF

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Publication number
SE534496C2
SE534496C2 SE0950459A SE0950459A SE534496C2 SE 534496 C2 SE534496 C2 SE 534496C2 SE 0950459 A SE0950459 A SE 0950459A SE 0950459 A SE0950459 A SE 0950459A SE 534496 C2 SE534496 C2 SE 534496C2
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Sweden
Prior art keywords
water
light
carbon dioxide
tap
radicals
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SE0950459A
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Swedish (sv)
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SE0950459A1 (en
Inventor
Torkel Elgh
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Wallenius Water Ab
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Publication date
Application filed by Wallenius Water Ab filed Critical Wallenius Water Ab
Priority to SE0950459A priority Critical patent/SE534496C2/en
Priority to EP10789822A priority patent/EP2443066A4/en
Priority to PCT/SE2010/050665 priority patent/WO2010147544A1/en
Publication of SE0950459A1 publication Critical patent/SE0950459A1/en
Publication of SE534496C2 publication Critical patent/SE534496C2/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325Irradiation devices or lamp constructions
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/52Adding ingredients
    • A23L2/54Mixing with gases
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/28Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/68Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/009Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/32Details relating to UV-irradiation devices
    • C02F2201/322Lamp arrangement
    • C02F2201/3222Units using UV-light emitting diodes [LED]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/02Fluid flow conditions
    • C02F2301/024Turbulent
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/023Reactive oxygen species, singlet oxygen, OH radical
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00Location of water treatment or water treatment device
    • C02F2307/06Mounted on or being part of a faucet, shower handle or showerhead
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/211Solar-powered water purification
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Föreliggande uppfinning avser en metod för behandling av kranvatten, innefattandeorgan för att exponera rinnande kranvatten, inkluderande UV-genererande organistånd att exponera vattnet för UV-ljus för att skapa radikaler, vilka radikalerbehandlar vattnet, kännetecknad av införandet av koldioxid uppströms nämnda UV-genererande organ, vilken koldioxid skapar en spridning av UV-ljuset för att förbättra behandlingen samt kolsyresättning av nämnda vatten för drickändamål. The present invention relates to a method of treating tap water, comprising means for exposing running tap water, including UV-generating organ capable of exposing the water to UV light to create radicals, which radically treat the water, characterized by the introduction of carbon dioxide upstream of said UV-generating means. which carbon dioxide creates a scattering of the UV light to improve the treatment and carbonation of said water for drinking purposes.

Description

25 30 534 496 typ av vattenkranar, samt den ytterligare utrustning som krävs, ganska dyr och ännu inte för varje hushåll. 25 30 534 496 type of water taps, as well as the additional equipment required, quite expensive and not yet for every household.

En ytterligare nackdel med de ovan nämnda systemen är att de kräver en bra kranvattenkvalitet då vattnet annars inte kommer att smaka gott även om det är kolsyrat. Detta begränsar användningen av dessa system till länder /regioner med rent vatten av god kvalitet.An additional disadvantage of the above-mentioned systems is that they require a good tap water quality as the water will otherwise not taste good even if it is carbonated. This limits the use of these systems to countries / regions with good quality clean water.

KORT BESKRIVNING AV UPPFINNINGEN Ändamålet med föreliggande uppfinning är att avhjälpa nackdelarna med den kända tekniken och att tillhandahålla en metod för framställning av rent, kolsyrat vatten lokalt.BRIEF DESCRIPTION OF THE INVENTION The object of the present invention is to remedy the disadvantages of the prior art and to provide a method for producing clean, carbonated water locally.

Enligt en huvudaspekt av uppfinningen kännetecknas den av en metod att behandla kranvatten, innefattande organ för att exponera rinnande kranvatten inkluderande UV-generande organ istånd att exponera vattnet med UV-ljus för att skapa radikaler, vilka radikaler behandlar vattnet, kännetecknad av införandet av koldioxid uppströms nämnda UV-genererande organ, vilken koldioxid skapar en spridning av nämnda UV- ljus för att förbättra behandlingen samt att kolsyresätta nämnda vatten for drickändamål.According to a main aspect of the invention, it is characterized by a method of treating tap water, comprising means for exposing running tap water including UV generating means capable of exposing the water to UV light to create radicals, which radicals treat the water, characterized by the introduction of carbon dioxide upstream said UV-generating means, which carbon dioxide creates a scattering of said UV light to improve the treatment and to carbonate said water for drinking purposes.

Enligt en annan aspekt av uppfinningen gynnar nämnda koldioxid prodduktionen av radikaleri det att syre i koldioxiden konverteras till ozon genom nämnda UV-ljus, vilket UV-ljus samtidigt bryter ner ozonet till radikaler. ' Fördelarna med föreliggande uppfinning ärflera. Införandet av koldioxid i vattenkranen reducerar miljö- och den ekonomiska påverkan som annars är fallet med buteljerat kolsyrat vatten. A Den stora fördelen med föreliggande uppfinning är dock att vattnet som flödar från vattenkranen behandlas för att förbättra vattenkvaliteten mycket, dvs. att verkligen göra det drickbart direkt från kranen och även kolsyrat. 10 15 20 25 30 _ Fig. 2 534 496 Den ytterligare fördelen är att den tillförda koldioxiden även, förutom aspekten med att kolsyresätta, även verkar som en förbättrare av behandlingsprocessen i det att den gynnar spridningen av ljus, vilket därmed förbättrar effektiviteten hos behandlingen och som även skapar turbulens i vattnet, vilket ytterligare gynnar den förbättrade effektiviteten. Dessutom ger närvaron av koldioxid ytterligare syre, vilket kan konverteras till ozon av UV-ljuset, vilket ozon bryts ner till radikaler av UV-ljuset.According to another aspect of the invention, said carbon dioxide promotes the production of radicals that oxygen in the carbon dioxide is converted to ozone by said UV light, which UV light simultaneously breaks down the ozone into radicals. The advantages of the present invention are several. The introduction of carbon dioxide in the water tap reduces the environmental and economic impact that is otherwise the case with bottled carbonated water. A The great advantage of the present invention is, however, that the water that flows from the water tap is treated to improve the water quality a lot, ie. to really make it drinkable directly from the tap and also carbonated. Fig. 2 534 496 The further advantage is that the added carbon dioxide also, in addition to the aspect of carbonation, also acts as an enhancer of the treatment process in that it promotes the scattering of light, which thereby improves the efficiency of the treatment and which also creates turbulence in the water, which further benefits the improved efficiency. In addition, the presence of carbon dioxide provides additional oxygen, which can be converted to ozone by the UV light, which ozone is broken down into radicals by the UV light.

Därigenom förbättras behandlingsprocessen ännu mer.This further improves the treatment process.

Således ger föreliggande uppfinning ett renat dricksvatten som kan kolsyras, varvid introduktionen av koldioxid har flera funktioner.Thus, the present invention provides a purified drinking water which can be carbonated, the introduction of carbon dioxide having its functions.

Dessa och andra aspekter på och fördelar med föreliggande uppfinning kommer att framgå av den följande detaljerade beskrivningen och från de bifogade ritningsfigurerna.These and other aspects and advantages of the present invention will become apparent from the following detailed description and from the accompanying drawings.

KORT BESKRIVNING AV RITNINGSFIGURERNA I den följande detaljerade beskrivningen av uppfinningen kommer hänvisning att göras till de bifogade ritningsfigurerna, där F ig. 1 uppfinning, och schematiskt visar ett kranvattenarrangemang som innefattar föreliggande schematiskt visar en variant på kranvattenarrangemanget enligt Fig. 1.BRIEF DESCRIPTION OF THE DRAWINGS In the following detailed description of the invention, reference will be made to the accompanying drawings, in which FIGS. 1 invention, and schematically shows a tap water arrangement comprising the present schematically shows a variant of the tap water arrangement according to Fig. 1.

DETALJERAD BESKRIVNING AV UPPFINNINGEN Anordningen enligt föreliggande uppfinning innefattar en vattenbehandlingsenhet. I utföringsformen som visas l figurerna är en vattenkran 10 monterad på ett fast underlag såsom en diskbänk 12 eller liknande. Kranen är ansluten till ett rörsystem 14 för kranvatten, vilket ger kranvatten till kranen. Kranen är vidare anordnad med ett vred 16 för hantering av en ventil inuti kranen, för att kontrollera vattenflödet genom kranen. Dessa komponenter är välkända för alla. 10 15 20 25 so, 534 496 Enligt föreliggande uppfinning innefattar denna en vattenbehandlingsenhet 20 anordnad i kranvattenflödet, iden visade utföringsformen före ventilen sett i flödesriktningen, även om vatten behandlingsenheten kan placeras efter ventilen, såsom kommer att framgå av den följande beskrivningen.DETAILED DESCRIPTION OF THE INVENTION The device of the present invention comprises a water treatment unit. In the embodiment shown in the figures, a water tap 10 is mounted on a solid base such as a sink 12 or the like. The tap is connected to a pipe system 14 for tap water, which provides tap water to the tap. The tap is further provided with a knob 16 for handling a valve inside the tap, to control the water flow through the tap. These components are well known to all. According to the present invention, it comprises a water treatment unit 20 arranged in the tap water well, the embodiment shown before the valve seen in the flow direction, although the water treatment unit can be placed after the valve, as will appear from the following description.

Behandlingsenheten innefattar ett antal UV-genererande organ 22 istànd att generera UV i området mellan 180 - 400 nm. I synnerhet är de UV-genererande organen istànd att generera UV-ljus med 183,7 och 254 nm. våglängden 183,7 nm i synnerhet konverterar syret i mediet till ozonmolekyler. Ozonmolekylerna som formas bryts samtidigt ner av strålningen inom det ovan nämnda området, i synnerhet vid en våglängd på 254 nm, vilket gör att det skapade ozonet bryts ner för att forma atomärt syre.The treatment unit comprises a number of UV generating means 22 capable of generating UV in the range between 180 - 400 nm. In particular, the UV generating means are capable of generating UV light at 183.7 and 254 nm. the wavelength 183.7 nm in particular converts the oxygen in the medium to ozone molecules. The ozone molecules that are formed are simultaneously decomposed by the radiation within the above-mentioned range, in particular at a wavelength of 254 nm, which means that the created ozone is decomposed to form atomic oxygen.

För att ha en kompakt behandlingsenheti anslutning till en vattenkran, innefattar de UV-genererande organen små UV-genererande ljusdioder (LED's) istànd att generera UV-ljus i det ovans nämnda området och i synnerhet 183,7 nm och 254 nm.In order to have a compact treatment unit connected to a water tap, the UV-generating means comprise small UV-generating light emitting diodes (LEDs) capable of generating UV light in the above-mentioned range and in particular 183.7 nm and 254 nm.

LED'erna kan vara anordnade i ett rörformat hölje 24 och anordnade runt Omkretsen så att hela volymen hos höljet bestrålas.The LEDs may be arranged in a tubular housing 24 and arranged around the perimeter so that the entire volume of the housing is irradiated.

Vidare, för att öka mängden radikaler som genereras l vätskan är katalysatorer 26 anordnade i höljet så att de exponeras för UV-ljus. Ett antal material som kan användas som katalysatorer innefattar metaller och/eller metalloxider, såsom ädelmetaller, aluminiumoxid, titanoxid, kiseloxid och blandningar av dessa.Furthermore, in order to increase the amount of radicals generated in the liquid, catalysts 26 are arranged in the casing so that they are exposed to UV light. A number of materials that can be used as catalysts include metals and / or metal oxides, such as noble metals, alumina, titanium oxide, silica, and mixtures thereof.

Det katalytiska materialet kan täcka innerytorna hos höljet men kan även anordnas pà en vattengenomsläpplig struktur såsom ett nät, icke-vävda fibrer och liknande och är placerad antingen tvärs flödesriktningen eller i flödesriktningen. Exempelvis kan materialet hos den genomsläppliga strukturen vara kvartsglas, vilket ökar möjligheterna att sprida UV-ljuset inuti höljet.The catalytic material can cover the inner surfaces of the casing but can also be arranged on a water-permeable structure such as a net, non-woven fibers and the like and is placed either across the flow direction or in the fate direction. For example, the material of the permeable structure may be quartz glass, which increases the possibilities of scattering the UV light inside the casing.

Enligt föreliggande uppfinning är UV-lamporna anslutna via elektriska ledningar 28 till en kraftkälla. Enligt ett exempel som visas innefattar kraftkällan en elektrisk generator 30 anordnad i en höljesdel hos vattenkranen. Till axeln hos den elektriska 10 15 20 25 30 534 496 generatorn är en impeller 30 ansluten. impellern kan antingen _vara anbringad direkt till axeln eller via en lämplig transmission. impellern är placerad i ett impellerhölje 34 i vattenkranen, där impellerhuset är anordnat i kranens vattenflöde. En lämplig tätning är anordnad mellan impellerhuset och generatorhuset.According to the present invention, the UV lamps are connected via electrical wires 28 to a power source. According to an example shown, the power source comprises an electric generator 30 arranged in a housing part of the water tap. An impeller 30 is connected to the shaft of the electric generator. the impeller can either be attached directly to the shaft or via a suitable transmission. the impeller is placed in an impeller housing 34 in the water tap, where the impeller housing is arranged in the water fl of the tap. A suitable seal is arranged between the impeller housing and the generator housing.

En annan utföringsform av föreliggande uppfinning kan innefatta ett batteripack (ej visat) istället eller i tillägg till generatorn. Om kraft från batterierna används för att driva lamporna är en brytare anordnad på vattenkranen, vilken företrädesvis aktiveras när vattnet vrids på så att kraften från batterierna till lamporna slås på när vattnet vrids på. Inom föreliggande uppfinning är det naturligtvis möjligt att ansluta lamporna till byggnadens elnät företrädesvis via en lämplig transformator.Another embodiment of the present invention may include a battery pack (not shown) instead or in addition to the generator. If power from the batteries is used to drive the lamps, a switch is arranged on the water tap, which is preferably activated when the water is turned on so that the power from the batteries to the lamps is turned on when the water is turned on. Within the present invention, it is of course possible to connect the lamps to the building's electrical network, preferably via a suitable transformer.

Vidare är vattenkranen enligt föreliggande uppfinning anordnad med en anslutning 40, till vilken en patron med koldioxid 42 kan anbringas. I detta avseende är anslutningen anordnad att passa ihop med lämplig storlek och typ av patron.Furthermore, the water tap according to the present invention is provided with a connection 40, to which a cartridge with carbon dioxide 42 can be mounted. In this respect, the connection is arranged to fit with the appropriate size and type of cartridge.

Anslutningen är företrädesvis anordnad med någon typ av ventil 44 för att sätta på och stänga av tillförseln av koldioxid.The connection is preferably provided with some type of valve 44 for switching on and off the supply of carbon dioxide.

När kranvredet 16 vrids på börjar vattnet att flöda genom impellerhuset 34, varvid impellern 32 börjar rotera. Detta i sin tur gör att generatorn 30 roterar och levererar ström till UV-lamporna 22, varvid de tänds och behandlingsprocessen beskriven ovan startas. Således, så snart vatten börjar flöda genom vattenkranen, behandlas vattnet som flödar genom denna. Vidare är effekten som avges från generatorn proportionell mot flödeshastigheten, i det att ett lågt flöde genererar en låg rotationshastighet hos generatorn, medan ett högt flöde genererar en hög rotationshastighet, vilket ger mer effekt till lamporna. Detta är en fördel med utföringsformen då ett högre flöde kräver mer uteffekt från lamporna.When the tap knob 16 is turned on, the water begins to flow through the impeller housing 34, whereby the impeller 32 begins to rotate. This in turn causes the generator 30 to rotate and supply power to the UV lamps 22, whereby they are turned on and the treatment process described above is started. Thus, as soon as water begins to fl through the water tap, the water flowing through it is treated. Furthermore, the power emitted from the generator is proportional to the speed of fate, in that a low fate generates a low rotational speed of the generator, while a high flow generates a high rotational speed, which gives more power to the lamps. This is an advantage of the embodiment as a higher fl fate requires more output power from the lamps.

Enligt uppfinningen, samtidigt som ventilen 42 som kontrollerar tillförseln av koldioxid öppnas, tillförs koldioxid till det rinnande vattnet. Som synes från ritningsfiguren är tillförseln av koldioxid anordnad uppströms om lamporna. 10 15 534 496 När bubbloma av koldioxid passerar in iljuset från UV-lampoma, skapar de en spridningseffekt hos ljuset och stràlbanan genom vattnet kommer att bli mer zigzag- liknande. Detta ökar vägen i vatten för att nà alla områden i vattenvolymen som den passerar genom och den effektiva ljusabsorptionen kommer att vara hög. införandet av koldioxidbubblor skapar även turbulens i vätskan, vilket även gynnar spridningen av ljus.According to the invention, at the same time as the valve 42 which controls the supply of carbon dioxide is opened, carbon dioxide is supplied to the running water. As can be seen from the drawing figure, the supply of carbon dioxide is arranged upstream of the lamps. 10 15 534 496 When the carbon dioxide bubbles pass into the light from the UV lamps, they create a scattering effect of the light and the beam path through the water will become more zigzag-like. This increases the path in water to reach all areas of the water volume through which it passes and the effective light absorption will be high. the introduction of carbon dioxide bubbles also creates turbulence in the liquid, which also favors the scattering of light.

Förutom den ljusspridande effekten som koldioxidbubblorna skapar kommer UV- strålningen på dessa bubblor även att skapa en generering av ozon i det att UV-ljuset till viss del kommer att konvertera syret i vattnet till ozon, vilket ozon sedan bryts ner till radikaler. Således erhålles en mycket effektiv reningsverkan genom kombinationen att introducera koldioxid och behandlingen med UV-strålning.In addition to the light scattering effect that the carbon dioxide bubbles create, the UV radiation on these bubbles will also create a generation of ozone in that the UV light will to some extent convert the oxygen in the water to ozone, which ozone is then broken down into radicals. Thus, a very effective cleansing effect is obtained by the combination of introducing carbon dioxide and the treatment with UV radiation.

Det skall förstås att utföringsformen som beskrivits ovan och som visas i figurerna endast skall betraktas som icke-begränsande exempel och att den kan modifieras på många sätt inom patentkravens skyddsomfàng.It is to be understood that the embodiment described above and shown in the drawings are to be considered as non-limiting examples only and that it may be modified in many ways within the scope of the claims.

Claims (1)

1. Method for treating tap Water, comprising means for eXposingrunning tap Water including UV generating means capable ofeXposing the Water to UV light for creating radicals, Whichradicals treat the Water, characterised in the introduction ofcarbon dioxide upstream said UV generating means, Whichcarbon dioxide creates a scattering of said UV light for enhancingthe treatment as Well as carbonating said Water for drinking purposes. . Method according to claim 1, Wherein said carbon dioxide promotes the production of radicals in that oxygen in the carbondioxide is converted to ozone by said UV light, Which UV light at the same time breaks down the ozone to radicals. . Method according to claim 1, Wherein the carbon dioxide is introduced as small bubbles, preferably in the region of 0,01 to 5 lTllTl. Method according to any of the preceding claims, characterised in causing a turbulence in the Water. . Device for treating Water, characterised in means for performing the steps of claim 1.
SE0950459A 2009-06-15 2009-06-15 Method for treating tap water with UV radiation SE534496C2 (en)

Priority Applications (3)

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SE0950459A SE534496C2 (en) 2009-06-15 2009-06-15 Method for treating tap water with UV radiation
EP10789822A EP2443066A4 (en) 2009-06-15 2010-06-15 Method and device for treatment of water by exposure to uv radiation
PCT/SE2010/050665 WO2010147544A1 (en) 2009-06-15 2010-06-15 Method and device for treatment of water by exposure to uv radiation

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Application Number Priority Date Filing Date Title
SE0950459A SE534496C2 (en) 2009-06-15 2009-06-15 Method for treating tap water with UV radiation

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SE0950459A1 SE0950459A1 (en) 2010-12-16
SE534496C2 true SE534496C2 (en) 2011-09-13

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US8420022B2 (en) * 2010-12-07 2013-04-16 Biological Illumination, Llc LED fluid purification system and method
JP2018030077A (en) * 2016-08-23 2018-03-01 日機装株式会社 Sterilization device of flowing water, and sterilization method of flowing water

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US4609471A (en) * 1984-04-25 1986-09-02 Autotrol Corporation Laser disinfection of fluids enhanced by gas bubbles
DE10152357A1 (en) * 2001-05-11 2002-11-14 Linde Ag Liquid with high oxygen content, e.g. for beverages, is produced by dissolving gas mixture composed mainly of carbon dioxide and ozone
US20050247614A1 (en) * 2004-05-10 2005-11-10 Imi Cornelius (Uk) Limited Water treatment
CN101137583A (en) * 2005-02-03 2008-03-05 沃伦刘斯水务股份公司 Method for treating liquids
DE102006009351B3 (en) * 2006-03-01 2007-10-25 Welltec Gmbh Device for processing and discharge of fresh water and water comprises a storage tank, a sterilization zone, a switch valve unit that can be switched between beverage discharge and feedback states, and a beverage dispensing point and pump
DE202006019269U1 (en) * 2006-11-21 2007-07-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Water tap, has generator with turbine that is arranged at water outlet and supplying electric energy to light source, where electric energy is utilized for radiating electromagnetic radiation

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WO2010147544A1 (en) 2010-12-23
EP2443066A1 (en) 2012-04-25
SE0950459A1 (en) 2010-12-16
EP2443066A4 (en) 2012-12-05

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