WO2003002463A1 - Method and apparatus for water purification by uvc-irradiation - Google Patents
Method and apparatus for water purification by uvc-irradiation Download PDFInfo
- Publication number
- WO2003002463A1 WO2003002463A1 PCT/HU2002/000059 HU0200059W WO03002463A1 WO 2003002463 A1 WO2003002463 A1 WO 2003002463A1 HU 0200059 W HU0200059 W HU 0200059W WO 03002463 A1 WO03002463 A1 WO 03002463A1
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- WO
- WIPO (PCT)
- Prior art keywords
- water
- opening
- light
- source
- coupled
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000746 purification Methods 0.000 title description 3
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 39
- 230000005855 radiation Effects 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000000249 desinfective effect Effects 0.000 description 8
- 244000005700 microbiome Species 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 241000700605 Viruses Species 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000037338 UVA radiation Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- XQFRJNBWHJMXHO-RRKCRQDMSA-N IDUR Chemical compound C1[C@H](O)[C@@H](CO)O[C@H]1N1C(=O)NC(=O)C(I)=C1 XQFRJNBWHJMXHO-RRKCRQDMSA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 206010068319 Oropharyngeal pain Diseases 0.000 description 1
- 201000007100 Pharyngitis Diseases 0.000 description 1
- 201000004681 Psoriasis Diseases 0.000 description 1
- 241000235070 Saccharomyces Species 0.000 description 1
- 229930003316 Vitamin D Natural products 0.000 description 1
- QYSXJUFSXHHAJI-XFEUOLMDSA-N Vitamin D3 Natural products C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C/C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-XFEUOLMDSA-N 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000019522 cellular metabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 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
- 230000000414 obstructive effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 235000019166 vitamin D Nutrition 0.000 description 1
- 239000011710 vitamin D Substances 0.000 description 1
- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 229940046008 vitamin d 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Definitions
- the invention relates to an apparatus for purifying water having an inlet for inflow of water and an outlet for outflow of water, the apparatus consists of at least one subassembly comprising of a housing and a light-source producing UVC light, the housing is provided with a first opening for inflow of water and a second opening for outflow of water and a third opening for introducing power supply for the light-source, and the water to be purified is directed through the subassembly in pipes preferably by means of a pump.
- the invention further relates to a method for purifying water using the apparatus, in which method the water to be purified is directed through a space illuminated by a UVC light-source.
- UV radiation due to UV (ultra-violet) radiation being in the spectrum of solar rays has an obstructive effect on infection.
- UV radiation can be divided into the following three parts. UVA radiation which reaches the surface of the Earth as a part of solar radiation. It causes different photochemical processes, its embrowning effect is perceptible, but does not burn the skin. Its sphere of application is cosmetic industry. UVA radiation permeates through glass. UVB rays have embrowning, pigmentary effect and contribute to formation of vitamin D in our organism. This radiation is used for therapeutic radiation treatment. Its intensity is lower at sea level than in high mountains. This explains the fact that the same amount of solar radiation in the mountains will cause more powerful browning.
- UVC short-wave radiation covers the biggest part of UV radiation. It has strong antiseptic, bactericidal effect. This wave-length is absorbed by cell-building materials which are shattered at the same time. Researches have proved that bactericidal effect is attributable to that part (UVC part) of solar radiation which has a wave-length under 320 nm, and which kills viruses, bacteria, micro-organisms, saccharomyces. In 1878 it was discovered by Downes and Blunt that growth of micro-organisms can be stopped entirely as a result of solar radiation.
- German patent application DE 19803073 describes a unit for disinfecting of water which is based on an UV lamp surrounded by a filter preventing radiation of UVC rays.
- Patent application GB 2260132 describes a water treatment apparatus in which a channel is provided for flow of water and water is subjected to UVC radiation while flowing through the channel.
- WO 9736825 describes a method and apparatus, including combined pre-and post- purification, for the purpose of providing a finally purified water which is O3 influenced, free from micro-organisms, free from colorants. Water is subjected to a very intense and time optimized UVC irradiation.
- contaminated water is directed under an appropriate pressure to a pre-chamber comprising one or more UVC sources for the production and dosage of O 3 , the O -containing water is passed to one or more particle filters adapted for removing particles, micro-organisms and colorants from the water, and the basically processed water is passed along a plurality of guiding means having intermediate further UVC sources for prolongation of the flowpath of the water and further UVC irradiation.
- None of the known solutions utilises the purifying and disinfecting effect of ozone producible from air by means of UVC irradiation.
- the inventors have realised that if air is also illuminated by UVC light while illuminating water, and this air is led into the water, then purifying and disinfecting effect can be increased, and ozone getting into the water enters into reaction with contaminants and it can be removed easily as solid contamination.
- the aim of the present invention is to provide an apparatus for purifying water having an inlet for inflow of water and an outlet for outflow of water, the apparatus consists of at least one subassembly comprising of a housing and a light-source producing UVC light, the housing is provided with a first opening for inflow of water and a second opening for outflow of water and a third opening for introducing power supply for the light-source, and the water to be purified is directed through the subassembly in pipes preferably by means of a suction pump.
- the light-source is surrounded by a casing which is adapted for transmission of UVC light and which is provided with an aperture-in and an aperture-out for making airflow possible around the light-source
- the housing is provided with an air inlet and an air outlet.
- the air inlet of the housing and the aperture-in of the casing as well as the air outlet and the aperture-out of the casing are at least partially overlapped.
- an ozone pump is coupled between the second opening and/or first opening and the aperture-out.
- several subassemblies are coupled parallel to each other, so that their second openings as well as their first openings are coupled to each other respectively, or several subassemblies are coupled series to each other, so that a second opening of a subassembly being more forward with respect to flow of water is coupled to the first opening of a following subassembly.
- air outlets of the subassemblies are in communication with the inlets of the ozone pump, and outlet of the ozone pump is in communication with the second and/or the first opening.
- a suction pump is coupled between the outlet of the ozone pump and the second and/or the first opening.
- the outlet of the water purifying apparatus is directed into a filtering plant, for example a sand filter.
- the ozone pump is a blast-pipe, whose intake is coupled to the aperture- out of the casing, and whose outtake is installed in the pipe.
- An other aim of the present invention is to provide a method for purifying water, in which the aforementioned apparatus is utilized, during the method water to be purified is directed through a space illuminated by a UVC light-source.
- the UVC light-source is separated from the water by a casing which is adapted for transmission of UVC light, ozone originating in the air being between the light-source and the casing is introduced into the water to be purified either before or after illumination of the water.
- ozone is introduced into the water flowing in and/or flowing out by means of a blast-pipe.
- Figure 1 shows the side view of the subassembly, partly in cross-section.
- Figure 2 is a schematic view of the water purifying apparatus where several subassemblies are parallel coupled.
- FIG 3 is a schematic view of the water purifying apparatus where several subassemblies are series coupled, having an ozone suction pump coupled to its outlet.
- Figure 4 is a schematic view of the water purifying apparatus where several subassemblies are series coupled, having an ozone suction pump coupled to its inlet.
- Figure 5 shows a water purifying apparatus provided with a tank and filtering system.
- Figure 6 is a schematic view of one embodiment of the water purifying apparatus.
- Water purifying apparatus 1 according to the invention can be connected to water- supply systems being under overpressure (e.g. water conduit, reservoirs, etc.) or to water systems being under atmospheric pressure (basins, wells, etc.) by means of inlet 2 and outlet 3 which serve for inflow of water and outflow of water respectively.
- overpressure e.g. water conduit, reservoirs, etc.
- basic pressure basins, wells, etc.
- Water purifying apparatus 1 consists of one or more subassemblies 6.
- Subassembly 6 is made up of a housing 4 and a light-source 5 producing UVC light.
- the housing 4 is provided with a first opening 7 for inflow of water and a second opening 8 for outflow of water and a third opening 9 for introducing feeder 35 for the light-source.
- Third opening 9 through which feeder 35 of light-source 5 is introduced is sealed with a stuffing box 10.
- Water to be purified is directed through the subassembly 6 in pipes 11 preferably by means of a suction pump 33.
- Light-source 5 in subassembly 6 is surrounded by a casing 15.
- the material of casing 15 is adapted for transmission of UVC light (e.g. quartz casing).
- casing 15 exceeds the overall measurement of light- source 5 to such an extent that free flow of air is made possible.
- Casing 15 has an aperture-in 13 and an aperture-out 14, actually it is shaped as a simple tube.
- Casing 15 is placed in housing 4 having an air inlet 16 and an air outlet 17, in a manner that aperture-in 13 at ( least partially overlaps air inlet 16, and air outlet 17 at least partially overlaps aperture-out 14.
- Casing 15 is isolated from water by means of a gasket ring 27 which fits into edge 26 and onto casing 15. When subassembly 6 is not placed in delivery conduit, then gasket ring 27 must be installed inversely or, preferably a pair of gasket rings 27 must be placed in edge 26 opposite to each other.
- Housing 4 is sealed with gasket lock 25 and cap 24, which are made waterproof by means of O-rings 19.
- Gasket lock 25 and cap 24 can have threaded joints in order to make replacement of light-source possible when necessary ( Figure 1). In this manner light-source 5 can be changed without dewatering subassembly 6 or water purifying apparatus 1.
- Water flows to inlet 2, and inlet 2 or second opening 8 is coupled to the first opening 7, or in another case, first openings 7 are coupled to each other and to inlet 2 by means of pipe 1 1.
- Second opening 8 is coupled to outlet 3 or first opening 7, or second openings 8 are coupled to each other and to outlet 3 also by means of pipe 11.
- Ozone-pipe 28 is coupled between air outlet 17 and ozone pump 18 or blast-pipe 21.
- ozone pump 18 is applied for example for connecting air outlets 17 of several subassemblies 6, then also, ozone-pipe 28 is installed between outlet of ozone pump 18 and ozone suction pump 12.
- a simple embodiment of ozone suction pump 12 implemented as a blast-pipe 21 is shown in Figure 6. Ozoniferous air is transferred to blast-pipe ' 21 through intake 22, and due to the water flowing before outtake 23, this air leaves through outtake 23 and gets mixed up with the water.
- blast-pipe 21 can be provided with more than one intake 22 and outtake 23 respectively. This is not shown in the drawings. Via air inlet 16 air flows into the system through ozone pump 18 or blast-pipe 21 due to the suction effect of the flowing water. Generally, it is not necessary to connect ozone-pipe 28 to this inlet, because it has direct contact with the air. For whatever reason air flow is hindered at this point, the pipe being in direct contact with the air can be connected also to air inlet in a suitable manner. Implementing of this can not be a problem for those skilled in the art. In Figure 5 water purifying apparatus 1 is shown implemented with a tank 34 and a filtering plant 20 comprising a sand filter and an active carbon fine filter.
- cleaning of filtering plant 20 can be performed through sewage disposal 32 by opening valve 29.
- tank 34 and suction pump 33 one-way valves are installed for ensuring correct water flow.
- FIG 4 an embodiment of the water purifying apparatus 1 for example for purifying drinking water is shown to which a filtering plant 20 provided with a sand filter is coupled.
- Filtering plant 20 is further provided with purging valve 31 and sewage disposal 32 which can be opened and closed by means of valve 29.
- One-way valve 30 is installed between water purifying apparatus 1 and filtering plant 20.
- FIG 3 an embodiment of the water purifying apparatus 1 for example for purifying the water of a pool is shown to which active carbon filtering plant 20 is connected, and ozone suction pump 12 is installed between water purifying apparatus 1 and filtering plant 20.
- the method for purifying water according to the invention utilizes the apparatus according to the invention. During this method water to be purified is directed through a space being between the housing 4 and the casing 15 which is adapted for transmission of UVC light, the space is illuminated by UVC light-source 5. Ozone originating in the air being between the light-source 5 and the casing 15 is introduced into the water to be purified, for example by means of an ozone pump 18 or a blast-pipe 21 installed between air outlet 17 and the flowing water.
- Blast-pipe 21 or ozone pump 18 can be connected either to inlet 2 or outlet 3 of water purifying apparatus 1.
- Oxygen molecules of the air are transmuted due to UVC light-source 5 and a mixture of ozone' and air is injected into the flowing water by subassembly 6 of water purifying apparatus 1 consequently water is enriched with the mixture of ozone and air.
- This ozoniferous air mixture injected into the water dissolves and brings about an intensive oxidizing effect.
- filtering plant 20 installed following the water purifying apparatus 1 or its subassembly 6 filters out oxidized iron and other contaminants so that they can be removed. After disinfecting of water and filtering out contaminants, remaining ozone will again turn into oxygen in subassembly 6 due to UVC radiation.
- any number of subassemblies 6 may be coupled series or parallel, depending on the required amount of water, pressure and diameter.
- Water purifying apparatus according • to the invention is applicable in systems having a pressure up to 10 bars.
- Changing of the light-source 5 (20-160 W) is also very simple. After cutting off the current and loosening of the stuffing box, cap 24 can be unscrewed and light-source 5 can be pulled out from the housing 4.
- Feeder 35 can be pulled down from light-source 5 . by means of a socket being at the end of the feeder. Replacing of the new light-source 5 is performed in the same order, and after screwing back the cap 24 and stuffing box 10 the apparatus is again operable.
- the average working life of light-source 5 is generally 6-8000 hours.
- Ozone is an effective means for purifying air as well as drinking water arid bath water.
- Ozone used in due concentration is a safe and efficient cleaning agent without side effects. It has the advantage as opposed to other disinfectants that its decomposition product is oxygen. It does not only kill bacteria and viruses rapidly, but shatters and neutralizes a great part of toxic materials, consequently besides its disinfecting effect it is very suitable for detoxication, deodorization and decolourization.
- Ozone is an oxygen molecule of three atoms which excellently dissolves in water. Oxygen releasing from ozone molecule is a chemically active oxygen atom, which in its dissolved, state will directly provide the skin with active oxygen necessary for cell regeneration during metabolism of cells.
- Apparatus and method according to the invention can be applied to production of inodorous water free from bacteria, viruses and alga, since bacteria, viruses and protozoan organisms are killed.
- the apparatus and method according to the invention is applicable for disinfecting, sterilizing of water of mini waterworks, establishments, swimming pools and households, and for separating of dissolved metals and other contaminants, for example iron, manganese and arsenic. At the same time filtering out of contaminants becomes possible. It prevents swimming pools from growth of algae or it is suitable for destroying of algae. The fine dust of dead algae is filtered out by the sand filter, or if there is any left, it can be vacuumed. With the use of the apparatus and method according to the invention the use of chlorine and other chemicals that have been applied up to now becomes unnecessary.
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- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU0102625A HU0102625D0 (en) | 2001-06-27 | 2001-06-27 | Master's vvc device, combined application of vvc and ozone for the disinfection of water, the oxidation of metal and other pollutants |
HU0102624A HU0102624D0 (en) | 2001-06-27 | 2001-06-27 | Uvc and ozone aplication for oxidation and disinfecton |
HUP0102624 | 2001-06-27 | ||
HUP0102625 | 2001-06-27 | ||
HUP0105375 | 2001-12-19 | ||
HU0105375A HUP0105375A2 (en) | 2001-12-19 | 2001-12-19 | Instalation and method for (waste) water treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003002463A1 true WO2003002463A1 (en) | 2003-01-09 |
Family
ID=89980014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU2002/000059 WO2003002463A1 (en) | 2001-06-27 | 2002-06-26 | Method and apparatus for water purification by uvc-irradiation |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2003002463A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1739061A1 (en) * | 2005-06-30 | 2007-01-03 | Toflo Corporation | Dissolved ozone decomposing apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141830A (en) * | 1977-02-02 | 1979-02-27 | Ontario Research Foundation | Ozone/ultraviolet water purifier |
US4230571A (en) * | 1979-01-22 | 1980-10-28 | Dadd Robert C | Ozone/ultraviolet water purification |
US4273660A (en) * | 1979-02-21 | 1981-06-16 | Beitzel Stuart W | Purification of water through the use of ozone and ultraviolet light |
US4857204A (en) * | 1986-11-17 | 1989-08-15 | Joklik Otto F | Method of an apparatus for sterilizing aqueous media, more particularly drinking water |
DE4110687A1 (en) * | 1991-04-03 | 1991-10-02 | Martin Dipl Ing Fricke | Treatment of liq. contaminated with hazardous substances - by mixing with an oxidising agent in cylindrical tube and exposing to UV light |
US5474748A (en) * | 1993-12-03 | 1995-12-12 | Szabo; Louis | Water decontaminating device |
DE4446669A1 (en) * | 1994-12-15 | 1996-06-20 | Cwg Gmbh | UV steriliser and its use in a water treatment plant |
-
2002
- 2002-06-26 WO PCT/HU2002/000059 patent/WO2003002463A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141830A (en) * | 1977-02-02 | 1979-02-27 | Ontario Research Foundation | Ozone/ultraviolet water purifier |
US4230571A (en) * | 1979-01-22 | 1980-10-28 | Dadd Robert C | Ozone/ultraviolet water purification |
US4273660A (en) * | 1979-02-21 | 1981-06-16 | Beitzel Stuart W | Purification of water through the use of ozone and ultraviolet light |
US4857204A (en) * | 1986-11-17 | 1989-08-15 | Joklik Otto F | Method of an apparatus for sterilizing aqueous media, more particularly drinking water |
DE4110687A1 (en) * | 1991-04-03 | 1991-10-02 | Martin Dipl Ing Fricke | Treatment of liq. contaminated with hazardous substances - by mixing with an oxidising agent in cylindrical tube and exposing to UV light |
US5474748A (en) * | 1993-12-03 | 1995-12-12 | Szabo; Louis | Water decontaminating device |
DE4446669A1 (en) * | 1994-12-15 | 1996-06-20 | Cwg Gmbh | UV steriliser and its use in a water treatment plant |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1739061A1 (en) * | 2005-06-30 | 2007-01-03 | Toflo Corporation | Dissolved ozone decomposing apparatus |
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