WO2006108600A1 - Device for reducing germs in preferably optically transparent liquids by using ultrasound and ultraviolet irradiation - Google Patents
Device for reducing germs in preferably optically transparent liquids by using ultrasound and ultraviolet irradiation Download PDFInfo
- Publication number
- WO2006108600A1 WO2006108600A1 PCT/EP2006/003280 EP2006003280W WO2006108600A1 WO 2006108600 A1 WO2006108600 A1 WO 2006108600A1 EP 2006003280 W EP2006003280 W EP 2006003280W WO 2006108600 A1 WO2006108600 A1 WO 2006108600A1
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- Prior art keywords
- housing
- cavity
- liquid
- mechanical filter
- cylinder
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 74
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 22
- 244000052616 bacterial pathogen Species 0.000 title claims abstract description 7
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract 3
- 238000007872 degassing Methods 0.000 claims description 7
- 238000004040 coloring Methods 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- -1 cyclic amino acids Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 150000000032 germines Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 102000034238 globular proteins Human genes 0.000 description 1
- 108091005896 globular proteins Proteins 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013160 medical therapy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Classifications
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- 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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/025—Ultrasonics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- 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
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
-
- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
-
- 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
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
-
- 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
- C02F2201/3227—Units with two or more lamps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Definitions
- the present invention relates to a device for reducing germs in, preferably optically transparent, liquids.
- Germs such as viruses, fungi and bacteria, in water used as drinking water or as a component of aqueous solutions in the context of, for example, human medical therapies can lead to diseases or make it impossible to use the water for the particular purpose , Therefore, the sterilization of liquids is an important task.
- Conventional sterilization methods use chemicals, such as chlorine. This is associated with the use or formation of very aggressive and in turn harmful substances, such as ozone.
- the invention is therefore based on the object to provide a health-friendly disinfection of liquids.
- a device for reducing germs in, preferably optically transparent, liquids comprising: a housing or a cavity with at least one liquid inlet and at least one liquid outlet for a passage of liquid, at least one UV light source in the housing or Cavity, at least one ultrasonic source in the housing or A cavity, and a first mechanical filter device having an ultrasonic treatment area, in which the ultrasonic source (s) for acting on a liquid flowing through the housing and the cavity (s) is / are arranged, and a UV Treatment area separates, in which the UV light source (s) is / are arranged.
- the information that at least one UV light source and at least one ultrasound source is arranged in the housing or the cavity should also include the cases in which the UV light source or ultrasound source in the wall of the housing or cavity arranged or the UV light or the ultrasound is coupled from the outside into the housing or the cavity.
- the first mechanical filter device is preceded by at least one second mechanical filter device in the housing or cavity in the flow direction.
- At least one ultrasonic source is provided in the housing, which is arranged such that it irradiates the second mechanical filter device or the other mechanical filter devices, preferably from one direction in the flow direction, with ultrasound.
- a turbidity and / or coloring measuring device connected to the flow measuring and control device is provided for measuring the turbidity and / or coloring of the liquid in the region of the liquid inlet of the housing or cavity and configuring the flow metering and regulating means to perform automatic flow control in response to the turbidity and / or staining measurements obtained from the turbidity and / or stain measuring means.
- the measurement of the turbidity and / or coloring device results in a high turbidity and / or coloration of the liquid in the region of the liquid feed, it can be ensured by means of the flow measuring and control device that by appropriate extension of the residence time of the liquid in the housing or Cavity, by reducing the flow rate, exposes the liquid to be sterilized to ultrasound and UV light for longer. As a result, an optimal efficiency of the device can be achieved.
- the or at least one ultrasonic source is provided in the region of the liquid drain in the housing or cavity.
- the or at least one ultrasound source has a power of more than 1 watt / cm 2 .
- the frequency of the or at least one ultrasonic source is greater than 18 IcHz.
- a degassing device is provided in the region of the liquid feed.
- the degassing device increases the effect of the ultrasound. Nozzles produce a pressure drop in a housing and a strong local increase in flow velocity. The resulting pressure drop degasses the liquid, as a pressure drop is generated to atmospheric pressure. This degassing is easily detected by liquid sampling and gas analysis before and after entry into the system. A direct relationship between degasification and efficiency for the production of pure liquids in the system is determined.
- at least one magnetic field induction device is provided for inducing a magnetic field in the ultrasonic treatment region.
- an air supply device is provided in the region of the liquid outlet of the housing or the cavity for supplying air to the liquid. This serves to compensate for degassing of the liquid in the housing or cavity.
- the wall of the housing or cavity made of pressure-resistant plastic or metal.
- the housing or cavity has the shape of a cylinder and is closed except for the liquid inlet and the liquid outlet.
- the or each UV light source is designed rod-shaped and extends parallel to the longitudinal axis of the cylinder.
- the liquid inlet of the housing or cavity is provided at a longitudinal end of the cylinder and the liquid outlet of the housing or cavity is provided at the other longitudinal end of the cylinder.
- the first mechanical filter device or at least one further mechanical filter device comprises a basket-shaped filter which is coaxially surrounded by the cylinder.
- the basket-shaped filter can be removed from the housing or cavity.
- the second mechanical filter device comprises a disc-shaped filter which extends at right angles to the longitudinal axis of the cylinder.
- the disc-shaped filter can also be removed from the housing or cavity.
- the invention is based on the surprising finding that both ultrasound and UV light are applied to the liquid by the use of ultrasound and UV light and, moreover, in a respective ultrasound treatment region or UV treatment region which are separated by a first mechanical filter device to be effective.
- ultrasound kills ultrasound as the main cause of mechanical cell disruption.
- the strong pressure and temperature changes induce the polymerization reactions inside the cell, which lead to the degradation of globular proteins. These are split into their subunit, whereby first their quaternary structure is destroyed. In this context, apart from the separation of low molecular weight peptides, the breakdown of cyclic amino acids has also been observed.
- the suspended particles resulting from the ultrasonic killing are prevented from passing into the UV treatment area by the first mechanical filter device.
- the UV light from the UV light source (s) can penetrate deeper into the liquid in the UV treatment area.
- The, in particular short-wave, UV light is absorbed in substances, such as DNA, in the liquid.
- the absorbed UV light energy is sufficient to effect photochemical conversion.
- a necessary for the division of DNA information disclosure is omitted.
- the wavelength of the UV light is typically in a range from 170 to 400 nanometers, preferably at 254 or 200 nanometers for vacuum UVC lamps.
- the device is particularly suitable for a flow of more than 10 liters per
- the device according to the invention has a particularly high efficiency. It can be used anywhere where the number of germs in liquids should be reduced. It can also be reached from heavily contaminated water, a water with drinking water quality.
- the device can operate at different flow rates and thus each achieve an optimal efficiency of sterilization.
- the device can be used as a compact system as a mobile variant or within an existing fluid conduit system. Exactly dosed irradiation with UV light and precisely metered irradiation with ultrasound can achieve sterilization with minimal energy consumption.
- the device eliminates both bacteria and viruses and mold cultures in contaminated fluids. Sterilized water exiting at the liquid outlet is 100% drinkable, without further chemical additives.
- Figure 1 is a vertical sectional view of a device for reducing
- FIG. 1 is a detail view of a modified liquid inlet.
- the device 10 shown in Figure 1 comprises a housing 12 having the shape of a cylinder which is closed at its upper longitudinal end by a cover 14 and at its lower longitudinal end by a cover 16.
- the lower lid 16 has a liquid inlet 18, not shown in detail
- the upper lid 14 has a liquid outlet 20, not shown in detail.
- three rod-shaped UV light sources 22, 24, 26 are arranged with an offset of 120 degrees to each other about the longitudinal axis 28 of the housing 12.
- the UV light sources 22, 24, 26 extend parallel to the longitudinal axis 28 from the upper lid 14 into the housing 12.
- the three UV light sources 22, 24, 26 are surrounded by their lower ends over part of their length towards the upper lid 14 by a first filter means comprising a basket-shaped filter 30 which is surrounded by the housing 12 coaxially.
- the basket-shaped filter 30 is permeable only over a lower portion and surrounds the three UV light sources 22, 24 and 26 not in their upper lid 14 adjacent area, so that over the liquid inlet 18 into the housing 12 entering liquid through the basket-shaped filter 30th can get to the liquid outlet 20.
- each three ultrasonic sources are arranged with an offset of 120 degrees to each other about the longitudinal axis 28 of the housing 12, of which, however, only two, namely 38 and 40, 42 and 44 and 46 and 48 are shown.
- Said ultrasonic sources are arranged in the cylinder wall 50 of the housing 12 so as to irradiate the permeable part of the cylinder wall 52 of the filter 30 in the radial direction from the outside.
- the liquid flowing in the ultrasonic treatment area 56 separated by the filter 30 from the UV treatment area 54 is subjected to ultrasound and, on the other hand, the filter 30 is cleaned of the resulting suspended particles.
- the suspended particles removed from the filter 30 accumulate in the areas indicated by 58 and 60 and can later be removed in a flushing operation.
- the ultrasound also causes a homogeneous liquid structure.
- the distance between the filter 30 and a respective UV light source 22, 26, 28 is in the range of 1 cm.
- the filter 30 is preceded in the flow direction by a second filter device comprising a disc-shaped filter 62.
- the disc-shaped filter 62 extends transversely to the longitudinal axis 28 of the housing 12. It is permeable in its central region 64.
- a plurality of ultrasonic sources in the lower lid 16 are provided a plurality of ultrasonic sources, four of which are designated by the reference numerals 66, 68, 70 and 72, which are arranged such that they radiate on the central region 64 at right angles.
- Said ultrasonic sources 66, 68, 70 and 72 serve on the one hand to irradiate the liquid entering through the liquid inlet 18 with ultrasound, and on the other hand to clean the filter 62.
- the apparatus has a turbidity measuring device 74 in the region of the liquid inlet 18, which is in communication with a flow control device 76 which forms a flow measuring and control device together with a flow measuring device 78.
- the flow control device 76 has a control valve 80 connected thereto.
- the flow measuring and control device is used to regulate the flow of liquid through the housing in dependence on the measured values of the turbidity measuring device. If the liquid to be disinfected has a high turbidity, a longer residence time is set in the housing by reducing the flow rate.
- the operation of the ultrasonic sources could also be controlled. For example, the power of the ultrasound sources or their operating times could be varied.
- magnetic field inductive means are provided on three different levels in the vertical direction, of which the ones indicated by reference numerals 82, 84 and 86 can be seen here.
- an air supply device 88 is provided for supplying air to the liquid at the exit from the housing 12.
- a housing with a circular cross section is described here, it may of course also have a different cross section, for example a square cross section.
- the device according to a particular embodiment may have a degassing device 89 in the region of the liquid feed 18.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Water Treatments (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention relates to a device for reducing germs in preferably optically transparent liquids, comprising: a housing (12) or a cavity with at least one liquid inflow (18) and with at least one liquid outflow (20) enabling the flow of liquid; at least one UV light source (22, 24, 26) inside the housing or cavity; at least one ultrasound source (38, 40, 42, 44, 46, 48) inside the housing or cavity, and; a first mechanical filtering device (30) that separates an ultrasound treatment area, inside of which the ultrasound source(s) is/are placed for acting upon a liquid flowing through the housing or the cavity and upon the mechanical filtering device(s), and a UV treatment area, inside of which the UV light source(s) is/are placed.
Description
VORRICHTUNG ZUR REDUZIERUNG VON KEIMEN IN, VORZUGSWEISE OPTISCH TRANSPARENTEN , FLÜSSIGKEITEN MITTELS ULTRASCHALL UND ULTRAVIOLETTER BESTRAHLUNGDEVICE FOR REDUCING GERMINES IN, PREFERABLY, OPTICALLY TRANSPARENT, ULTRASOUND AND ULTRAVIOLETTIC IRRADIENT LIQUIDS
Die vorliegende Erfindung betrifft eine Vorrichtung zur Reduzierung von Keimen in, vorzugsweise optisch transparenten, Flüssigkeiten.The present invention relates to a device for reducing germs in, preferably optically transparent, liquids.
Keime, wie zum Beispiel Viren, Pilze und Bakterien, in Wasser, das als Trinkwasser oder als eine Komponente von wässerigen Lösungen im Rahmen von zum Beispiel humanmedizinischen Therapien verwendet wird, können zu Krankheiten führen bzw. eine Verwendung des Wassers für den jeweiligen Zweck unmöglich machen. Daher stellt die Entkeimung von Flüssigkeiten eine wichtige Aufgabe dar. Übliche Entkeimungsverfahren verwenden Chemikalien, wie zum Beispiel Chlor. Dies ist mit der Verwendung oder Entstehung sehr aggressiver und ihrerseits gesundheitsschädigender Stoffe, wie zum Beispiel Ozon, verbunden.Germs, such as viruses, fungi and bacteria, in water used as drinking water or as a component of aqueous solutions in the context of, for example, human medical therapies can lead to diseases or make it impossible to use the water for the particular purpose , Therefore, the sterilization of liquids is an important task. Conventional sterilization methods use chemicals, such as chlorine. This is associated with the use or formation of very aggressive and in turn harmful substances, such as ozone.
Der Erfindung liegt somit die Aufgabe zugrunde, für eine gesundheitsschonendere Entkeimung von Flüssigkeiten zu sorgen.The invention is therefore based on the object to provide a health-friendly disinfection of liquids.
Erfindungsgemäß wird diese Aufgabe gelöst durch eine Vorrichtung zur Reduzierung von Keimen in, vorzugsweise optisch transparenten, Flüssigkeiten, umfassend: ein Gehäuse oder einen Hohlraum mit mindestens einem Flüssigkeitszulauf und mindestens einem Flüssigkeitsablauf für einen Durchlauf von Flüssigkeit, mindestens eine UV-Lichtquelle in dem Gehäuse bzw. Hohlraum, mindestens eine Ultraschallquelle in dem Gehäuse bzw.
Hohlraum, und eine erste mechanische Filtereinrichtung, die einen Ultraschallbehandlungsbereich, in dem die Ultraschallquelle(n) zum Einwirken auf eine durch das Gehäuse bzw. den Hohlraum strömende Flüssigkeit und die mechanische(n) Filtereinrichtung(en) angeordnet ist/sind, und einen UV-Behandlungsbereich trennt, in dem die UV-Lichtquelle(n) angeordnet ist/sind.According to the invention, this object is achieved by a device for reducing germs in, preferably optically transparent, liquids, comprising: a housing or a cavity with at least one liquid inlet and at least one liquid outlet for a passage of liquid, at least one UV light source in the housing or Cavity, at least one ultrasonic source in the housing or A cavity, and a first mechanical filter device having an ultrasonic treatment area, in which the ultrasonic source (s) for acting on a liquid flowing through the housing and the cavity (s) is / are arranged, and a UV Treatment area separates, in which the UV light source (s) is / are arranged.
Hier und im nachfolgenden sollen die Angaben, daß mindestens eine UV-Lichtquelle und mindestens eine Ultraschallquelle in dem Gehäuse bzw. den Hohlraum angeordnet ist, auch die Fälle umfassen, in denen die UV-Lichtquelle bzw. Ultraschallquelle in der Wand des Gehäuses bzw. Hohlraumes angeordnet oder das UV-Licht bzw. der Ultraschall von außen in das Gehäuse bzw. den Hohlraum eingekoppelt ist.Here and in the following, the information that at least one UV light source and at least one ultrasound source is arranged in the housing or the cavity should also include the cases in which the UV light source or ultrasound source in the wall of the housing or cavity arranged or the UV light or the ultrasound is coupled from the outside into the housing or the cavity.
Vorzugsweise ist der ersten mechanischen Filtereinrichtung mindestens eine zweite mechanische Filtereinrichtung in dem Gehäuse bzw. Hohlraum in Strömungsrichtung vorgeschaltet.Preferably, the first mechanical filter device is preceded by at least one second mechanical filter device in the housing or cavity in the flow direction.
Insbesondere kann dabei vorgesehen sein, daß mindestens eine Ultraschallquelle in dem Gehäuse vorgesehen ist, die derart angeordnet ist, daß sie die zweite mechanische Filtereinrichtung bzw. die weiteren mechanischen Filtereinrichtungen, vorzugsweise aus einer Richtung in Strömungsrichtung, mit Ultraschall bestrahlt.In particular, it may be provided that at least one ultrasonic source is provided in the housing, which is arranged such that it irradiates the second mechanical filter device or the other mechanical filter devices, preferably from one direction in the flow direction, with ultrasound.
Besonders bevorzugt ist eine Durchflußmeß- und -regeleinrichtung zur Messung und Regelung des Durchflusses der Flüssigkeit durch das Gehäuse bzw. den Hohlraum vorgesehen.Particularly preferred is a Durchflußmeß- and -regeleinrichtung for measuring and regulating the flow of the liquid through the housing or the cavity is provided.
Insbesondere ist eine mit der Durchflußmeß- und -regeleinrichtung verbundene Trübungs- und/oder Färbungsmeßeinrichtung zur Messung der Trübung und/oder Färbung der Flüssigkeit im Bereich des Flüssigkeitszulaufes des Gehäuses bzw. Hohlraumes vorgesehen
und die Durchflußmeß- und -regeleinrichtung gestaltet, um eine automatische Durchflußregelung in Abhängigkeit von den Meßwerten für die Trübung und/oder Färbung vorzunehmen, die von der Trübungs- und/oder Färbungsmeßeinrichtung erhalten werden. Wenn die Messung der Trübungs- und/oder Färbungseinrichtung eine hohe Trübung und/oder Färbung der Flüssigkeit im Bereich des Flüssigkeitszulaufes ergibt, so kann mittels der Durchflußmeß- und -regeleinrichtung dafür gesorgt werden, daß durch entsprechende Verlängerung der Verweildauer der Flüssigkeit in dem Gehäuse bzw. Hohlraum durch Reduzierung der Durchflußmenge die zu entkeimende Flüssigkeit dem Ultraschall und dem UV-Licht länger ausgesetzt wird. Dadurch läßt sich ein optimaler Wirkungsgrad der Vorrichtung erreichen.In particular, a turbidity and / or coloring measuring device connected to the flow measuring and control device is provided for measuring the turbidity and / or coloring of the liquid in the region of the liquid inlet of the housing or cavity and configuring the flow metering and regulating means to perform automatic flow control in response to the turbidity and / or staining measurements obtained from the turbidity and / or stain measuring means. If the measurement of the turbidity and / or coloring device results in a high turbidity and / or coloration of the liquid in the region of the liquid feed, it can be ensured by means of the flow measuring and control device that by appropriate extension of the residence time of the liquid in the housing or Cavity, by reducing the flow rate, exposes the liquid to be sterilized to ultrasound and UV light for longer. As a result, an optimal efficiency of the device can be achieved.
Günstigerweise ist die bzw. mindestens eine Ultraschallquelle im Bereich des Flüssigkeitsablaufs in dem Gehäuse bzw. Hohlraum vorgesehen.Conveniently, the or at least one ultrasonic source is provided in the region of the liquid drain in the housing or cavity.
Vorteilhafterweise weist die bzw. mindestens eine Ultraschallquelle eine Leistung von mehr als 1 Watt/cm2 auf.Advantageously, the or at least one ultrasound source has a power of more than 1 watt / cm 2 .
Zweckmäßigerweise ist die Frequenz der bzw. mindestens einer Ultraschallquelle größer als 18 IcHz.Conveniently, the frequency of the or at least one ultrasonic source is greater than 18 IcHz.
Vorteilhafterweise ist eine Entgasungseinrichtung im Bereich des Flüssigkeitszulaufes vorgesehen. Durch die Entgasungseinrichtung wird die Wirkung des Ultraschalls erhöht. Düsen erzeugen einen Druckabfall in einem Gehäuse und eine starke lokale Erhöhung der Strömungsgeschwindigkeit. Der dabei entstehende Druckabfall entgast die Flüssigkeit, da ein Druckgefalle zum Atmosphärendruck erzeugt wird. Diese Entgasung wird einfach durch Flüssigkeitsprobenentnahme und deren Gasanalyse vor und nach dem Einlauf in das System nachgewiesen. Ein direkter Zusammenhang zwischen Entgasung und Wirkungsgrad zur Herstellung reiner Flüssigkeiten im System ist bestimmt.
Weiterhin kann vorgesehen sein, daß mindestens eine Magnetfeldinduktionseinrichtung zum Induzieren eines Magnetfeldes im Ultraschallbehandlungsbereich vorgesehen ist.Advantageously, a degassing device is provided in the region of the liquid feed. The degassing device increases the effect of the ultrasound. Nozzles produce a pressure drop in a housing and a strong local increase in flow velocity. The resulting pressure drop degasses the liquid, as a pressure drop is generated to atmospheric pressure. This degassing is easily detected by liquid sampling and gas analysis before and after entry into the system. A direct relationship between degasification and efficiency for the production of pure liquids in the system is determined. Furthermore, it can be provided that at least one magnetic field induction device is provided for inducing a magnetic field in the ultrasonic treatment region.
Zweckmäßigerweise ist eine Luftzuführeinrichtung im Bereich des Flüssigkeitsablaufes des Gehäuses bzw. des Hohlraumes zur Zuführung von Luft zur Flüssigkeit vorgesehen. Dies dient dazu, einer Entgasung der Flüssigkeit in dem Gehäuse bzw. Hohlraum auszugleichen.Appropriately, an air supply device is provided in the region of the liquid outlet of the housing or the cavity for supplying air to the liquid. This serves to compensate for degassing of the liquid in the housing or cavity.
Günstigerweise besteht die Wand des Gehäuses bzw. Hohlraumes aus druckstabilem Kunststoff oder Metall.Conveniently, the wall of the housing or cavity made of pressure-resistant plastic or metal.
Gemäß einer weiteren besonderen Ausführungsform der Erfindung kann vorgesehen sein, daß das Gehäuse bzw. Hohlraum die Gestalt eines Zylinders aufweist und mit Ausnahme des Flüssigkeitszulaufes und des Flüssigkeitsablaufes geschlossen ist.According to a further particular embodiment of the invention can be provided that the housing or cavity has the shape of a cylinder and is closed except for the liquid inlet and the liquid outlet.
Zweckmäßigerweise ist die bzw. jede UV-Lichtquelle stabförmig gestaltet und erstreckt sie sich parallel zur Längsachse des Zylinders.Conveniently, the or each UV light source is designed rod-shaped and extends parallel to the longitudinal axis of the cylinder.
Weiterhin kann vorgesehen sein, daß der Flüssigkeitszulauf des Gehäuses bzw. Hohlraumes an einem Längsende des Zylinders vorgesehen ist und der Flüssigkeitsablauf des Gehäuses bzw. Hohlraumes an dem anderen Längsende des Zylinders vorgesehen ist.Furthermore, it can be provided that the liquid inlet of the housing or cavity is provided at a longitudinal end of the cylinder and the liquid outlet of the housing or cavity is provided at the other longitudinal end of the cylinder.
Gemäß einer weiteren besonderen Ausführungsform umfaßt die erste mechanische Filtereinrichtung bzw. mindestens eine weitere mechanische Filtereinrichtung einen korbformigen Filter, der von dem Zylinder koaxial umgeben ist. Selbstverständlich kann der korbförmige Filter aus dem Gehäuse bzw. Hohlraum herausnehmbar sein.
Schließlich kann vorgesehen sein, daß die zweite mechanische Filtereinrichtung einen scheibenförmigen Filter umfaßt, der im rechten Winkel zur Längsachse des Zylinders verläuft. Selbstverständlich kann der scheibenförmige Filter ebenfalls aus dem Gehäuse bzw. Hohlraum herausnehmbar sein.According to a further particular embodiment, the first mechanical filter device or at least one further mechanical filter device comprises a basket-shaped filter which is coaxially surrounded by the cylinder. Of course, the basket-shaped filter can be removed from the housing or cavity. Finally, it can be provided that the second mechanical filter device comprises a disc-shaped filter which extends at right angles to the longitudinal axis of the cylinder. Of course, the disc-shaped filter can also be removed from the housing or cavity.
Der Erfindung liegt die überraschende Erkenntnis zugrunde, daß durch den Einsatz von Ultraschall und UV-Licht und darüber hinaus in einem jeweiligen Ultraschallbehandlungsbereich bzw. UV-Behandlungsbereich, die durch eine erste mechanische Filtereinrichtung getrennt werden, sowohl Ultraschall als auch UV-Licht auf die Flüssigkeit effektiv einwirken können. Im Ultraschallbehandlungsbereich kommt es durch den Ultraschall zur Ultraschallabtötung als Hauptursache für den mechanischen Zellaufbruch. Neben der mechanischen Erosion der Zellwand induzieren die starken Druck- und Temperaturwechsel die Polymerisierungsreaktionen im Inneren der Zelle, die zum Abbau von globulären Proteinen führen. Diese werden in ihre Untereinheit aufgespaltet, wobei zunächst deren Quartärstruktur zerstört wird. In diesem Zusammenhang sind neben der Abtrennung von niedrig molekularen Peptiden auch die Aufspaltung von zyklischen Aminosäuren beobachtet worden.The invention is based on the surprising finding that both ultrasound and UV light are applied to the liquid by the use of ultrasound and UV light and, moreover, in a respective ultrasound treatment region or UV treatment region which are separated by a first mechanical filter device to be effective. In the ultrasound treatment area, ultrasound kills ultrasound as the main cause of mechanical cell disruption. In addition to the mechanical erosion of the cell wall, the strong pressure and temperature changes induce the polymerization reactions inside the cell, which lead to the degradation of globular proteins. These are split into their subunit, whereby first their quaternary structure is destroyed. In this context, apart from the separation of low molecular weight peptides, the breakdown of cyclic amino acids has also been observed.
Die durch die Ultraschallabtötung entstehenden Schwebeteilchen werden durch die erste mechanische Filtereinrichtung vom Gelangen in den UV-Behandlungsbereich abgehalten. Dadurch kann das UV-Licht von der bzw. den UV-Lichtquelle(n) im UV-Behandlungsbereich tiefer in die Flüssigkeit eindringen. Parallel erfolgt eine ständige Reinigung der UV- Lichtquellen und/oder Gläser etc. Folglich wird die Wirkung des UV-Lichts verbessert bzw. können UV-Lichtquellen mit geringerer Leistung verwendet werden. Das, insbesondere kurzwellige, UV-Licht wird in Substanzen, wie zum Beispiel DNA, in der Flüssigkeit absorbiert. Die absorbierte UV-Lichtenergie reicht aus, um eine photochemische Umwandlung zu bewirken. Eine für die Teilung der DNA notwendige Informationsweitergabe unterbleibt. Bei der Überschreitung eines Informationsstörungsniveaus sterben Zellen, ohne sich zu vermehren. Somit werden durch UV-Licht lebende Mikroorganismen durch Zerstörung der DNA abgetötet oder inaktiviert.
Die Wellenlänge des UV-Lichtes liegt hierfür typischerweise in einem Bereich von 170 bis 400 Nanometer, vorzugsweise bei 254 bzw. 200 Nanometer bei Vakuum-UVC-Lampen.The suspended particles resulting from the ultrasonic killing are prevented from passing into the UV treatment area by the first mechanical filter device. As a result, the UV light from the UV light source (s) can penetrate deeper into the liquid in the UV treatment area. In parallel, there is a constant cleaning of the UV light sources and / or glasses, etc. Consequently, the effect of UV light is improved or UV light sources can be used with less power. The, in particular short-wave, UV light is absorbed in substances, such as DNA, in the liquid. The absorbed UV light energy is sufficient to effect photochemical conversion. A necessary for the division of DNA information disclosure is omitted. When an information disorder level is exceeded, cells die without proliferating. Thus, UV light living microorganisms are killed or inactivated by destroying the DNA. The wavelength of the UV light is typically in a range from 170 to 400 nanometers, preferably at 254 or 200 nanometers for vacuum UVC lamps.
Die Vorrichtung ist besonders geeignet bei einem Durchfluß von mehr als 10 Litern proThe device is particularly suitable for a flow of more than 10 liters per
Minute.Minute.
Die erfindungsgemäße Vorrichtung weist einen besonders hohen Wirkungsgrad auf. Sie ist überall einsetzbar, wo die Anzahl der Keime in Flüssigkeiten reduziert werden soll. Dabei kann auch aus stark verseuchtem Wasser ein Wasser mit Trinkwasserqualität erreicht werden.The device according to the invention has a particularly high efficiency. It can be used anywhere where the number of germs in liquids should be reduced. It can also be reached from heavily contaminated water, a water with drinking water quality.
Je nach Qualität der zu reinigenden Flüssigkeiten kann die Vorrichtung bei verschiedenen Durchflußmengen arbeiten und damit jeweils einen optimalen Wirkungsgrad der Entkeimung erreichen.Depending on the quality of the liquids to be cleaned, the device can operate at different flow rates and thus each achieve an optimal efficiency of sterilization.
Die Vorrichtung kann als Kompaktsystem als mobile Variante oder innerhalb eines existierenden Flüssigkeitsleitungssystems eingesetzt werden. Durch genau dosierte Bestrahlung mit UV-Licht und genau dosierte Bestrahlung mit Ultraschall kann eine Entkeimung mit einem minimalen Energieverbrauch erzielt werden. Die Vorrichtung eliminiert sowohl Bakterien als auch Viren und Schimmelkulturen in verseuchten Flüssigkeiten. Am Flüssigkeitsablauf austretendes, entkeimtes Wasser ist zu 100% trinkbar, ohne weitere chemische Zusätze.The device can be used as a compact system as a mobile variant or within an existing fluid conduit system. Exactly dosed irradiation with UV light and precisely metered irradiation with ultrasound can achieve sterilization with minimal energy consumption. The device eliminates both bacteria and viruses and mold cultures in contaminated fluids. Sterilized water exiting at the liquid outlet is 100% drinkable, without further chemical additives.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und aus der nachstehenden Beschreibung, in der ein Ausführungsbeispiel anhand der schematischen Zeichnungen im einzelnen erläutert ist. Dabei zeigt:Further features and advantages of the invention will become apparent from the claims and from the following description in which an embodiment with reference to the schematic drawings is explained in detail. Showing:
Figur 1 eine Vertikalschnittansicht einer Vorrichtung zur Reduzierung vonFigure 1 is a vertical sectional view of a device for reducing
Keimen gemäß einer besonderen Ausfuhrungsform der Erfindung; und
Figur 2 eine Detailansicht eines modifizierten Flüssigkeitszulaufes.Germinating according to a particular embodiment of the invention; and Figure 2 is a detail view of a modified liquid inlet.
Die in Figur 1 gezeigte Vorrichtung 10 umfaßt ein Gehäuse 12, das die Gestalt eines Zylinders aufweist, der an seinem oberen Längsende durch einen Deckel 14 und an seinem unteren Längsende durch einen Deckel 16 verschlossen ist. Der untere Deckel 16 weist einen nicht im Detail dargestellten Flüssigkeitszulauf 18 auf und der obere Deckel 14 weist einen nicht näher dargestellten Flüssigkeitsablauf 20 auf. Im oberen Deckel 14 sind drei stabförmige UV-Lichtquellen 22, 24, 26 mit einem Versatz von 120 Grad zueinander um die Längsachse 28 des Gehäuses 12 angeordnet. Die UV-Lichtquellen 22, 24, 26 erstrecken sich parallel zur Längsachse 28 vom oberen Deckel 14 in das Gehäuse 12 hinein. Die drei UV- Lichtquellen 22, 24, 26 werden ausgehend von deren unteren Enden über einen Teil ihrer Länge in Richtung zum oberen Deckel 14 von einer ersten Filtereinrichtung umgeben, die einen korbförmigen Filter 30 umfaßt, der vom Gehäuse 12 koaxial umgeben wird. Der korbförmige Filter 30 ist nur über einen unteren Teilbereich durchlässig und umgibt die drei UV-Lichtquellen 22, 24 und 26 nicht in deren zum oberen Deckel 14 benachbarten Bereich, so daß über den Flüssigkeitszulauf 18 in das Gehäuse 12 eintretende Flüssigkeit durch den korbförmigen Filter 30 zum Flüssigkeitsablauf 20 gelangen kann. In drei zueinander beabstandeten Ebenen 32, 34 und 36 in vertikaler Richtung sind jeweils drei Ultraschallquellen mit einem Versatz von 120 Grad zueinander um die Längsachse 28 des Gehäuses 12 angeordnet, von denen jedoch nur jeweils zwei, nämlich 38 und 40, 42 und 44 sowie 46 und 48 gezeigt sind. Besagte Ultraschallquellen sind so in der Zylinderwand 50 des Gehäuses 12 angeordnet, daß sie den durchlässigen Teil der Zylinderwand 52 des Filters 30 in radialer Richtung von außen bestrahlen. Dadurch wird zum einen die in dem durch den Filter 30 von dem UV-Behandlungsbereich 54 abgetrennten Ultraschallbehandlungsbereich 56 fließende Flüssigkeit mit Ultraschall beaufschlagt und zum andern der Filter 30 von den resultierenden Schwebeteilchen gereinigt. Die vom Filter 30 entfernten Schwebeteilchen sammeln sich in den durch 58 und 60 gekennzeichneten Bereichen und können später in einem Spülvorgang entfernt werden. Der Ultraschall bewirkt auch eine homogene Flüssigkeitsstruktur. Der Abstand zwischen dem Filter 30 und einer jeweiligen UV- Lichtquelle 22, 26, 28 liegt im Bereich von 1 cm.
Dem Filter 30 ist in Strömungsrichtung eine zweite Filtereinrichtung vorgeschaltet, die einen scheibenförmigen Filter 62 umfaßt. Der scheibenförmige Filter 62 erstreckt sich quer zur Längsachse 28 des Gehäuses 12. Er ist in seinem mittleren Bereich 64 durchlässig. In dem unteren Deckel 16 sind mehrere Ultraschallquellen, von denen vier mit den Bezugszeichen 66, 68, 70 und 72 gekennzeichnet sind, vorgesehen, die derart angeordnet sind, daß sie auf den mittleren Bereich 64 im rechten Winkel einstrahlen. Besagte Ultraschallquellen 66, 68, 70 und 72 dienen zum einen dazu, die durch den Flüssigkeitszulauf 18 eintretende Flüssigkeit mit Ultraschall zu bestrahlen, und zum anderen dazu, den Filter 62 zu reinigen.The device 10 shown in Figure 1 comprises a housing 12 having the shape of a cylinder which is closed at its upper longitudinal end by a cover 14 and at its lower longitudinal end by a cover 16. The lower lid 16 has a liquid inlet 18, not shown in detail, and the upper lid 14 has a liquid outlet 20, not shown in detail. In the upper lid 14 three rod-shaped UV light sources 22, 24, 26 are arranged with an offset of 120 degrees to each other about the longitudinal axis 28 of the housing 12. The UV light sources 22, 24, 26 extend parallel to the longitudinal axis 28 from the upper lid 14 into the housing 12. The three UV light sources 22, 24, 26 are surrounded by their lower ends over part of their length towards the upper lid 14 by a first filter means comprising a basket-shaped filter 30 which is surrounded by the housing 12 coaxially. The basket-shaped filter 30 is permeable only over a lower portion and surrounds the three UV light sources 22, 24 and 26 not in their upper lid 14 adjacent area, so that over the liquid inlet 18 into the housing 12 entering liquid through the basket-shaped filter 30th can get to the liquid outlet 20. In three mutually spaced planes 32, 34 and 36 in the vertical direction each three ultrasonic sources are arranged with an offset of 120 degrees to each other about the longitudinal axis 28 of the housing 12, of which, however, only two, namely 38 and 40, 42 and 44 and 46 and 48 are shown. Said ultrasonic sources are arranged in the cylinder wall 50 of the housing 12 so as to irradiate the permeable part of the cylinder wall 52 of the filter 30 in the radial direction from the outside. As a result, on the one hand, the liquid flowing in the ultrasonic treatment area 56 separated by the filter 30 from the UV treatment area 54 is subjected to ultrasound and, on the other hand, the filter 30 is cleaned of the resulting suspended particles. The suspended particles removed from the filter 30 accumulate in the areas indicated by 58 and 60 and can later be removed in a flushing operation. The ultrasound also causes a homogeneous liquid structure. The distance between the filter 30 and a respective UV light source 22, 26, 28 is in the range of 1 cm. The filter 30 is preceded in the flow direction by a second filter device comprising a disc-shaped filter 62. The disc-shaped filter 62 extends transversely to the longitudinal axis 28 of the housing 12. It is permeable in its central region 64. In the lower lid 16 are provided a plurality of ultrasonic sources, four of which are designated by the reference numerals 66, 68, 70 and 72, which are arranged such that they radiate on the central region 64 at right angles. Said ultrasonic sources 66, 68, 70 and 72 serve on the one hand to irradiate the liquid entering through the liquid inlet 18 with ultrasound, and on the other hand to clean the filter 62.
Wenn die Flüssigkeit sowohl den Filter 62 als auch den Filter 30 passiert hat, ist sie zumindest nahezu schwebeteilchenfrei, so daß dann das UV-Licht von den UV-Lichtquellen 22, 24 und 26 tiefer in die Flüssigkeit eindringen und die oben beschriebenen Wirkungen erreichen kann.When the liquid has passed through both the filter 62 and the filter 30, it is at least nearly free of floating particles, so that the UV light from the UV light sources 22, 24 and 26 can penetrate deeper into the liquid and achieve the effects described above ,
Zur weiteren Steigerung des Wirkungsgrades weist die Vorrichtung eine Trübungsmeßeinrichtung 74 im Bereich des Flüssigkeitszulaufes 18 auf, die mit einer Durchflußregeleinrichtung 76 in Verbindung steht, die gemeinsam mit einer Durchflußmeßeinrichtung 78 eine Durchflußmeß- und -regeleinrichtung bildet. Dazu weist die Durchflußregeleinrichtung 76 ein damit in Verbindung stehendes Regelventil 80 auf. Die Durchflußmeß- und -regeleinrichtung dient zur Regelung des Durchflusses von Flüssigkeit durch das Gehäuse in Abhängigkeit von den Meßwerten der Trübungsmeßeinrichtung. Wenn die zu entkeimende Flüssigkeit eine hohe Trübung aufweist, so wird eine längere Verweilzeit in dem Gehäuse eingestellt, indem die Durchflußmenge reduziert wird. Selbstverständlich könnte in Abhängigkeit von der Trübungsmessung auch der Betrieb der Ultraschallquellen gesteuert bzw. geregelt werden. Beispielsweise könnte die Leistung der Ultraschallquellen oder deren Betriebszeiten variiert werden.
Des weiteren sind auf drei verschiedenen Ebenen in vertikaler Richtung Magnetfeldindulctionseinrichtung vorgesehen, von denen hier die mit den Bezugszeichen 82, 84 und 86 gekennzeichneten zu sehen sind.To further increase the efficiency, the apparatus has a turbidity measuring device 74 in the region of the liquid inlet 18, which is in communication with a flow control device 76 which forms a flow measuring and control device together with a flow measuring device 78. For this purpose, the flow control device 76 has a control valve 80 connected thereto. The flow measuring and control device is used to regulate the flow of liquid through the housing in dependence on the measured values of the turbidity measuring device. If the liquid to be disinfected has a high turbidity, a longer residence time is set in the housing by reducing the flow rate. Of course, depending on the turbidity measurement, the operation of the ultrasonic sources could also be controlled. For example, the power of the ultrasound sources or their operating times could be varied. Furthermore, magnetic field inductive means are provided on three different levels in the vertical direction, of which the ones indicated by reference numerals 82, 84 and 86 can be seen here.
Schließlich ist im Bereich des Flüssigkeitsablaufes 20 eine Luftzuführeinrichtung 88 zur Zufuhrung von Luft zur Flüssigkeit beim Austritt aus dem Gehäuse 12 vorgesehen.Finally, in the region of the liquid outlet 20, an air supply device 88 is provided for supplying air to the liquid at the exit from the housing 12.
Auch wenn hier ein Gehäuse mit einem kreisförmigen Querschnitt beschrieben ist, kann es selbstverständlich auch einen anderen Querschnitt, zum Beispiel quadratischen Querschnitt, aufweisen.Although a housing with a circular cross section is described here, it may of course also have a different cross section, for example a square cross section.
Zur Steigerung des Wirkungsgrades des Ultraschalls kann die Vorrichtung gemäß einer besonderen Ausführungsform (siehe Figur 2) eine Entgasungseinrichtung 89 im Bereich des Flüssigkeitszulaufes 18 aufweisen.In order to increase the efficiency of the ultrasound, the device according to a particular embodiment (see FIG. 2) may have a degassing device 89 in the region of the liquid feed 18.
Die in der vorliegenden Beschreibung, in der Zeichnung sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebigen Kombinationen für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.
The features of the invention disclosed in the present description, in the drawing and in the claims may be essential both individually and in any combination for the realization of the invention in its various embodiments.
Claims
1. Vorrichtung (10) zur Reduzierung von Keimen in, vorzugsweise optisch transparenten, Flüssigkeiten, umfassend:1. Device (10) for reducing germs in, preferably optically transparent, liquids, comprising:
- ein Gehäuse (12) oder einen Hohlraum mit mindestens einem Flüssigkeitszulauf (18) und mindestens einem Flüssigkeitsablauf (20) für einen Durchlauf von Flüssigkeit,- A housing (12) or a cavity with at least one liquid inlet (18) and at least one liquid outlet (20) for a passage of liquid,
- mindestens eine UV-Lichtquelle (22, 24, 26) in dem Gehäuse (12) bzw. Hohlraum,at least one UV light source (22, 24, 26) in the housing (12) or cavity,
- mindestens eine Ultraschallquelle (38, 40; 42, 44, 46, 48) in dem Gehäuse (12) bzw. Hohlraum, und- At least one ultrasonic source (38, 40, 42, 44, 46, 48) in the housing (12) or cavity, and
- eine erste mechanische Filtereinrichtung, die einen Ultraschallbehandlungsbereich (56), in dem die Ultraschallquelle(n) (38, 40; 42, 44, 46, 48) zum Einwirken auf eine durch das Gehäuse (12) bzw. den Hohlraum strömende Flüssigkeit und die mechanische(n) Filtereinrichtung(en) angeordnet ist/sind, und einen UV- Behandlungsbereich (54) trennt, in dem die UV-Lichtquelle(n) (22, 24, 26) angeordnet ist/sind.a first mechanical filter device comprising an ultrasonic treatment area (56) in which the ultrasonic source (s) (38, 40; 42, 44, 46, 48) act on a liquid flowing through the housing (12) and the cavity, respectively the mechanical filter device (s) is / are arranged, and a UV treatment region (54) separates, in which the UV light source (s) (22, 24, 26) is / are arranged.
2. Vorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, daß der ersten mechanischen Filtereinrichtung mindestens eine zweite mechanische Filtereinrichtung in dem Gehäuse (12) bzw. Hohlraum in Strömungsrichtung vorgeschaltet ist.2. Device (10) according to claim 1, characterized in that the first mechanical filter device is preceded by at least one second mechanical filter device in the housing (12) or cavity in the flow direction.
3. Vorrichtung (10) nach Anspruch 2, dadurch gekennzeichnet, daß mindestens eine Ultraschallquelle (66, 68, 70 72) in dem Gehäuse (12) bzw. Hohlraum vorgesehen ist, die derart angeordnet ist, daß sie die zweite mechanische Filtereinrichtung bzw. die weiteren Filtereinrichtungen, vorzugsweise aus einer Richtung in Strömungsrichtung, mit Ultraschall bestrahlt.3. Device (10) according to claim 2, characterized in that at least one ultrasonic source (66, 68, 70 72) in the housing (12) or cavity is provided, which is arranged such that it the second mechanical filter device or the others Filtering devices, preferably from one direction in the flow direction, irradiated with ultrasound.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der bzw. die Ultraschallquelle(n) (38, 40; 42, 44, 46, 48) mit einer Titannitrid-Beschichtung versehen ist/sind.4. Apparatus according to claim 3, characterized in that the or the ultrasonic source (s) (38, 40, 42, 44, 46, 48) is provided with a titanium nitride coating / are.
5. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß eine Durchflußmeß- (78) und -regeleinrichtung (76) zur Messung und Regelung des Durchflusses der Flüssigkeit durch das Gehäuse (12) bzw. den Hohlraum vorgesehen ist.5. Device (10) according to one of the preceding claims, characterized in that a flow measuring (78) and -regeleinrichtung (76) for measuring and regulating the flow of the liquid through the housing (12) or the cavity is provided.
6. Vorrichtung (10) nach Anspruch 4, dadurch gekennzeichnet, daß eine mit der Durchflußmeß- (78) und -regeleinrichtung (76) verbundene Trübungs- und/oder Färbungsmeßeinrichtung (74) zur Messung der Trübung und/oder Färbung der Flüssigkeit im Bereich des Flüssigkeitszulaufes (18) des Gehäuses (12) bzw. Hohlraumes vorgesehen ist und die Durchflußmeß- (78) und -regeleinrichtung (76) gestaltet ist, um eine automatische Durchflußregelung in Abhängigkeit von den Meßwerten für die Trübung und/oder Färbung vorzunehmen, die von der Trübungs- und/oder Färbungsmeßeinrichtung (74) erhalten werden.6. Device (10) according to claim 4, characterized in that a with the flow measuring (78) and -regeleinrichtung (76) connected to turbidity and / or coloring (74) for measuring the turbidity and / or color of the liquid in the area the liquid inlet (18) of the housing (12) or cavity is provided and the flow measuring (78) and -regeleinrichtung (76) is designed to perform an automatic flow control function of the measured values for turbidity and / or coloring, the are obtained from the turbidity and / or stain measuring device (74).
7. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die bzw. mindestens eine Ultraschallquelle im Bereich des Flüssigkeitsablaufs (20) in dem Gehäuse (12) bzw. Hohlraum vorgesehen ist.7. Device (10) according to one of the preceding claims, characterized in that the or at least one ultrasonic source in the region of the liquid outlet (20) in the housing (12) or cavity is provided.
8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die bzw. mindestens eine Ultraschall quelle (38, 40; 42, 44, 46, 48) eine Leistung von mehr als 1 Watt/cm2 aufweist. 8. Device according to one of the preceding claims, characterized in that the or at least one ultrasonic source (38, 40, 42, 44, 46, 48) has a power of more than 1 watt / cm 2 .
9. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Frequenz der bzw. mindestens einer Ultraschallquelle (38, 40; 42, 44, 46, 48) größer als 18 IcHz ist.9. Device according to one of the preceding claims, characterized in that the frequency of or at least one ultrasonic source (38, 40; 42, 44, 46, 48) is greater than 18 IcHz.
10. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß eine Entgasungseinrichtung (89) im Bereich des Flüssigkeitszulaufes (18) vorgesehen ist.10. Device according to one of the preceding claims, characterized in that a degassing device (89) in the region of the liquid inlet (18) is provided.
11. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mindestens eine Magnetfeldinduktionseinrichtung (82, 84, 86) zum Induzieren eines Magnetfeldes im Ultraschallbehandlungsbereich (56) vorgesehen ist.11. Device (10) according to any one of the preceding claims, characterized in that at least one magnetic field induction means (82, 84, 86) for inducing a magnetic field in the ultrasonic treatment area (56) is provided.
12. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß eine Luftzufuhreinrichtung (88) im Bereich des Flüssigkeitsablaufes (20) des Gehäuses bzw. des Hohlraumes (12) zur Zuführung von Luft zur Flüssigkeit vorgesehen ist.12. Device (10) according to any one of the preceding claims, characterized in that an air supply means (88) in the region of the liquid outlet (20) of the housing or the cavity (12) is provided for supplying air to the liquid.
13. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Wand des Gehäuses (12) bzw. Hohlraumes aus druckstabilem Kunststoff oder Metall besteht.13. Device (10) according to any one of the preceding claims, characterized in that the wall of the housing (12) or cavity made of pressure-resistant plastic or metal.
14. Vorrichtung (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (12) bzw. der Hohlraum die Gestalt eines Zylinders aufweist und mit Ausnahme des Flüssigkeitszulaufes (18) und des Flüssigkeitsablaufes (20) geschlossen ist.14. Device (10) according to any one of the preceding claims, characterized in that the housing (12) or the cavity has the shape of a cylinder and with the exception of the liquid inlet (18) and the liquid outlet (20) is closed.
15. Vorrichtung (10) nach Anspruch 14, dadurch gekennzeichnet, daß die bzw. jede UV- Lichtquelle (22, 24, 26) stabförmig gestaltet ist und sich parallel zur Längsachse des Zylinders erstreckt. 15. Device (10) according to claim 14, characterized in that the or each UV light source (22, 24, 26) is designed rod-shaped and extends parallel to the longitudinal axis of the cylinder.
16. Vorrichtung (10) nach Anspruch 15, dadurch gekennzeichnet, daß der Flüssigkeitszulauf (18) des Gehäuse (12) bzw. Hohlraumes an einem Längsende des Zylinders vorgesehen ist und der Flüssigkeitsablauf (20) des Gehäuses (12) bzw. Hohlraumes an dem anderen Längsende des Zylinders vorgesehen ist.16. Device (10) according to claim 15, characterized in that the liquid inlet (18) of the housing (12) or cavity is provided at a longitudinal end of the cylinder and the liquid outlet (20) of the housing (12) or cavity on the another longitudinal end of the cylinder is provided.
17. Vorrichtung (10) nach Anspruch 16, dadurch gekennzeichnet, daß die erste mechanische Filtereinrichtung bzw. mindestens eine weitere mechanische Filtereinrichtung einen korbförmigen Filter (30) umfaßt, der von dem Zylinder koaxial umgeben ist.17. Device (10) according to claim 16, characterized in that the first mechanical filter device or at least one further mechanical filter device comprises a basket-shaped filter (30) which is surrounded by the cylinder coaxially.
18. Vorrichtung (10) nach Anspruch 17, dadurch gekennzeichnet, daß die zweite mechanische Filtereinrichtung einen scheibenförmigen Filter (30) umfaßt, der im rechten Winkel zur Längsachse des Zylinders verläuft. 18. Device (10) according to claim 17, characterized in that the second mechanical filter means comprises a disc-shaped filter (30) which extends at right angles to the longitudinal axis of the cylinder.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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DE202005005684.7 | 2005-04-10 | ||
DE202005005684 | 2005-04-10 | ||
DE202005006577.3 | 2005-04-24 | ||
DE202005006577 | 2005-04-24 | ||
DE202005009923.6 | 2005-06-24 | ||
DE202005009923U DE202005009923U1 (en) | 2005-04-10 | 2005-06-24 | Device used for reduction of germs in transparent fluid, working with ultra violet light and ultrasound |
Publications (1)
Publication Number | Publication Date |
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WO2006108600A1 true WO2006108600A1 (en) | 2006-10-19 |
Family
ID=35062685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/003280 WO2006108600A1 (en) | 2005-04-10 | 2006-04-10 | Device for reducing germs in preferably optically transparent liquids by using ultrasound and ultraviolet irradiation |
Country Status (2)
Country | Link |
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DE (1) | DE202005009923U1 (en) |
WO (1) | WO2006108600A1 (en) |
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WO2009142597A1 (en) * | 2008-05-21 | 2009-11-26 | Wallenius Water Aktiebolag | Filter arrangement |
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GB2500664A (en) * | 2012-03-29 | 2013-10-02 | Quantock Associates Ltd | Liquid purification using ultrasound and electromagnetic radiation |
US10286992B2 (en) | 2010-11-09 | 2019-05-14 | Trojan Technologies | Fluid treatment system |
RU2793357C2 (en) * | 2021-05-25 | 2023-03-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" | Device for cleaning and disinfecting water |
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CN103232090A (en) * | 2013-05-07 | 2013-08-07 | 广东工业大学 | Ultrasound-assisted photocatalysis water processing device |
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DE202005009923U1 (en) | 2005-09-22 |
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