WO2010147544A1 - Procédé et dispositif de traitement d'eau par exposition à un rayonnement uv - Google Patents

Procédé et dispositif de traitement d'eau par exposition à un rayonnement uv Download PDF

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Publication number
WO2010147544A1
WO2010147544A1 PCT/SE2010/050665 SE2010050665W WO2010147544A1 WO 2010147544 A1 WO2010147544 A1 WO 2010147544A1 SE 2010050665 W SE2010050665 W SE 2010050665W WO 2010147544 A1 WO2010147544 A1 WO 2010147544A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
carbon dioxide
light
radicals
exposing
Prior art date
Application number
PCT/SE2010/050665
Other languages
English (en)
Inventor
Torkel Elgh
Original Assignee
Wallenius Water Aktiebolag
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 Wallenius Water Aktiebolag filed Critical Wallenius Water Aktiebolag
Priority to EP10789822A priority Critical patent/EP2443066A4/fr
Publication of WO2010147544A1 publication Critical patent/WO2010147544A1/fr

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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, 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
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/52—Adding ingredients
    • A23L2/54—Mixing with gases
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, 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
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, 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
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/28—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3222—Units using UV-light emitting diodes [LED]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/02—Fluid flow conditions
    • C02F2301/024—Turbulent
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
    • 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
    • C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/211—Solar-powered water purification
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

Definitions

  • the present invention relates to a purifying device for treating water, and in particular carbonated water.
  • Water is a very natural and important component for all life on the planet and it has become increasingly important to have pure, drinkable water around the globe. In fact fresh water will be one of the most important issues for the world community to handle in the future.
  • the bottled water entails high energy consumption and environmental impact due to the costs for producing the product water/ container but also the costs for transporting the bottled water from the producer to the consumer.
  • the aim of the present invention is to remedy the drawbacks of the state of the art and to provide a device for producing pure, carbonated water locally.
  • a method for treating tap water comprising means for exposing running tap water including UV generating means capable of exposing the water to UV light for creating radicals, which radicals treat the water, characterised in the introduction of carbon dioxide downstream said UV generating means, which carbon dioxide creates a scattering of said UV light for enhancing the treatment as well as carbonating said water for drinking purposes.
  • said carbon dioxide promotes the production of radicals in that oxygen in the carbon dioxide is converted to ozone by said UV light, which UV light at the same time breaks down the ozone to radicals.
  • the great advantage with the present invention is that the water flowing from the tap water faucet is treated in order to greatly improve the quality of the water, i.e. really making it drinkable directly from the tap, and also carbonated.
  • the further advantage is that the added carbon dioxide also, apart from the carbonating aspect, also acts as an enhancer of the treatment process in that it promotes the scattering of the light, thereby improving the efficiency of the treatment and also causing turbulence in the water which further adds to the improved efficiency. Furthermore, the presence of carbon dioxide provides added oxygen, which may be converted to ozone by the UV light, which ozone is broken down to radicals by the UV light. Thereby the treatment process is even more improved.
  • the present invention both provides a purified drinking water that may be carbonated, whereby the introduction of carbon dioxide has multiple functions.
  • Fig. 1 shows schematically a tap water arrangement comprising the present invention
  • Fig. 2 shows schematically a variant of the tap water arrangement of Fig. 1.
  • the device according to the present invention comprises a water treatment unit.
  • a tap water faucet 10 is mounted on a fixed surface such as a sink 12 or the like.
  • the faucet is connected to a tap water piping system 14, providing tap water to the faucet.
  • the faucet is further provided with a knob 16 for handling a valve inside the faucet, for controlling the flow of water through the faucet.
  • the present invention comprises a water treatment unit 20 arranged in the flow of the tap water, in the embodiment shown before the valve as seen in the direction of flow, even though the water treatment unit could be placed after the valve, as will become apparent from the following description.
  • the treatment unit comprises a number of UV-generating means 22 capable of generating UV in the range between 180 - 400 nm.
  • the UV generating means are capable of generating UV light of 183.7 nm and 254 nm.
  • the wavelength of 183.7 nm in particular converts the oxygen in the medium to ozone molecules.
  • the ozone molecules formed are at the same time decomposed by radiation within the above mentioned range, especially at a wavelength of 254 nm, which causes the ozone formed to break down to form atomic oxygen.
  • the UV-generating means comprise small UV- generating Light Emitting Diods (LED's) capable of generating UV light in the above range and in particular 183.7 nm and 254 nm.
  • the LED's could be arranged in a tubular housing 24 and arranged around the circumference so that the whole volume of the housing is irradiated.
  • catalysts 26 are arranged in the housing so that they are exposed to the UV-light.
  • a number of materials could be used as catalysts comprise metal and/ or metal oxide, such as noble metals, aluminium oxide, titanium oxide silicon oxide and mixtures thereof.
  • the catalytic material could cover the inner surfaces of the housing but also be arranged onto a water permeable structure such as a mesh, non-woven fibres, and the like, and placed either transversal to the direction of flow, or in the direction of flow.
  • a water permeable structure such as a mesh, non-woven fibres, and the like
  • the material of the permeable structure could be quartz glass, which increases the possibilities of spreading the UV light inside the housing.
  • the UV lamps are connected via electrical conduits 28 to a power source.
  • the power source comprises an electric generator 30 arranged in a housing part of the tap water faucet.
  • an impeller 32 is connected to the shaft of the electric generator.
  • the impeller could either be attached directly on the shaft of the generator or via a suitable transmission.
  • the impeller is placed in an impeller housing 34 in the tap water faucet, where the impeller housing is arranged in the water flow through the faucet.
  • a suitable sealing is arranged between the impeller housing and the generator housing.
  • Another embodiment of the present invention could comprise a battery pack (not shown) instead or in addition to the generator.
  • a switch is provided on the tap water faucet, preferably activated when the water is turned on, so that the power from the batteries to the lamps is switched on when the water is switched on.
  • the lamps it is of course possible to connect the lamps to the mains of the building, preferably via some suitable transformer.
  • the water tap is arranged with a connection 40 to which a cartridge of carbon dioxide 42 can be attached.
  • the connection is arranged to fit suitable size and type of cartridge.
  • the connection preferably is arranged with some type of valve 44 for turning on and off the supply of carbon dioxide.
  • the faucet knob 16 When the faucet knob 16 is turned on, the water starts to flow through the impeller housing 34, whereby the impeller 32 starts to rotate. This in turn causes the generator 30 to rotate and to deliver power to the UV-lamps 22, whereby they are lit and the treatment process as described above is started.
  • the power delivered from the generator is proportional to the flow speed, in that a low flow speed generates a low rotational speed of the generator, while a high flow generates a high rotational speed, providing more power to the lamps. This is an advantage with this embodiment because a higher flow requires more output from the lamps.
  • the valve 42 controlling the supply of carbon dioxide when the valve 42 controlling the supply of carbon dioxide is turned to open, carbon dioxide is supplied to the running water.
  • the supply of carbon dioxide is arranged upstream of the lamps.
  • the bubbles of carbon dioxide pass into the light of the UV-lamps, they create a scattering effect of the light and the ray path through the water will be more zigzag like. This increases the path in water for reaching all regions of the water volume passing through and the effective light absorption will be high.
  • the introduction of carbon dioxide bubbles also creates turbulence in the liquid which also promotes the scattering of light.
  • the UV-radiation of these bubbles will also cause a generation of ozone in that the UV-light will to some extent convert the oxygen in the water to ozone, which ozone then is broken down to radicals.
  • a very efficient purifying action is obtained by the combination of introducing carbon dioxide and the treatment by UV-radiation.

Landscapes

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

Abstract

La présente invention concerne un procédé de traitement d'eau courante, comportant les étapes consistant à exposer de l'eau courante en circulation à un rayonnement UV à l'aide d'un moyen de génération d'UV capable d'exposer l'eau à une lumière UV afin de créer des radicaux qui traitent l'eau. L'invention est caractérisée par l'introduction de bulles de dioxyde de carbone en amont dudit moyen de génération d'UV. Les bulles de dioxyde de carbone créent une dispersion de ladite lumière UV afin de renforcer le traitement, tout en assurant la carbonatation de l'eau en vue de sa consommation en tant que boisson.
PCT/SE2010/050665 2009-06-15 2010-06-15 Procédé et dispositif de traitement d'eau par exposition à un rayonnement uv WO2010147544A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10789822A EP2443066A4 (fr) 2009-06-15 2010-06-15 Procédé et dispositif de traitement d'eau par exposition à un rayonnement uv

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0950459-8 2009-06-15
SE0950459A SE534496C2 (sv) 2009-06-15 2009-06-15 Metod för behandling av kranvatten med UV-strålning

Publications (1)

Publication Number Publication Date
WO2010147544A1 true WO2010147544A1 (fr) 2010-12-23

Family

ID=43356618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2010/050665 WO2010147544A1 (fr) 2009-06-15 2010-06-15 Procédé et dispositif de traitement d'eau par exposition à un rayonnement uv

Country Status (3)

Country Link
EP (1) EP2443066A4 (fr)
SE (1) SE534496C2 (fr)
WO (1) WO2010147544A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2649012A2 (fr) * 2010-12-07 2013-10-16 Biological Illumination LLC Système et procédé de purification de fluide à del
JP2018030077A (ja) * 2016-08-23 2018-03-01 日機装株式会社 流水殺菌装置および流水殺菌方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609471A (en) * 1984-04-25 1986-09-02 Autotrol Corporation Laser disinfection of fluids enhanced by gas bubbles
DE10152357A1 (de) * 2001-05-11 2002-11-14 Linde Ag Verfahren und Vorrichtung zum Herstellen einer Flüssigkeit mit erhöhtem Sauerstoffgehalt
US20050247614A1 (en) * 2004-05-10 2005-11-10 Imi Cornelius (Uk) Limited Water treatment
WO2006083218A1 (fr) * 2005-02-03 2006-08-10 Wallenius Water Aktiebolag Procede de traitement de liquides
DE202006019269U1 (de) * 2006-11-21 2007-07-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Wasserhahn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009351B3 (de) * 2006-03-01 2007-10-25 Welltec Gmbh Vorrichtung zum Bereiten und Ausgeben von Erfrischungsgetränken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609471A (en) * 1984-04-25 1986-09-02 Autotrol Corporation Laser disinfection of fluids enhanced by gas bubbles
DE10152357A1 (de) * 2001-05-11 2002-11-14 Linde Ag Verfahren und Vorrichtung zum Herstellen einer Flüssigkeit mit erhöhtem Sauerstoffgehalt
US20050247614A1 (en) * 2004-05-10 2005-11-10 Imi Cornelius (Uk) Limited Water treatment
WO2006083218A1 (fr) * 2005-02-03 2006-08-10 Wallenius Water Aktiebolag Procede de traitement de liquides
DE202006019269U1 (de) * 2006-11-21 2007-07-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Wasserhahn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2443066A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2649012A2 (fr) * 2010-12-07 2013-10-16 Biological Illumination LLC Système et procédé de purification de fluide à del
EP2649012A4 (fr) * 2010-12-07 2014-06-11 Biolog Illumination Llc Système et procédé de purification de fluide à del
JP2018030077A (ja) * 2016-08-23 2018-03-01 日機装株式会社 流水殺菌装置および流水殺菌方法
WO2018037938A1 (fr) * 2016-08-23 2018-03-01 日機装株式会社 Dispositif de stérilisation d'eau courante et procédé de stérilisation d'eau courante

Also Published As

Publication number Publication date
SE534496C2 (sv) 2011-09-13
EP2443066A1 (fr) 2012-04-25
SE0950459A1 (sv) 2010-12-16
EP2443066A4 (fr) 2012-12-05

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