EP2542504A1 - Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeit - Google Patents
Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeitInfo
- Publication number
- EP2542504A1 EP2542504A1 EP11710399A EP11710399A EP2542504A1 EP 2542504 A1 EP2542504 A1 EP 2542504A1 EP 11710399 A EP11710399 A EP 11710399A EP 11710399 A EP11710399 A EP 11710399A EP 2542504 A1 EP2542504 A1 EP 2542504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- time
- intensity
- measured
- disinfection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 230000005855 radiation Effects 0.000 claims abstract description 18
- 239000003651 drinking water Substances 0.000 claims abstract description 15
- 235000020188 drinking water Nutrition 0.000 claims abstract description 15
- 238000011156 evaluation Methods 0.000 claims description 13
- 230000001419 dependent effect Effects 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 238000007405 data analysis Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000006870 function Effects 0.000 description 12
- 230000009467 reduction Effects 0.000 description 8
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012009 microbiological test Methods 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010008631 Cholera Diseases 0.000 description 1
- 208000037386 Typhoid Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 201000008297 typhoid fever Diseases 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of 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
- C02F1/30—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
-
- 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 or 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
-
- 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
- C02F2201/326—Lamp control systems
-
- 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
-
- 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
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- 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
- C02F2209/02—Temperature
-
- 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
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/02—Location of water treatment or water treatment device as part of a bottle
-
- 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
- C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug
-
- 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 invention relates to a device for determining the degree of disinfection of a liquid present in a vessel which is transparent at least in a UV region, in particular of drinking water.
- the invention relates to a method for determining the degree of disinfection of a liquid present in a vessel which is permeable to light, at least in a UV region, in particular drinking water.
- SODIS Small Drinking Water Disinfection
- WHO ETH Zurich
- UN the "most efficient and cost-effective drinking water disinfection”.
- SODIS can refer to already 3 million users internationally, but has disadvantages in the application and the acceptance.
- solar direct drinking water disinfection is given a guideline value of 6 hours in direct sunlight and 12-18 hours in partial cloud cover.
- this information depends on various factors, such as the position of the sun, the degree of cloud cover, temperature, shadows, wind and precipitation, which make it difficult to estimate the necessary irradiation time and trust in the actual disinfection. Due to the lack of control of the method, the water often does not last long exposed enough to the sun, whereby no complete sterilization takes place. This in turn results in the disease of the users of dysentery, cholera, typhoid, etc.
- a UV measuring device for measuring the intensity of the UV radiation, in particular the UV radiation of the sunlight, in the region of the vessel,
- the evaluation unit calculates the measured values for the UV intensity at certain points in time from the beginning of a measurement to form a parameter
- the evaluation unit compares the determined at certain times characteristics with a predetermined characteristic, which predetermined characteristic corresponds to a defined degree of disinfection of the liquid, and wherein
- the device comprises at least one signal output device, which outputs a signal in the event that the determined characteristic value reaches or exceeds the value of the predetermined characteristic.
- a commercial PET bottle is filled with the contaminated water and then placed in the sun.
- the UV radiation of the sun kills germs in the water.
- the water is disinfected after about 1-3 days.
- SODIS SODIS
- the present invention offers a solution in the form of a low-cost and self-sufficient technical device that measures the optimum UV irradiation time and indicates to users when the solar water disinfection cycle is completed.
- the device can be produced very cheaply and enable a family to independently obtain safe drinking water for years.
- the device further comprises a temperature measuring device for determining the temperature of the liquid in the vessel.
- the determined temperature of the liquid in the vessel can then be taken into account in the determination of the parameter.
- the temperature factor can be an important part of accelerating the disinfection. At temperatures above 40 ° C pathogens are already killed by the temperature alone. The temperature disinfection is independent of the UV radiation, but in combination a guarantee for an optimal disinfection.
- a sufficient temperature can be achieved by a dark or reflective surface on which the water-filled PET bottles are stored for disinfection.
- a temperature measurement is meaningful or expedient only if (sufficient) liquid is present, namely at least enough liquid that the temperature measuring device also contacts the liquid. Therefore, it is expedient if the temperature measuring device is adapted to detect the presence of liquid, and that the temperature is measured only in the presence of liquid.
- the temperature measuring device does not contact the liquid, the temperature of the air in the vessel would be measured, which may be lower. may be significantly higher than the temperature of the liquid. This would lead to a falsified result and in particular to an early indication of the desired disinfection time.
- the UV measuring device comprises at least one UV sensor.
- the device For supplying energy to the electrical components of the device, it may be provided that the device has one or more solar cells.
- the power supply can also be effected by means of a battery or preferably with a rechargeable battery, wherein the charging of the rechargeable battery can then take place by means of the solar cells.
- the UV measuring device comprises one or more solar cells.
- the solar cell (s) is preceded by a filter which passes through light only in the UV range, in particular only in the UV-A range or in the preferred measurement spectrum.
- the current supplied by the solar cells can then be used to deduce the UV intensity.
- the values for the UV intensity measured per unit time At are summed over the time t or the values of the UV intensity measured as a function of the time t are integrated over the time. It is thus practically the dose of UV radiation (eg in Ws / m 2 ) measured and continuously compared with a limit Ko, which limit defines a degree of disinfection at which the liquid (water) is drinkable.
- the values of the UV intensity measured before the time unit ⁇ t or as a function of the time t become the UV intensity before the summation or integration with the temperature T (At) measured per unit time At or the temperature T (t) measured as a function of the time t.
- the temperature can actually be measured and taken into account at any point in time t or each time unit ⁇ t at which the UV intensity is measured.
- the measurement of the temperature can also take place at relatively long intervals, since these generally do not vary as much as the UV intensity.
- the evaluation unit comprises a counter or a counter whose count per unit time At by a counter value which is proportional to the measured in this time unit At value for the UV intensity increases, and that the given characteristic value corresponds to a specific value for the meter reading.
- the counter value is multiplied by a temperature-dependent proportionality factor, which proportionality factor for a minimum temperature and temperature values below the minimum temperature takes the value 1, and for temperature values above the minimum temperature, a value dependent on the temperature greater than 1 assumes.
- a variant of the device is provided in that it has fastening means for releasably securing the device to the vessel.
- the attachment means are e.g. designed in the form of a screw, with which the device can be screwed over the opening of the vessel to this.
- the device comprises eyelets for fastening the device in the environment and / or on the vessel. In this way, a reliable loss and theft protection is given.
- the temperature measuring device is arranged on the device in such a way that the temperature measuring device projects at least partially into the liquid present in the vessel when the device is attached to the vessel.
- the temperature measuring device comprises at least one TC element (NTC resistor, "negative temperature coefficient”), which is cheap, robust, and easy to use and with which the temperature can be measured in a known manner via the measurement of the resistance.
- NTC resistor negative temperature coefficient
- FIG. 3a shows a device according to the invention according to FIG. 1 in a schematic, perspective representation before being fastened to a vessel filled with liquid
- FIG. 3b shows a device according to the invention according to FIG. 2 in a schematic, perspective view before being fastened to a vessel filled with liquid
- Fig. 4b shows the course of the germ reduction as a function of time at constant UV intensity and changing temperatures
- FIGS. 5a-5c show the course of the parameter K (t) as a function of time for different temperature scenarios.
- FIG. 1 shows a device 1 for determining the degree of disinfection (or the time of reaching a certain degree of disinfection) of a liquid, in particular drinking water, contained in a vessel 100 (FIG. 3a) which is transparent at least in a UV region.
- the vessel 100 is, for example, conventional PET bottles.
- the device comprises a UV measuring device 2 for measuring the intensity of the UV radiation in the region of the vessel 100 and an evaluation unit 3 to which the values for the UV intensity measured by the UV measuring device 2 are supplied.
- the evaluation unit 3 calculates the measured values for the UV intensity measured at the beginning of a measurement at a given time t to a parameter K, and compares the parameters K determined at certain times t with a predetermined characteristic K0, which predefined parameter Ko a defined disinfection level Liquid corresponds. If the desired degree of disinfection, which corresponds to the parameter Ko, is reached, then the device 1 emits signals via a signal output device 4, which signal the successful disinfection.
- the signal output device 4 may be of an acoustic nature or of an optical nature, e.g. a flashing or lit LED, or a display that shows the relevant information. Of course, a combination on one or more of these display means is possible.
- a power supply unit 10 is provided, e.g. a battery or a rechargeable battery or one or more solar cells 7 for generating electricity.
- a battery 10 is charged by the solar cells 7.
- the variant of the device shown has attachment means 9 for releasably securing the device to the vessel 100, these attachment means e.g. in the form of a screw 9 are formed as shown, with which the device over the opening of the vessel 100, for example, can be screwed to a bottleneck of this.
- the device comprises eyelets 11 for fastening the device in the environment and / or on the vessel. In this way, a reliable loss and theft protection is given.
- FIG. 3 a shows a push-button 6 for switching the device 1 on and off or for starting / stopping a measurement
- FIG. 2 and FIG. 3 b show a further variant of the device 1 which has an essentially identical structure to the device of FIG. 1 and FIG. 3 a and further comprises a temperature measuring device 5 for determining the temperature T of the liquid in the vessel 100. The determined temperature T of the liquid in the vessel 100 can then be taken into account in determining the parameter K.
- the temperature factor can be an important part of accelerating the disinfection. At temperatures above 40 ° C pathogens are already killed by the temperature alone. The temperature disinfection is independent of the UV radiation, but in combination a guarantee for an optimal disinfection.
- FIG. 4a The influence of the temperature on the germ reduction is shown in FIG. 4a.
- the line labeled “UV” shows the germ reduction as a function of time t, assuming a temperature which does not significantly contribute to the germ reduction, as indicated by "UV + Tl", “UV + T2" and “UV + T3" Curves represent the germ reduction as a function of time with the same UV intensity, but with increasing temperature.
- T3> 45 ° C significantly reduces compared to the other temperatures and in particular in the case without (for disinfection) significant temperature.
- a sufficient temperature can be achieved by a dark or reflective surface on which the water-filled PET bottles are stored for disinfection.
- a temperature measurement is meaningful or expedient only if (sufficient) liquid is present, namely at least enough liquid that the temperature measuring device also contacts the liquid. Therefore, it is expedient if the temperature measuring device 5 is adapted to detect the presence of liquid, and that the temperature is measured only in the presence of liquid.
- the temperature measuring device does not contact the liquid, the temperature of the air in the vessel would be measured, which may be lower. may be significantly higher than the temperature of the liquid. This would lead to a falsified result and in particular to an early indication of the desired disinfection time.
- the UV measuring device 2 comprises at least one UV sensor.
- the UV measuring device 2 comprises one or more solar cells.
- the solar cell (s) is preceded by a filter which transmits light only in the UV range, in particular only in the UV-A range or in the preferred measurement spectrum.
- the current supplied by the solar cells can then be used to deduce the UV intensity.
- UV measuring device 2 The use of solar cells can be a significantly cheaper solution than those with its own UV sensor. In principle, however, a combination of UV sensor 2 and solar cells 7, as shown in FIG. 3 a, is also conceivable for the UV measuring device 2.
- the values for the UV intensity measured per unit time (At) are summed over the time (t) or the values of the UV intensity measured as a function of the time (t) are integrated over time.
- the dose of UV radiation eg in Ws / m 2
- Ko for the dose
- Fig. 5a shows schematically a corresponding process, wherein a constant UV intensity is assumed and the influence of the temperature is not taken into account.
- K reaches the value Ko
- K (t0) Ko, which is the time at which the desired degree of disinfection is achieved and a signal is output from the device, which gives the user the successful disinfection signaled.
- the values of the UV intensity measured per unit time ⁇ t or as a function of the time t are preferably Summation or integration with the temperature T (At) measured per unit time At or the temperature T (t) measured as a function of the time t.
- FIG. 5b shows three different measurements at three different temperatures, with T1 ⁇ T2 ⁇ T3.
- the curve (straight line) K (t) increases steeply in accordance with a larger gradient and the value to for the disinfection is reached more quickly at a higher temperature.
- the weighting of the values for the UV intensity can also be realized by setting the value Ko by a value Ko * is replaced, which takes the temperature into account.
- the value Ko * (T3) would be correspondingly lower than that for eg Ko * (T2) or Ko * (Tl) and, of course, less than Ko.
- the temperature can actually be measured and taken into account at any point in time t or each time unit ⁇ t at which the UV intensity is measured.
- the measurement of the temperature can also take place at relatively long intervals, since these generally do not vary as much as the UV intensity.
- the evaluation unit 3 comprises a counter or a counter whose count per unit time At by a counter value which is proportional to the measured in this time unit At value for the UV intensity increases, and that the predetermined characteristic Ko corresponds to a specific value for the counter reading.
- the counter value is multiplied by a proportionality factor kT dependent on the temperature T, which proportionality factor for a minimum temperature Tmin and temperature values below the minimum temperature Tmin assumes 1, and for temperature values above the minimum temperature Tmin one of the Temperature dependent value greater than 1 assumes.
- kT 1 for T> 35 ° Celsius
- kT 1.1 in the range of 35 ° - 40 °
- kT 1,2 for 40 ° - 45 °
- T> 45 ° kT 1,3
- the temperature measuring device 5 is arranged on the device 1 in such a way that, when the device 1 is attached to the vessel 100, the temperature measuring device 5 projects at least partially into the liquid present in the vessel 100.
- the temperature measuring device 5 comprises at least one NTC element (NTC resistor, "negative temperature coefficient"), which is cheap, robust, and easy to use, and with which the temperature is measured in a known manner by measuring the resistance may,
- the evaluation unit 3 comprises a microprocessor and memory, which memory may be integrated into the processor.
- the memory is checked, and if data from a previous measurement is present, the measured data are read out and recalculated according to internal comparison data. If, for example, a measurement or a disinfection cycle has been aborted before reaching Ko, germs can again accumulate in the liquid. The measurement can therefore not be continued at the last value of K (t) but this enrichment must be taken into account accordingly, since the number of nuclei after a longer interruption of UV radiation increases again and the previous data must therefore be adjusted.
- Interruptions of the measurement can arise especially when the energy supply is exclusively via solar cells without intermediate buffering by means of a battery, for example at nightfall.
- the device 1 thus abstracts and continuously integrates sensor data of the radiation intensity, the irradiated UV dose and the temperature and compares these data with data from scientific studies in order to ensure a suitable germ stage reduction.
- the synergetic processes of UV-induced killing and thermal inactivation (dose- and time-dependent) with opposing processes by mechanisms of repair of the nuclei are considered.
- the characteristic value Ko can be determined correspondingly preferably or among other things from microbiological tests.
- the test setup includes, on the one hand, an irradiation unit, the measurement by means of a calibrated UV measuring instrument and the recording by a separate program. At the times indicated in the tables, a sample of the water was taken. Furthermore, in each test, a blank test was attempted with an equal prepared bottle which was not exposed to radiation. Table 1
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0031410A AT509363B1 (de) | 2010-03-01 | 2010-03-01 | Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeit |
PCT/AT2011/000083 WO2011106808A1 (de) | 2010-03-01 | 2011-02-17 | Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2542504A1 true EP2542504A1 (de) | 2013-01-09 |
Family
ID=44059090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11710399A Withdrawn EP2542504A1 (de) | 2010-03-01 | 2011-02-17 | Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeit |
Country Status (4)
Country | Link |
---|---|
US (2) | US9012861B2 (de) |
EP (1) | EP2542504A1 (de) |
AT (1) | AT509363B1 (de) |
WO (1) | WO2011106808A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2728285T3 (es) * | 2013-08-09 | 2019-10-23 | Fund Imdea Agua | Dispositivo de desinfección del agua y método para la desinfección solar del agua |
US9868651B2 (en) * | 2015-02-26 | 2018-01-16 | PotaVida, Inc. | Solar disinfection of fluid |
CN106395978A (zh) * | 2016-11-17 | 2017-02-15 | 佛山市云米电器科技有限公司 | 带加热和uv杀菌功能净水器的uv杀菌控制方法 |
WO2021148542A1 (en) * | 2020-01-24 | 2021-07-29 | Solarsack Aps | Water purification system for solar water disinfection |
CN114956403A (zh) * | 2021-12-16 | 2022-08-30 | 华北水利水电大学 | 一种城市设计的屋面雨水集水净化装置 |
CN116813020B (zh) * | 2023-06-21 | 2024-03-12 | 惠州市泓利实业有限公司 | 一种智能净水装置及其控制方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007021294A1 (en) * | 2005-08-12 | 2007-02-22 | Vitale Rodney P | An apparatus and method of using thermochromic and photochromic indicators |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH508217A (de) * | 1969-04-24 | 1971-05-31 | Polymetron Ag | Temperaturfühler an Leitfähigkeitsmesszellen |
US3650201A (en) * | 1969-09-03 | 1972-03-21 | Dragomir M Jovanovic | Tea and coffee brewer |
US4126783A (en) * | 1977-05-25 | 1978-11-21 | Butler-Newton, Inc. | Radiation imaging system |
FR2729382B1 (fr) * | 1995-01-16 | 1997-03-28 | Omnium Traitement Valorisa | Reacteur d'irradiation uv pour le traitement de liquides |
DE19908583C2 (de) * | 1998-03-05 | 2002-10-24 | Wedeco Uv Verfahrenstechnik Gm | Vorrichtung zur kontinuierlichen Ermittlung der UV-Transmission fließender oder strömender Medien |
US6514405B1 (en) | 1999-08-12 | 2003-02-04 | Eric L. Lifschitz | Portable water purifier with ultraviolet light source |
US6475433B2 (en) | 2000-02-01 | 2002-11-05 | Ebw Electronics, Inc. | Method and apparatus for verifying ultraviolet sterilization |
KR20030015279A (ko) * | 2000-06-16 | 2003-02-20 | 트로잰 테크놀로지스 인코포레이티드 | 광학 방사 센서 장치 및 유체의 방사선 투과율을 결정하는방법 |
US20020066874A1 (en) * | 2000-12-04 | 2002-06-06 | Anushka Drescher | UV transmittance meter |
US7169311B2 (en) * | 2001-10-17 | 2007-01-30 | Honeywell International, Inc. | Apparatus for disinfecting water using ultraviolet radiation |
US8044363B2 (en) * | 2007-04-30 | 2011-10-25 | Kimberly-Clark Worldwide, Inc. | UV detection devices and methods |
-
2010
- 2010-03-01 AT AT0031410A patent/AT509363B1/de active
-
2011
- 2011-02-17 EP EP11710399A patent/EP2542504A1/de not_active Withdrawn
- 2011-02-17 WO PCT/AT2011/000083 patent/WO2011106808A1/de active Application Filing
- 2011-02-17 US US13/581,328 patent/US9012861B2/en active Active
-
2015
- 2015-04-17 US US14/689,072 patent/US9383257B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007021294A1 (en) * | 2005-08-12 | 2007-02-22 | Vitale Rodney P | An apparatus and method of using thermochromic and photochromic indicators |
Also Published As
Publication number | Publication date |
---|---|
US20120318997A1 (en) | 2012-12-20 |
WO2011106808A1 (de) | 2011-09-09 |
US9012861B2 (en) | 2015-04-21 |
US9383257B2 (en) | 2016-07-05 |
AT509363B1 (de) | 2011-12-15 |
US20150253184A1 (en) | 2015-09-10 |
AT509363A1 (de) | 2011-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT509363B1 (de) | Vorrichtung und verfahren zum ermitteln des desinfektionsgrades einer flüssigkeit | |
Zhu et al. | Effects of warming, grazing/cutting and nitrogen fertilization on greenhouse gas fluxes during growing seasons in an alpine meadow on the Tibetan Plateau | |
Turner et al. | Differential rearing effects on rat visual cortex synapses. I. Synaptic and neuronal density and synapses per neuron | |
Kim et al. | Transient impairment of hippocampus-dependent learning and memory in relatively low-dose of acute radiation syndrome is associated with inhibition of hippocampal neurogenesis | |
Risner et al. | Behavioral spectral sensitivity of the zebrafish (Danio rerio) | |
DE3739966A1 (de) | Vorrichtung zur desinfektion von wasser durch uv-bestrahlung | |
Africa et al. | Automated aquaculture system that regulates Ph, temperature and ammonia | |
EP2521572A1 (de) | Verfahren und vorrichtung zur messung der abtötenden wirksamkeit eines entkeimungsmittels | |
DE3740005A1 (de) | Vorrichtung zur desinfektion von abwasser | |
EP0545887A1 (de) | Ein transportables Messgerät zur Erfassung der UV-Strahlendosis als Schutz vor gesundheitlichen Schädigungen der Haut | |
WO2015197255A1 (de) | Einrichtung und ein verfahren zum überwachen des hygienischen status einer trinkwasser-installation | |
Rainey et al. | Drinking water quality and solar disinfection: effectiveness in peri-urban households in Nepal | |
CN111559839A (zh) | 污水处理控制方法及应用其的医疗污水处理监控分析系统 | |
Portmann | Global estimation of monthly irrigated and rainfed crop areas on a 5 arc-minute grid | |
CN103143046A (zh) | 用于紫外消毒柜的智能监控系统 | |
DE10350053B4 (de) | Verfahren und Dosimeter zur qualitativen und/oder quantitativen Bestimmung von Strahlung in einem für Lebewesen psychisch wirksamen Wellenlängenbereich | |
AU2013408433A1 (en) | Method for monitoring excrement data | |
DE4419734A1 (de) | Verfahren und Atemgascontroller zur Ermittlung der Resteinsatzzeit von Atemschutzgeräten und Tauchgeräten | |
CN110240223A (zh) | 一种紫外消毒装置的控制方法、装置和系统 | |
Pak-Hashemi et al. | A Study of the Effects of Pistaciavera (Pistachio) Seed Oil on Working Memory as Well as Spatial Learning and Memory | |
De Medeiros et al. | Investigation of Fe and Ca in non-stimulated human saliva using NAA | |
Nicoll et al. | In vivo precision of total body calcium and sodium measurements by neutron activation analysis | |
Ahmad et al. | Accretion and dispersion of heavy metals in a vegetable grown in contaminated soil with sewage water: a matter of great concern and community health consequences | |
Wang | From greenhouse to field practice: herbicide resistance detection using chlorophyll-fluorescence-imaging technology | |
Littlejohn et al. | Light and temperature regulation of early morning crassulacean acid metabolism in Opuntia erinacea var columbiana (Griffiths) L. Benson |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120827 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HELIOZ RESEARCH & DEVELOPMENT GMBH |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WESIAN, MARTIN |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HELIOZ RESEARCH & DEVELOPMENT GMBH |
|
17Q | First examination report despatched |
Effective date: 20180606 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20201006 |