WO2003033413A1 - Apparatus for disinfecting water using ultraviolet radiation - Google Patents

Apparatus for disinfecting water using ultraviolet radiation Download PDF

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Publication number
WO2003033413A1
WO2003033413A1 PCT/US2002/032759 US0232759W WO03033413A1 WO 2003033413 A1 WO2003033413 A1 WO 2003033413A1 US 0232759 W US0232759 W US 0232759W WO 03033413 A1 WO03033413 A1 WO 03033413A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
inlet tube
tube
fluid inlet
containment vessel
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.)
Ceased
Application number
PCT/US2002/032759
Other languages
English (en)
French (fr)
Inventor
Robert J. Saccomanno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26953178&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2003033413(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to KR1020047005622A priority Critical patent/KR100961090B1/ko
Priority to EP02801696A priority patent/EP1444168B1/en
Priority to CA2463995A priority patent/CA2463995C/en
Priority to ES02801696T priority patent/ES2405586T3/es
Priority to JP2003536159A priority patent/JP4371813B2/ja
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Priority to AU2002335007A priority patent/AU2002335007C1/en
Priority to MXPA04003587A priority patent/MXPA04003587A/es
Priority to BRPI0213348A priority patent/BRPI0213348A2/pt
Priority to IL16146602A priority patent/IL161466A0/xx
Publication of WO2003033413A1 publication Critical patent/WO2003033413A1/en
Anticipated expiration legal-status Critical
Priority to IL161466A priority patent/IL161466A/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/02—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using physical processes
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet [UV] radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • 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
    • C02F2201/3221—Lamps suspended above a water surface or pipe
    • 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
    • C02F2201/3228—Units having reflectors, e.g. coatings, baffles, plates, mirrors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light

Definitions

  • This invention relates to a water purification system using intense ultraviolet irradiation to break down chemical bonds in toxic compounds and to de-activate pathogens.
  • the method can also be applied to any mass transport, including the purification of air.
  • These systems can be applied to purify fluids containing naturally occurring toxins or those resulting from biological and chemical agents used in warfare.
  • UV disinfection since became popular in most European countries.
  • US Patent 1 ,196,481 , issued August 29, 1916 described the use of a mercury vapor lamp to generate sufficient ultraviolet light (mostly 254-nm wavelength) to purify water.
  • This basic approach built upon the UV efficacy of extended-arc continuous-duty mercury based lamps, has been refined over the years, such as in Ellner US Patent 3,182,193 issued May 4, 1965, Maarschalkerweerd US Patent 4,482,809 issued November 13, 1984, Moyher US Patent 5,069,782 issued December 3, 1991 , Tiede US Patent 5,393,419 issued February 28, 1995, and Anderson US Patent 6,099,799 issued August 8, 2000.
  • Prior art UV water disinfecting systems expose the water to UV radiation such that the radiation passes through the water, strikes a reflecting surface and then passes through the water after reflection.
  • the reflecting surfaces absorb a significant amount of radiation. There is a long- felt need to improve the efficiency of such systems.
  • My invention is an apparatus and method for disinfecting water, or other fluid, that channels water through one end of a tube and couples ultraviolet (UV) energy from a high intensity lamp through the tube from the other end.
  • the water, or other fluid acts like the core of a liquid light pipe, with an air gap surrounding the tube acting as a low index cladding.
  • the tube itself is constructed of a non-UV-absorbing material, such as UV-grade fused silica glass.
  • TIR total internal reflection
  • the tube is polygonal in cross-section, which is known in the art to maximize light flux uniformity within a light pipe.
  • Embodiments of my invention with multiple zones efficiently handle a wide range of water absorption coefficients, all at the highest practical efficiency.
  • one of three zones is defined by a concentric UV-grade tubing concentrically around only a portion of the tube through which the water flows and others of these zones are defined between these tubes and the enclosing outer tube.
  • FIG. 1 depicts an apparatus for disinfecting water using ultraviolet radiation (UV) in accordance with one illustrative embodiment of my invention.
  • UV ultraviolet radiation
  • FIG. 2 depicts a sectional view of the UV disinfecting apparatus of FIG. 1.
  • FIG. 3 depicts a light pipe irradiation zone within the UV disinfecting apparatus of FIG. 1, showing how the ultraviolet radiation is contained using total internal reflection (TIR).
  • TIR total internal reflection
  • UV light ray entering fluid
  • 100 light pipe formed from fluid, fluid inlet tube, and concentric gap
  • 1 incidence angle reflection at fluid inlet tube internal surface
  • 2 internal reflection angle reflection at fluid inlet tube external surface
  • FIG. 1 the basic construction of an ultraviolet (UV) water disinfecting device in accordance with my invention is shown, including a fluid inlet tube 10 that acts as a central light pipe, an optical cladding tube 20 around the lower portion of fluid inlet tube 10 and defining therewith a concentric gap 15, a fluid containment vessel 30, a fluid outlet tube 50, and a high intensity UV lamp 40, such as a flashlamp.
  • a fluid inlet tube 10 that acts as a central light pipe
  • an optical cladding tube 20 around the lower portion of fluid inlet tube 10 and defining therewith a concentric gap 15, a fluid containment vessel 30, a fluid outlet tube 50, and a high intensity UV lamp 40, such as a flashlamp.
  • the fluid containment vessel 30 includes an internal surface configured as an ultraviolet mirror 31 ; for example, the fluid containment vessel may be constructed from aluminum and the internal surface may be polished aluminum.
  • the fluid inlet tube 10 may be manufactured, for example from UV-grade fused silica.
  • the fluid 5 travels through the fluid inlet tube 10 towards the high intensity UV lamp 40 and exits the fluid inlet tube 10 at the exit end 12.
  • the fluid 5 flow then strikes an ultraviolet (UV) window lower surface 36, which forms a portion of the lower end of fluid containment vessel 30.
  • UV ultraviolet
  • the fluid 5 flow is redirected to the fluid outlet tube 50, which is located in the upper end of the fluid containment vessel 30.
  • the fluid 5 is contained within the fluid containment vessel 30.
  • the fluid containment vessel 30 includes an inner tube 33, which may be constructed from UV-grade fused silica, contained within an outer aluminum shell with a reflective interior surface defining a UV mirror 31 , with an air gap 32 between the outer shell and the inner tube 33. Then ends of the outer tube 30 are closed off with the lower ultraviolet window surface 36 and an ultraviolet window upper surface 37.
  • the preferred orientation of the ultraviolet (UV) water disinfecting device is vertical, so that the fluid 5 flow approximates plug-flow, and the position of the fluid outlet tube 50 is at or near the highest point, allowing for quick and efficient removal of undesirable air bubbles.
  • Air bubbles present in the fluid 5 can form scattering sites for the UV radiation thereby degrading system efficiency. These UV scattering sites result in UV radiation being directed at less than optimum angles causing reflections from the fluid containment vessel internal surface, the ultraviolet mirror 31 that is approximately 86% reflective when composed of aluminum tube. Without these UV scattering sites, the ultraviolet radiation is dissipated mostly within the fluid 5, because all reflections are near loss-less because of the total internal reflection (TIR) operation of a light pipe.
  • TIR total internal reflection
  • a light pipe 100 region is formed from the fluid 5, such as water, the fluid inlet tube 10, such as a UV-grade fused silica tube, and the concentric gap 15, such as an air gap or a vacuum gap.
  • the concentric gap 15 is hydraulically isolated from the fluid 5, in order to allow 0 the light pipe 100 to operate.
  • Light pipe operation is based on the refractive index of the concentric gap being less than the refractive index of the fluid 5. 2
  • the refractive indices of fused silica and water in the UV region of the light spectrum are shown in Table 1 below.
  • UV radiation is transmitted from the high intensity ultraviolet lamp 40, passes through the ultraviolet inlet aperture 35, and enters the lower ultraviolet window surface 36 as shown in FIG. 2.
  • a first UV light ray 71 exits lower ultraviolet window surface, is bent by refraction, and enters the fluid 5, defining a second UV light ray 72.
  • the second UV light ray 72 impinges upon the internal surface 13 of the fluid inlet tube 10, which is in contact with the fluid 5, at an incidence angle 1 D where incidence angle 1 is measured with reference to the surface normal of internal surface 13.
  • the second UV light ray 72 enters a sidewall of the fluid inlet tube 10, it is bent by refraction and redirected at a new internal reflection angle 2, defining a third UV light ray 73.
  • the value of angle 2 is a function of incident angle 1 and the refractive indices of the fluid 5 and the material, such as UV-grade silica, from which the fluid inlet tube 10 is constructed.
  • the third UV light ray 73 continues through the fluid inlet tube 10 material and impinges upon the external surface 14 of the fluid inlet tube that is in contact with the concentric gap 15.
  • the third UV light ray 73 is reflected back into the sidewall of the fluid inlet tube 10, defining a fourth UV light ray 74 when the refractive indices of the fluid inlet tube 10 material and the concentric gap 15 meet certain conditions as defined by Snell's Law.
  • the refractive index of the concentric gap 15 is defined by the material contained in the concentric gap or by the refractive index of a vacuum if no material is contained within the concentric gap 15.
  • a light pipe 100 region exists for at least part of the length of the fluid inlet tube 10. Therefore, it is required that the incidence angle 2 be limited to a predetermined range in accordance with the refractive indices of the fluid 5, the material from which the fluid inlet tube 10 is constructed, and the concentric gap 15.
  • the fluid inlet tube 10 is constructed from UV- grade silica glass, the fluid 5 to be disinfected is water, and the concentric gap 15 contains a vacuum.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Light Guides In General And Applications Therefor (AREA)
PCT/US2002/032759 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation Ceased WO2003033413A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
IL16146602A IL161466A0 (en) 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation
MXPA04003587A MXPA04003587A (es) 2001-10-17 2002-10-15 Aparato para desinfectar agua usando radiacion ultravioleta.
CA2463995A CA2463995C (en) 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation
ES02801696T ES2405586T3 (es) 2001-10-17 2002-10-15 Aparato para desinfectar agua utilizando radiación ultravioleta
JP2003536159A JP4371813B2 (ja) 2001-10-17 2002-10-15 紫外放射線を使用して水を滅菌する装置
KR1020047005622A KR100961090B1 (ko) 2001-10-17 2002-10-15 자외선 에너지를 이용한 유체 정화 장치
AU2002335007A AU2002335007C1 (en) 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation
EP02801696A EP1444168B1 (en) 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation
BRPI0213348A BRPI0213348A2 (pt) 2001-10-17 2002-10-15 sistema para desinfectar água usando radiação ultravioleta(uv)
IL161466A IL161466A (en) 2001-10-17 2004-04-18 Water purification device using ultraviolet radiation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33017401P 2001-10-17 2001-10-17
US60/330,174 2001-10-17
US10/268,567 2002-10-09
US10/268,567 US6773584B2 (en) 2001-10-17 2002-10-09 Apparatus for disinfecting water using ultraviolet radiation

Publications (1)

Publication Number Publication Date
WO2003033413A1 true WO2003033413A1 (en) 2003-04-24

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ID=26953178

Family Applications (1)

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PCT/US2002/032759 Ceased WO2003033413A1 (en) 2001-10-17 2002-10-15 Apparatus for disinfecting water using ultraviolet radiation

Country Status (12)

Country Link
US (1) US6773584B2 (https=)
EP (2) EP2258660A3 (https=)
JP (1) JP4371813B2 (https=)
KR (1) KR100961090B1 (https=)
CN (1) CN1321904C (https=)
AU (1) AU2002335007C1 (https=)
BR (1) BRPI0213348A2 (https=)
CA (1) CA2463995C (https=)
ES (1) ES2405586T3 (https=)
IL (2) IL161466A0 (https=)
MX (1) MXPA04003587A (https=)
WO (1) WO2003033413A1 (https=)

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JP2010509019A (ja) * 2006-11-14 2010-03-25 アトランティウム テクノロジーズ エルティディ． 光透過性導管を使用した液体消毒のための方法および装置
USRE43332E1 (en) 1999-04-23 2012-05-01 Atlantium Technologies Ltd. Method and device for disinfecting and purifying liquids and gasses
EP2529759A1 (en) * 2011-06-03 2012-12-05 Virobuster GmbH Apparatus and method for an inactivation of proteinogenic allergens
US8414779B2 (en) 2006-11-14 2013-04-09 Atlantium Technologies Ltd. Method and apparatus for liquid disinfection using light transparent conduit
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KR102716353B1 (ko) * 2017-04-14 2024-10-15 서울바이오시스 주식회사 유체 처리 장치
CN114620797A (zh) * 2017-07-12 2022-06-14 首尔伟傲世有限公司 流体处理装置
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KR20190112372A (ko) * 2018-03-26 2019-10-07 서울바이오시스 주식회사 물 살균 모듈 및 이를 포함하는 공기 냉각기
US10849997B2 (en) * 2018-10-10 2020-12-01 Bolb Inc. Disinfection device having disinfection light source
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US12439910B2 (en) * 2021-06-28 2025-10-14 John M. Brassil Apparatus and method for sustaining and evaluating isolated organs
FR3139332A1 (fr) 2022-09-02 2024-03-08 Behring Dispositif de traitement d’un liquide par rayonnements ultra-violets

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AU2002335007C1 (en) 2006-08-10
EP2258660A3 (en) 2011-06-15
KR100961090B1 (ko) 2010-06-07
US20030089670A1 (en) 2003-05-15
KR20040045846A (ko) 2004-06-02
JP2005506180A (ja) 2005-03-03
JP4371813B2 (ja) 2009-11-25
CN1571758A (zh) 2005-01-26
BRPI0213348A2 (pt) 2017-03-28
EP2258660A2 (en) 2010-12-08
MXPA04003587A (es) 2004-07-23
EP1444168B1 (en) 2013-03-20
IL161466A (en) 2006-10-31
CA2463995A1 (en) 2003-04-24
CN1321904C (zh) 2007-06-20
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AU2002335007B2 (en) 2005-06-16
IL161466A0 (en) 2004-09-27

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