DE3739966A1 - Appliance for disinfecting water by UV irradiation - Google Patents
Appliance for disinfecting water by UV irradiationInfo
- Publication number
- DE3739966A1 DE3739966A1 DE19873739966 DE3739966A DE3739966A1 DE 3739966 A1 DE3739966 A1 DE 3739966A1 DE 19873739966 DE19873739966 DE 19873739966 DE 3739966 A DE3739966 A DE 3739966A DE 3739966 A1 DE3739966 A1 DE 3739966A1
- Authority
- DE
- Germany
- Prior art keywords
- radiation
- water
- irradiation
- effective
- dose
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 title claims abstract 5
- 230000000249 desinfective effect Effects 0.000 title claims abstract 3
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims description 37
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RWQNBRDOKXIBIV-UHFFFAOYSA-N thymine Chemical compound CC1=CNC(=O)NC1=O RWQNBRDOKXIBIV-UHFFFAOYSA-N 0.000 description 2
- 229930024421 Adenine Natural products 0.000 description 1
- GFFGJBXGBJISGV-UHFFFAOYSA-N Adenine Chemical compound NC1=NC=NC2=C1N=CN2 GFFGJBXGBJISGV-UHFFFAOYSA-N 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229960000643 adenine Drugs 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000721 bacterilogical effect Effects 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 235000003715 nutritional status Nutrition 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229940113082 thymine Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- 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
- C02F2201/326—Lamp control systems
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)
- Physical Water Treatments (AREA)
Abstract
Description
Die Qualität von Trinkwasser kann durch die Anwesen heit gelöster und ungelöster Wasserinhaltsstoffe unterschiedlich beeinflußt werden. Diese Wasserin haltsstoffe beeinträchtigen auch in unterschiedlichem Maße die Wirkung der UV-Bestrahlung zum Zwecke der Desinfektion.The quality of drinking water can be determined by the property dissolved and undissolved water constituents are influenced differently. This waterin Ingredients also affect in different ways Measure the effect of UV radiation for the purpose of Disinfection.
Die großtechnische Anwendung der UV-Bestrahlung zur Desinfektion von Wasser hat sich bisher deshalb noch nicht durchgesetzt, weil geeignete, einfache Meßeinrichtungen fehlen, mit denen die Wirksamkeit der UV-Bestrahlung nachgewiesen werden kann.The large-scale application of UV radiation has so far been used to disinfect water not yet enforced because suitable, simple Measuring devices are missing with which the effectiveness UV radiation can be detected.
Aktinometrische Messungen und andere chemische Ver fahren erfordern einen großen apparativen Aufwand. Die Feststellung der bakteriologischen Wirksamkeit durch Entnahme von Wasserproben, Bebrütung und Aus zählung der verbliebenen Reizkeimzahl bedingt einen Zeitaufwand von etwa 48 Stunden und ermöglicht damit keine unverzügliche Überprüfung der Wirksamkeit der UV-Bestrahlung.Actinometric measurements and other chemical ver driving require a lot of equipment. The determination of the bacteriological effectiveness by taking water samples, incubation and off counting the remaining number of stimuli requires one Time expenditure of about 48 hours and thus enables no immediate review of effectiveness UV radiation.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren sowie eine Vorrichtung zu schaffen, die es bei der Desinfektion von Wasser durch UV-Be strahlung gestatten, die wirksame Durchführung der UV-Bestrahlung sofort zu überprüfen. The invention is therefore based on the object to create a method and an apparatus which it is in the disinfection of water by UV-Be allow radiation to be carried out effectively Check UV radiation immediately.
Diese Aufgabe wird erfindungsgemäß durch die kenn zeichnenden Merkmale der Ansprüche 1 und 3 gelöst.This object is achieved by the kenn Drawing features of claims 1 and 3 solved.
Zweckmäßige Ausgestaltungen der Erfindung sind Gegen stand der Unteransprüche.Appropriate embodiments of the invention are opposed stood the subclaims.
Zur Erzielung einer ausreichenden Desinfektionslei stung ist es notwendig, die dem UV-Verfahren zugrunde liegenden Einflußgrößen zu kennen.To achieve a sufficient level of disinfection It is necessary to base the UV process knowing the influencing factors.
Die Desinfektionsleistung der UV-Strahlen wird durch das Einwirken einer UV-Mindestdosis auf den Mikroor ganismus erzielt.The disinfection performance of the UV rays is due to the action of a minimum UV dose on the microor Ganism achieved.
Die Art des Mikroorganismus, der physiologische Zu stand seiner Zellen sowie die Umgebungsfaktoren bestimmen seine UV-Empfindlichkeit. Zum Abtöten von Bakterien und Viren genügen im allgemeinen geringere Bestrahlungsdosen, als sie für Pilze und Hefen erfor derlich sind. Unterschiede im Ernährungszustand und in der Wachstumsphase machen sich ebenso bemerk bar wie unterschiedliche physikalische und chemische Parameter im Bestrahlungsmilieu.The type of microorganism, the physiological Zu stood its cells as well as the environmental factors determine its UV sensitivity. To kill Bacteria and viruses generally suffice less Irradiation doses as they are used for mushrooms and yeasts are such. Differences in nutritional status and in the growth phase make themselves felt as well bar like different physical and chemical Parameters in the radiation environment.
Die Inaktivierung der Mikroorganismen erfolgt durch photochemische Reaktionen mit den bakteriziden UV- C-Strahlen. Die Strahlen von 240 bis 280 nm werden von den Nucleinsäuren absorbiert. Es kommt dabei insbesondere zur Bildung von Dimeren, bevorzugt an den Thyminbasen. Diese Veränderung blockiert sofort die Bindungsmöglichkeit zu den Adeninbasen und macht eine weitere Zellvermehrung und damit den Stoffwechsel unmöglich. Die UV-Desinfektion erfordert daher nur eine kurze Kontaktzeit, wobei das desinfizierte Wasser sofort nach Verlassen der UV-Anlage ohne Nachbehandlung ablaufen kann.The microorganisms are deactivated by photochemical reactions with the bactericidal UV C rays. The rays will be from 240 to 280 nm absorbed by the nucleic acids. It happens especially preferred for the formation of dimers on the thymine bases. This change blocks immediately the possibility of binding to the adenine bases and does another cell proliferation and so on metabolism impossible. UV disinfection therefore requires only a short contact time, whereby the disinfected water immediately after leaving the UV system can run without post-treatment.
Die UV-Dosis ist die für die Desinfektion maßgebende physikalische Größe der UV-Bestrahlung. Sie ist das Produkt aus Bestrahlungsdauer und Bestrahlungs stärke.The UV dose is the decisive one for disinfection physical quantity of UV radiation. she is the product of radiation duration and radiation Strength.
Die Bestrahlungsdauer stellt die Expositionszeit der Wasserinhaltsstoffe am Strahler dar und wird durch die Durchflußgeschwindigkeit und die Geometrie in der Strahlungskammer beeinflußt. Dabei muß gewähr leistet werden, daß die maximale Durchflußgeschwin digkeit nicht überschritten wird, damit die Bakterien ein genügende UV-Dosis erhalten.The radiation duration represents the exposure time of the water constituents on the radiator through the flow rate and the geometry influenced in the radiation chamber. It must guarantee be achieved that the maximum flow rate not exceed the bacteria receive a sufficient UV dose.
Die Bestrahlungsstärke als zweite Einflußgröße der UV-Bestrahlungsdosis ist der Quotient der auf eine Fläche auftreffenden Strahlungsleistung und dieser Fläche. Maßgebend für die Bestrahlungsstärke ist die UV-C-Leistung des Strahlers, die z. B. bei Queck silber-Niederdruckstrahlern ca. 40% der elektischen Leistungsaufnahme des Strahlers beträgt. Höhere Stromaufnahmen der Strahler und schwankenden Fließge schwindigkeiten führen schon bei Trinkwasser mit höheren Härtegraden zur Belagsbildung auf den Quarz schutzrohren.The irradiance as the second influencing variable of the UV radiation dose is the quotient of one Area incident radiation power and this Area. The decisive factor for the irradiance is the UV-C power of the lamp, the z. B. at Queck silver low pressure lamps approx. 40% of the electrical ones Power consumption of the radiator is. Higher Current consumption of the spotlights and fluctuating flow dizziness is already present in drinking water higher degrees of hardness for depositing on the quartz protection tubes.
Erfindungsgemäß wird somit die wirksame Bestrahlungs stärke sowie die Durchflußgeschwindigkeit des Wassers durch die UV-Bestrahlungszone gemessen und aus beiden Meßwerten ein Signal ermittelt, das der UV-Dosis entspricht und das zur Anzeige gebracht und/oder zur Steuerung von Wasserdurchfluß und/oder wirksamer UV-Bestrahlungsleistung verwendet wird. According to the invention, the effective radiation strength and the flow rate of the water measured by the UV radiation zone and from both Measured values determined a signal that the UV dose corresponds and displayed and / or to control water flow and / or more effectively UV radiation power is used.
Damit wird verhindert, daß infolge verringerter Transmission (Trübung oder Absorption) des Wassers, Belagsbildung auf dem Quarzschutzrohr und kleinerer Strahlerleistung due UV-Bestrahlungsstärke so weit absinkt, daß in Abhängigkeit der Durchflußge schwindigkeit die UV-Dosis zu gering und das Wasser nicht mehr ausreichend desinfiziert wird.This prevents that due to reduced Transmission (turbidity or absorption) of water, Deposit formation on the quartz protective tube and smaller Lamp output due to UV irradiance so far that depending on the Durchflußge the UV dose is too low and the water is no longer sufficiently disinfected.
Die Strahlerleistung ist abhängig von der Strahler nutzungsdauer. Nach der vom Hersteller garantierten Nutzungsdauer ist die zur Erreichung der Mindestdosis erforderliche Bestrahlungsstärke unterschritten und der Strahler muß ausgetauscht werden.The lamp power depends on the lamp useful life. According to the one guaranteed by the manufacturer The service life is the time required to reach the minimum dose the irradiance is below the required level and the radiator must be replaced.
Die Transmission des Wasser ist definiert als das Verhältnis von durchgelassener Strahlungsleistung zur auffallenden Strahlungsleistung.The transmission of water is defined as that Ratio of transmitted radiation power to the striking radiation power.
Die Annahme, daß die UV-Bestrahlung nur in klarem Wasser wirksam ist, trifft nur teilweise zu. Richtig ist, daß gelöste Stoffe, wie z. B. organischer Verbin dungen und Salze, eine Abnahme der Strahlungsstärke durch Absorption bewirken.The assumption that UV radiation is only clear Water is only partially effective. Correct is that solutes, such as. B. organic verb doses and salts, a decrease in radiation intensity by absorption.
Suspendierte Partikel absorbieren jedoch im Gegensatz zu den gelösten Stoffen die auf die Teilchen auftref fende UV-Strahlung nur zum Teil. Der wesentliche Teil des UV-Lichtes wird von den Partikeln gestreut und geht so für die Keimreduktion nicht verloren. Deshalb werden bei trübem Wasser erheblich bessere Keimreduktionen erzielt, als dies aufgrund der reinen Transmissionsmessung zu erwarten ist. In contrast, suspended particles absorb in contrast to the solutes that hit the particles UV radiation only partially. The essential Part of the UV light is scattered by the particles and is not lost for the germ reduction. Therefore, cloudy water will be significantly better Germ reduction achieved as a result of the pure Transmission measurement is to be expected.
Die im Markt befindlichen Überwachungsgeräte verwen den nur einen Photosensor für die Messung der Be strahlungsstärke, nicht aber gleichzeitig ein Durch flußmeßgerät, so daß nicht die wirksame UV-Dosis gemessen werden kann.Use the monitoring devices on the market the only one photosensor for measuring the loading radiance, but not a through at the same time flow meter so that not the effective UV dose can be measured.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung veranschaulicht.An embodiment of the invention is in the Illustrated drawing.
Die dargestellte Anlage zur Desinfektion von Wasser durch UV-Bestrahlung enthält eine vom Wasser durch strömte Bestrahlungskammer (Fließrichtung gemäß Pfeil 1).The system shown for the disinfection of water by UV radiation contains an irradiation chamber through which water flows (flow direction according to arrow 1 ).
In dieser Bestrahlungskammer (4) ist wenigestens ein UV-Strahler (5) angeordnet, der von einem Quarz schutzrohr (5 a) umhüllt ist. Die Anordnung weiterer Strahler ist beliebig. Der Anschluß des UV-Strahlers (5) erfolgt beliebig über elektrische Zuleitung (6), die zur Bestrahlungskammer abgedeckt oder abge dichtet ist.In this radiation chamber ( 4 ) at least one UV lamp ( 5 ) is arranged, which is enveloped by a quartz protective tube ( 5 a) . The arrangement of further emitters is arbitrary. The UV lamp ( 5 ) is connected as desired via an electrical feed line ( 6 ) which is covered or sealed to the radiation chamber.
In der Wand (8), die die UV-Bestrahlungskammer (4) umschließt, ist wenigstens ein Photosensor (9) ange ordnet, der die wirksame Bestrahlungsstärke mißt. Dieser Photosensor (9) erfaßt damit die von einem oder mehreren UV-Strahlern abgegebene Strahlung, und zwar entweder direkt oder indirekt über Spiegel. Der Photosensor (9) berücksichtigt dabei die jewei lige Situation, die sich aus der Leistung des Strah lers, einer etwaigen Belagbildung auf dem Quarz schutzrohr (5) und der Transmission des Wassers ergibt. In the wall ( 8 ) which surrounds the UV radiation chamber ( 4 ), at least one photosensor ( 9 ) is arranged, which measures the effective irradiance. This photosensor ( 9 ) thus detects the radiation emitted by one or more UV emitters, either directly or indirectly via mirrors. The photosensor ( 9 ) takes into account the respective situation, which results from the performance of the radiator, any build-up on the quartz protective tube ( 5 ) and the transmission of the water.
In der Rohrleitung (2) ist ferner ein Durchflußmen genmeßgerät (10) angeordnet, das die Durchflußge schwindigkeit des Wassers (und damit die Durchfluß menge pro Zeiteinheit) ermittelt. Für dieses Durch flußmengenmeßgerät (10) können die verschiedensten handelsüblichen Durchflußmeßgeräte eingesetzt werden, jedoch aus spezielle magnetische, mechanische oder auf Ultraschallbasis arbeitende Geräte. Das Durch flußmengenmeßgerät kann dabei wahlweise auf der Zulauf- oder Auslaufseite der UV-Bestrahlungszone angeordnet werden.In the pipeline ( 2 ) a Durchflußmen genmeßgerät ( 10 ) is also arranged, which determines the Durchflußge speed of the water (and thus the flow rate per unit of time). For this flow meter ( 10 ), a wide variety of commercially available flow meters can be used, but from special magnetic, mechanical or ultrasonic devices. The flow meter can be arranged either on the inlet or outlet side of the UV radiation zone.
Die Meßsignale des Photosensors (9) und des Durch flußmengenmeßgerätes (10) werden einem Mikroprozessor (11) zugeführt, der unter Verwendung einer geeigneten Software aus den beiden Meßwerten ein der UV-Dosis entsprechendes Signal ermittelt. Dieses Signal kann beispielsweise in der Einheit mJ/cm2 oder einer geeigneten anderen Einheit auf einem Anzeigeinstru ment (12) zur Anzeige gebracht und/oder einem Schrei ber (13) zugeführt werden.The measurement signals of the photosensor ( 9 ) and the flow meter ( 10 ) are fed to a microprocessor ( 11 ) which, using suitable software, determines a signal corresponding to the UV dose from the two measured values. This signal can, for example, be displayed in the unit mJ / cm 2 or a suitable other unit on a display element ( 12 ) and / or be fed to a recorder ( 13 ).
Der Mikroprozessor (11) kann ferner weitere Steuer signale (Leitung 14) abgeben, durch die bei Unter schreiten eines Mindestwertes der UV-Dosis der Was serdurchfluß mittels Absperrschieber (15) geschlossen wird, damit nicht ungenügend bestrahltes Wasser, dem eine zu geringe Desinfektionsleistung abgegeben wurde, zum Verbraucher gelangt. The microprocessor ( 11 ) can also give further control signals (line 14 ) through which when the minimum UV dose falls below what the water flow is closed by means of a slide valve ( 15 ), so that insufficiently irradiated water, which is given too little disinfection has reached the consumer.
Weiterhin können durch diese vom Mikroprozessor (11) abgegebenen Steuersignale elektrische Schaltein richtungen gesteuert werden, die die Anzahl der eingeschalteten UV-Strahler verringern oder vergrö ßern, um die UV-Dosis dem tatsächlichen Bedarf anzu passen und eine Überdosierung zu vermeiden.Furthermore, by means of these control signals emitted by the microprocessor ( 11 ), electrical switching devices can be controlled which reduce or enlarge the number of UV lamps switched on in order to adapt the UV dose to the actual need and to avoid overdosing.
Ebenfalls können die Steuersignale dazu verwendet werden, mittels eines motorisch angetriebenen Ab sperrschiebers (15) die Durchflußgeschwindigkeit so zu verringern, daß bei maximaler Strahlereinschal tung trotz der verschlechterten Wasserqualität noch eine ausreichende UV-Dosis zur Desinfektion abgegeben wird, ohne daß der Durchfluß ganz gesperrt wird.The control signals can also be used to reduce the flow rate by means of a motor-driven slide valve ( 15 ) so that a sufficient UV dose for disinfection is emitted at maximum lamp switching in spite of the deteriorated water quality, without the flow being completely blocked .
Claims (4)
- a) eine erste Einrichtung (9) zur Messung der wirksamen Bestrahlungsstärke,
- b) eine zweite Einrichtung (10) zur Messung der Durchflußgeschwindigkeit des Wassers durch die UV-Bestrahlungszone (4),
- c) einen Mikroprozessor (11), der aus den von den beiden Einrichtungen (9, 10) gelieferten Meßwerten ein der UV-Dosis entsprechendes Signal ermittelt,
- d) an den Mikroprozessor (11) angeschlossene Anzeige- und/oder Steuereinrichtungen zur Anzeige der eingesetzten UV-Dosis und/oder zur Steuerung des Wasserdurchflusses und/oder der wirksamen UV-Bestrahlungsleistung.
- a) a first device ( 9 ) for measuring the effective irradiance,
- b) a second device ( 10 ) for measuring the flow rate of the water through the UV radiation zone ( 4 ),
- c) a microprocessor ( 11 ) which determines a signal corresponding to the UV dose from the measured values supplied by the two devices ( 9, 10 ),
- d) to the microprocessor ( 11 ) connected display and / or control devices for displaying the UV dose used and / or for controlling the water flow and / or the effective UV radiation power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873739966 DE3739966A1 (en) | 1987-11-25 | 1987-11-25 | Appliance for disinfecting water by UV irradiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873739966 DE3739966A1 (en) | 1987-11-25 | 1987-11-25 | Appliance for disinfecting water by UV irradiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3739966A1 true DE3739966A1 (en) | 1989-06-08 |
Family
ID=6341255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873739966 Withdrawn DE3739966A1 (en) | 1987-11-25 | 1987-11-25 | Appliance for disinfecting water by UV irradiation |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3739966A1 (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828185A1 (en) * | 1988-08-19 | 1990-02-22 | Franz Boehnensieker | Method and device for the germicidal treatment of aqueous or granular goods |
| DE4000369A1 (en) * | 1990-01-09 | 1991-07-11 | Layer & Knoedler Abwassertechn | METHOD AND DEVICE FOR WATER TREATMENT |
| AT395414B (en) * | 1990-10-30 | 1992-12-28 | Joklik Otto | Apparatus for sterilizing drinking water |
| US5324423A (en) * | 1993-02-11 | 1994-06-28 | Amway Corporation | UV bulb intensity control for water treatment system |
| US5368826A (en) * | 1992-12-04 | 1994-11-29 | Infilco Degremont, Inc. | Control apparatus for fluid disinfection modules and systems |
| WO1995009814A1 (en) * | 1993-10-06 | 1995-04-13 | Water Recovery Plc | Uv apparatus for fluid treatment |
| WO1996009249A1 (en) * | 1994-09-19 | 1996-03-28 | Louis Szabo | Water decontamination system with dimmer-controlled ultraviolet lamp |
| US5567616A (en) * | 1994-03-07 | 1996-10-22 | Dill Instruments | Apparatus for supporting and driving a rotating cylinder |
| US5698091A (en) | 1993-03-22 | 1997-12-16 | Amway Corporation | Home water purification system with filter end of life monitor |
| DE19708147A1 (en) * | 1997-02-28 | 1998-09-03 | Umex Ges Fuer Umweltberatung U | UV irradiation arrangement for small sample |
| DE19824423A1 (en) * | 1998-05-30 | 1999-12-02 | Hansa Metallwerke Ag | Circuit arrangement for operating a UV lamp in a sterilization reactor |
| WO2000068152A1 (en) * | 1999-05-05 | 2000-11-16 | Milton Paul Pinel | Method and apparatus for fluid treatment by uv-radiation |
| JP2001054579A (en) * | 1999-07-09 | 2001-02-27 | Therakos Inc | Method and system for deciding effective amount of light energy to be supplied to fluid having desired object corresponding to light energy |
| WO2001083385A2 (en) * | 2000-04-28 | 2001-11-08 | Atlantium Ltd. | Devices and method for production of traceable immunizing drinking water, other liquids and gas |
| EP1463931A2 (en) * | 2001-01-08 | 2004-10-06 | Christopher R. Schulz | Flow-through chemical actinometer for ultraviolet disinfection reactors |
| WO2008050349A2 (en) | 2006-10-26 | 2008-05-02 | Atlantium Technologies Ltd. | System and method for monitoring water transmission of uv light in disinfection systems |
| WO2011039687A1 (en) * | 2009-09-29 | 2011-04-07 | Koninklijke Philips Electronics N.V. | Sensing uv dosage of a fluid stream |
| EP2338838A1 (en) * | 2009-12-22 | 2011-06-29 | Kabushiki Kaisha Toshiba | Ultraviolet irradiation system |
| US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
| US8709261B2 (en) | 2006-10-26 | 2014-04-29 | Atlantium Technologies Ltd. | System and method for monitoring water transmission of UV light in disinfection systems |
| EP3323433A1 (en) * | 2016-11-17 | 2018-05-23 | Hytecon AG | Method and device for monitoring a uv disinfecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828185A1 (en) * | 1988-08-19 | 1990-02-22 | Franz Boehnensieker | Method and device for the germicidal treatment of aqueous or granular goods |
| DE4000369A1 (en) * | 1990-01-09 | 1991-07-11 | Layer & Knoedler Abwassertechn | METHOD AND DEVICE FOR WATER TREATMENT |
| AT395414B (en) * | 1990-10-30 | 1992-12-28 | Joklik Otto | Apparatus for sterilizing drinking water |
| US5368826A (en) * | 1992-12-04 | 1994-11-29 | Infilco Degremont, Inc. | Control apparatus for fluid disinfection modules and systems |
| US5324423A (en) * | 1993-02-11 | 1994-06-28 | Amway Corporation | UV bulb intensity control for water treatment system |
| EP0611153A2 (en) * | 1993-02-11 | 1994-08-17 | Amway Corporation | UV bulb intensity control for water treatment system |
| EP0611153A3 (en) * | 1993-02-11 | 1995-04-05 | Amway Corp | UV bulb intensity control for water treatment system. |
| US5698091A (en) | 1993-03-22 | 1997-12-16 | Amway Corporation | Home water purification system with filter end of life monitor |
| WO1995009814A1 (en) * | 1993-10-06 | 1995-04-13 | Water Recovery Plc | Uv apparatus for fluid treatment |
| AU687448B2 (en) * | 1993-10-06 | 1998-02-26 | Safe Water Solutions Llc | UV apparatus for fluid treatment |
| WO1999006529A1 (en) * | 1994-03-07 | 1999-02-11 | Dill Instruments, Inc. | Apparatus for supporting and driving a rotating cylinder |
| US5567616A (en) * | 1994-03-07 | 1996-10-22 | Dill Instruments | Apparatus for supporting and driving a rotating cylinder |
| WO1996009249A1 (en) * | 1994-09-19 | 1996-03-28 | Louis Szabo | Water decontamination system with dimmer-controlled ultraviolet lamp |
| DE19708147A1 (en) * | 1997-02-28 | 1998-09-03 | Umex Ges Fuer Umweltberatung U | UV irradiation arrangement for small sample |
| DE19824423A1 (en) * | 1998-05-30 | 1999-12-02 | Hansa Metallwerke Ag | Circuit arrangement for operating a UV lamp in a sterilization reactor |
| WO2000068152A1 (en) * | 1999-05-05 | 2000-11-16 | Milton Paul Pinel | Method and apparatus for fluid treatment by uv-radiation |
| JP2001054579A (en) * | 1999-07-09 | 2001-02-27 | Therakos Inc | Method and system for deciding effective amount of light energy to be supplied to fluid having desired object corresponding to light energy |
| EP1066842A3 (en) * | 1999-07-09 | 2002-07-17 | Therakos, Inc. | Method and system for determining an effective amount of energy to deliver to fluids in phototherapy |
| EP1754497A1 (en) * | 1999-07-09 | 2007-02-21 | Therakos, Inc. | Method and system for determining an effective amount of energy to deliver to fluids in phototherapy |
| CZ302538B6 (en) * | 1999-07-09 | 2011-07-07 | Therakos, Inc. | System for determining a fluid light energy value for delivery to a biological fluid comprising targets |
| WO2001083385A3 (en) * | 2000-04-28 | 2002-02-28 | Atlantium Ltd | Devices and method for production of traceable immunizing drinking water, other liquids and gas |
| WO2001083385A2 (en) * | 2000-04-28 | 2001-11-08 | Atlantium Ltd. | Devices and method for production of traceable immunizing drinking water, other liquids and gas |
| EP1463931A2 (en) * | 2001-01-08 | 2004-10-06 | Christopher R. Schulz | Flow-through chemical actinometer for ultraviolet disinfection reactors |
| EP1463931A4 (en) * | 2001-01-08 | 2006-08-16 | Christopher R Schulz | Flow-through chemical actinometer for ultraviolet disinfection reactors |
| WO2008050349A2 (en) | 2006-10-26 | 2008-05-02 | Atlantium Technologies Ltd. | System and method for monitoring water transmission of uv light in disinfection systems |
| EP2091870A2 (en) * | 2006-10-26 | 2009-08-26 | Atlantium Technologies Ltd. | System and method for monitoring water transmission of uv light in disinfection systems |
| US8709261B2 (en) | 2006-10-26 | 2014-04-29 | Atlantium Technologies Ltd. | System and method for monitoring water transmission of UV light in disinfection systems |
| EP2091870A4 (en) * | 2006-10-26 | 2012-05-30 | Atlantium Technologies Ltd | System and method for monitoring water transmission of uv light in disinfection systems |
| US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
| WO2011039687A1 (en) * | 2009-09-29 | 2011-04-07 | Koninklijke Philips Electronics N.V. | Sensing uv dosage of a fluid stream |
| US8546766B2 (en) | 2009-09-29 | 2013-10-01 | Koninklijke Philips N.V. | Sensing UV dosage of a fluid stream |
| CN102549401A (en) * | 2009-09-29 | 2012-07-04 | 皇家飞利浦电子股份有限公司 | Sensing UV dosage of a fluid stream |
| US8552395B2 (en) | 2009-12-22 | 2013-10-08 | Kabushiki Kaisha Toshiba | Ultraviolet irradiation system |
| EP2338838A1 (en) * | 2009-12-22 | 2011-06-29 | Kabushiki Kaisha Toshiba | Ultraviolet irradiation system |
| EP3323433A1 (en) * | 2016-11-17 | 2018-05-23 | Hytecon AG | Method and device for monitoring a uv disinfecting system |
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