WO2003033402A2 - Systeme de production et de distribution d'ozone dissous - Google Patents

Systeme de production et de distribution d'ozone dissous Download PDF

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Publication number
WO2003033402A2
WO2003033402A2 PCT/US2002/033026 US0233026W WO03033402A2 WO 2003033402 A2 WO2003033402 A2 WO 2003033402A2 US 0233026 W US0233026 W US 0233026W WO 03033402 A2 WO03033402 A2 WO 03033402A2
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WO
WIPO (PCT)
Prior art keywords
ozone
water
dissolved
delivery
recirculation conduit
Prior art date
Application number
PCT/US2002/033026
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English (en)
Other versions
WO2003033402A3 (fr
Inventor
Benedict B. St. Onge
Jerry Smith
Original Assignee
Pure O3 Tech, 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
Application filed by Pure O3 Tech, Inc. filed Critical Pure O3 Tech, Inc.
Priority to AU2002359272A priority Critical patent/AU2002359272A1/en
Publication of WO2003033402A2 publication Critical patent/WO2003033402A2/fr
Publication of WO2003033402A3 publication Critical patent/WO2003033402A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/183—Ozone dissolved in a liquid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours
    • A61L2/202—Ozone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • 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
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators

Definitions

  • a compact system for the efficient controlled delivery of water containing a consistent and high concentration of dissolved ozone also includes automated controls for maintaining a desired concentration and flow rate along with ozone monitoring equipment to protect operators from being exposed to hazardous levels of gaseous ozone vapors.
  • Ozone has been used in sewage treatment plants to generate an effluent that can be safely discharged and in the production of potable water and to sterilize medical products prior.
  • Typical ozone • generating systems are designed for high volume applications, such as industrial or municipal processing plants, and cannot be used, or scaled down for use in a sink-side food sale or processing environment.
  • FIG. 1 is a schematic drawing showing the components of the dissolved ozone delivery system and their inter-relationship.
  • FIG. 2 is a perspective front view showing the exterior of the wheel mounted cabinet containing the system of Fig. 1.
  • a dissolved ozone delivery system 10 incorporating features of the invention comprises a control module and display 12 mounted on a free standing, readily moveable or mountable enclosure 14 is shown in Fig. 2.
  • Mounted within the enclosure are all of the components shown schematically in Figure 1 necessary to intake room air and deliver a steady stream of water containing a desired concentration of dissolved ozone.
  • the only external attachments required are an adequate supply of water and a 120 volt (or 220 volt) power source.
  • the system includes the following subsystems: 1) A wheel mounted cabinet to enclose and carry all of the system components,
  • a gauge to continuously display the ozone concentration in the recirculation loop.
  • the display uses a ready indicator as a loop lock indicator for the desired setting on the consentration loop.
  • the operator simply starts the machine and sets the level of ozone (the unit is preset to a most common use level ) . when the desired level is reached + .5 ppm, the ready indicator lights, the light remains on until the dissolved ozone level drops to less then setting indicated on the level setting.
  • the generator will cycle to maintain the desired level internally.
  • the cabinet enclosure 14 is designed to be rolled through a standard 32 inch or wider doorway. It includes a top mounted control panel 12 conveniently located for operator access and easy visibility. Rotatable and easily lockable castors (wheels) 16 are mounted to the four corners of the unit.
  • the cabinet is 27 - 32 inches wide and deep and four to five feet high with a control panel 12 mounted to the upper portion.
  • One preferred embodiment is 27 to 28 inches wide and deep, about 54 inches high and has a control panel 12 mounted at the top of and at an angle of about 45° to the front face of the cabinet.
  • a PLC controlled system uses a custom controller card specifically designed to operate and integrate the operation of the various components.
  • the front panel 12 includes all of the control switches, indicators, and audio alert systems 18 necessary for operation of the system and to vary the desired ozone delivery stream, preferably sealed so that any water which may spill on the unit will not penetrate into the and disable the electronic controls.
  • the control switches, which are in the control panel 12, are preferably provided as a membrane keypad. All system indications are provided with both visual and audio feedback. For example when a button is pushed, a beep sounds and a visible LED change will occur. Operational failures will result in a coded tone sequence, the tone being varied for each type of failure.
  • the read outs are connected to high and low pressure sensors, sensors to indicate the concentration of ozone in the intake air and the output water stream, RS232 input ports 20 so that the controller software can be modified, updated, and supplemented, audio 18 and visual 22 alerts to warn of malfunctioning or variations from set points (component malfunction, excess or low ozone, high or low pressure, low system flow, plugged filters or dirty screens, malfunctioning parts), switches to turn on or off various components (valves, water pump, ozone generator, oxygen concentrator) component diagnostics to evaluate proper functioning, etc. While the control panel 12 and each of the components monitored and controlled by the switches are schematically shown in Figure 1, the control connections between these components is not shown so as not to complicate Fig. 1. One skilled in the art will be readily able to connect these various components.
  • the hose 24 designed for the system is a key component of the system. It was found, because of the reactive nature of most available hose materials to ozone, that, even though the concentration of ozone in the water stream exiting the ozone generator may have been more than adequate, the concentration of ozone in the water exiting the delivery hose was extremely depleted. In prior art systems, large diameter hoses and pipes are used to deliver the ozone containing water. Because large volumes of ozone containing water were delivered, the percent of water in contact with the delivery hose wall was relatively small and the loss of ozone along the length of the hose may have been limited to about 25%.
  • Teflon was substantially non-reactive with the ozone in the water so that a 15 foot hose 24 with spray nozzle 26 could be used and the ozone concentration in the water delivered 28 at a flow rate of 3.5GPM per minute had an ozone concentration, at the delivery end, of at least about 90% of the concentration of the water exiting the ozone/water mixing tank (delivery concentration - up to about 14ppm).
  • the system takes water from a feed source delivering the water at 15 to 100 psi.
  • intake 28 water is feed from a tank, trough or sink 30 so that ozonated water used for treating produce can be recovered and recirculated for reuse to conserve ozone and reduce the amount of ozone dissipated into the operating area.
  • a standard water supply 32 can be used.
  • the pressure of the incoming water is preferentially limited, by a valve 32 to 10 psi.
  • An internal recirculation loop 34 is provided so that during on-and-off delivery of the ozone water to a treatment area, the ozonated water is recycled through the system and an internal mixing loop 36 and storage and mixing tank 38, ⁇ the tank preferably holding about 6 gallons to maintain the desired ozone concentration and reduce the time the oxygen generator 40 and ozone generator 42 have to operate to provide the desired concentration level. More specifically, one or more sensors 44 in the recirculation loop 34 monitor the ozone concentration and provide modulating signals to the ozone generator 42 oxygen concentrator 40 and feed control valve 41 reducing the output of these components until the ozone level falls below a preset control point. This also allows the system 10 to operate in an instant-on mode so that when it is desired to deliver ozonated water, the water has the preset, controlled concentration of ozone.
  • the ozone destruction system 46 comprises a proprietary combination of pellets made of various metal catalysts sold under the trademark CARULITE 200 by Cams Chemical Company, Pern, Illinois.
  • the metal catalyst pellets are placed in a tube 46 at the air intake 48 to the oxygen generator 40 with the tube being heated by the exhaust hot air 50 released from the oxygen concentrator. This keeps the CARULITE material from absorbing water and becoming inactivated.
  • ozone to ozone, and thus reduce the amount and concentration of ozone in the solution delivered include various rubbers, including silicone rubber, various metals which are normally subject to oxidation such as standard steels, which tend to rapidly mst, aluminum, which forms an aluminum oxide coating and copper, which rapidly oxidizes. These materials not only rapidly destroy the ozone, they also rapidly become oxidize and degrade so they contaminate the water solution, loose strength, leak (such as seals) or disintegrate (such as pump impellers). While ozone very effectively destroys bacteria, mold and organic materials that may be hazardous to the users health, excess exposure to ozone by equipment operators can also be detrimental to health. Acceptable exposure levels to ozone depend on the length of exposure time.
  • the odor threshold is 0.01 to 0.04ppm, at 0.05 to 0.1 ppm minor irritation to lungs and throat occurs, O.lOppm generally causes headache, and from about 0.25 to 0.5ppm a temporary reduction in lung function may occur.
  • O.lOppm generally causes headache, and from about 0.25 to 0.5ppm a temporary reduction in lung function may occur.
  • a temporary reduction in lung function may occur.
  • inflammatory tissue reaction can occur and lung irritation and coughing results; at exposure levels from 1.5 to 9ppm increased lung irritation and fluids build up in the lung occurs, with symptoms lasting up to two weeks.
  • Exposure to lppm for 6-10 hours can cause chromosome damage in humans and considerable irreparable damage occurs at 10 to 50ppm, l lppm continuous exposure for 15 min can cause unconsciousness and 50ppm continuous exposure for 30 min. is generally fatal.
  • the system is designed to shut down if ozone concentrations at the sampling site, which is also at the air intake 48, reach 0.3ppm. While this is a preferred setting, the alarm and shut down setting can be established based on the operational environment. For example, the alarm and shut off point may be set higher when operating in areas where high levels of atmospheric ozone are present.
  • the system includes a sensor 52 that continuously monitors the ozone in the intake air stream. This location is preferred because it minimizes damage from spray water or erroneous readings due to heat generated by components of the system or hydrocarbons which may be released as off gases.
  • This ozone level in the intake air stream can be correlated with the ozone concentration in the air being inhaled by the system operator.
  • the system includes three alarm levels. When intake air ozone concentrations exceeds a preset lower threshold level a periodic audible and visible
  • the ozone generator system automatically shuts down and can not be restarted until the ambient ozone concentration is reduced to a safe level.
  • the preferred system settings are currently set as follows: Low ozone alert - 0.14ppm - Low frequency beep alert 50ms once a second and fault and ventilation indicator light appears on the control panel.
  • a particularly suitable device for alarm purposes is the ECO Sensor Model FM-1 available from Lenntech Water- & Luchtbeh. Holding b.v. of Delft, The Netherlands .
  • This device uses a heated metal oxide sensor (HMOS). It measures the electrical resistance of the intake gas stream and correlates it to ozone concentration.
  • HMOS heated metal oxide sensor
  • this device While the sensor resistance varies approximately linearly with ozone concentration, this device is not specific to ozone as it will detect a change in electrical resistance caused by any abnormal constituents in the air such as other oxidizing gases (chlorine, nitrogen dioxide, urine residues, sulfur and ammonia compounds, and acid gases (nitric and sulfuric)). Also, it is flow dependent, therefore a relatively constant air flow between 200 and 1000 ml/min is desired. However, in the typical operating environments contemplated, a resistance detector is adequate for the purposes intended.
  • the steady state operation of the system is capable of continuously delivering 6 gallons per minute of water with a dissolved ozone concentration of from about 10 ppm to about 14 ppm (about 4% by weight).
  • the concentration of ozone in the recirculation loop is monitored using a polarographic sensor 44 which is ozone specific.
  • a preferred 44 sensor is a series 313xx sensor available from Orbisphere Laboratories of Neuchatel, Switerzland. This sensor is capable of accurately and continuously measuring ozone concentrations from 5ppb to lOppm.
  • Applicant modified this off-the-shelf sensor by removing the two circuit cards from an existing unit and feeding the signal output into the system controller.
  • 0.05 to 5vdc output was calibrated to a tolerance band and ⁇ O.lppm accuracy so that it provides readings from lppm to lOppm ⁇ 0.25ppm..
  • Actual ozone concentrations, indicated in ppm ozone can then be displayed on a nieter mounted in the display panel 12 or used by the CPU to activate a "ready" LED, indicated a desired, preset concentration was reached.
  • the preferred ozone generator 42 is an air cooled unit capable of generating a high concentration of ozone at 3.5gpm, with 4 to 18 % w output. The flow is limited to 8 scfh by a venturi.
  • the preferred ozone generator is described and claimed in US Patent Application, Serial Number 09/793,795, filed Feb 23, 2001, incorporated herein by reference. The device described therein is a small size, high voltage, high efficiency ozone generator.
  • a preferred embodiment comprises a) an enclosure including an entry chamber for receiving feed gas, such as air from a dryer, an oxygen concentrator on oxygen supply such as from a liquid oxygen source, or other enhanced oxygen feed sources b) one or more ozone generating cells comprising interleaved electrodes and dielectrics with passageways between the dielectrics for receiving gas from the entry chamber and converting the oxygen therein to ozone, c) an alternating voltage generator connected to the electrodes so as to create corona discharges between adjacent dielectrics, and d) an exit chamber at the other end of enclosure for receiving the ozone containing gas.
  • feed gas such as air from a dryer
  • an oxygen concentrator on oxygen supply such as from a liquid oxygen source, or other enhanced oxygen feed sources
  • ozone generating cells comprising interleaved electrodes and dielectrics with passageways between the dielectrics for receiving gas from the entry chamber and converting the oxygen therein to ozone
  • an alternating voltage generator connected to the electrodes so as to create corona discharges
  • a first typical ozone generating cell includes a first electrode, a second electrode, and first and second dielectrics.
  • the first electrode includes a top face.
  • the first dielectric includes a top and bottom face. The bottom face is opposed to the top face of the first electrode and separated therefrom so as to form a first passageway.
  • the second electrode includes a bottom face opposed to the top face of the first dielectric and separated therefrom so as to form a second passageway.
  • the received gas flows through the passageways.
  • the top face of the first electrode may include a plurality of crests and troughs relative to the bottom face of the dielectric oriented across the flow of received gas through the first passageway.
  • each dielectric When powered, each dielectric provides a plurality of points of corona discharges on its unattached sides.
  • the received gas must flow through substantially a continuous curtain of corona discharge.
  • the turbulent flow is also created by the device construction, an increased gas flow rate and turbulence resulting from the corona heating of the feed gas in contact with the cooler dielectric films.
  • This cell design also eliminates the requirements for a corrosion resistant construction materials, such as stainless steel heat sink surfaces for corrosion resistance against nitric acid by -products created when air is used as a feed gas for ozone generators.
  • Figure 1 is a schematic diagram showing the major components of a system incorporating features of the invention.
  • the inputs to the system are room air 48 and city water (or recovered ozonated water) 28.
  • a gaseous stream containing oxygen In order to produce ozone a gaseous stream containing oxygen must be fed to the ozone generator.
  • the source can be bottled air or oxygen or ambient air.
  • the oxygen containing feed gas is ambient (room) air 48 that is drawn in by a compressor 54 and then fed to an oxygen concentrator.
  • Several different devices to concentrate oxygen are commercially available, including membrane systems and resin based (zeolite molecular sieves) systems.
  • a preferred device is a Work Horse 8 provided by SeQual Technologies of San Diego, CA. This oxygen concentrator 40 is capable of generating 8 standard cubic feet per hour of a gaseous stream containing 90% oxygen at 15 -20 psi.
  • a gaseous stream 56 containing 4% by weight at 5scfh (13gr/hr) of ozone is produced.
  • This ozone containing gas stream 56 is then aspirated into a stream of water 58 which is flowing at about 3 to about 5 gallons per minute, and at a pressure of from about 15 to about 30 psi , preferably 20psi.
  • the internal diameter of the tubing in the water recirculation loop 34 depends on the amount of ozone containing water to be delivered, a typical tubing used in the system is 0.030" Teflon ( 0.750 inch i.d.).
  • the water now containing ozone passes through a mixing loop 36 made of 25ft of 0.75" 304 convoluted stainless steel to cause turbulence and good mixing and fed into a mixing tank 38.
  • the mixed stream of water exits the bottom of the mixing tank 38 where it reenters the recirculation loop 34 and is alternatively directed to the delivery hose 24 or through the recirculation loop 34 and back to the ozone injection point 58, mixing loop 36 and mixing tank 38.
  • the spray mode is activated, temporarily removing the throttling valve 62, which is important for maintaining the pressure on the water stream in recirculation mode, improves the ozone delivery at the nozzle 26. This is accomplished by opening the bypass loop 90 when the spray mode is activated.
  • the mixing tank 38 is designed to create a clockwise flow, to create a time delay of about 3 minutes for diffusion and then provide to the recirculation loop 34, and to the spray head 26 on demand, a consistent dissolved ozone source.
  • On the top of the mixing tank 38 is a water/air separator 92 to vent undissolved ozone. This undissolved ozone may then be fed via feed line 94 back to the ozone generator and then mixed into the water stream.
  • the spray head 26 is not spraying, the system 10 goes into internal recirculation mode. It is important to prevent system overpressure during recirculation to keep the ozone output concentration consistent when operated in burst spray mode.
  • ozone sensor 44 Included in the recirculation loop 34 are typical flow control and drain valves 60, vents and pressure relief valves 62, pumps 74, pressure and flow controllers or regulators, particulate filters and strainers 66, 68, high and low pressure sensors 70, 72 and at least one ozone sensor 44 (described above). Control of the pressure in the system has found to be an important variable as it has been discovered that if an excess pressure is generated in the loop (greater than about 20psi) then the dissolved O 3 will be rapidly released as ozone gas as the ozone containing water exits the spray nozzle 26 and become a air pollutant. A spray nozzle 26 constructed of plastic and stainless steel has been found to be relatively non-destructive to the dissolved ozone.
  • the nozzle water delivery openings are sized so that, at the generally used water delivery rate, the water is delivered in a sprinkling manner rather than a forceful spray. This minimizes back pressure and minimizes the loss of dissolved ozone as a result of expansion through the nozzle.
  • the spray nozzle 26 is designed to deliver the dissolved ozone with only a minimal pressure difference (over pressure) between atmospheric pressure and the pressure of the water in the recirculation system. This requires the utilization of both constant flow controller(s) and constant back pressure valve/regulatdr(s) 60, 62, 64.
  • the embodiment shown in Figure 1 includes: a Y hp pump 74 with a flow capacity of 3.8gpm at 40psi delta, a 5 micron bag filter 66 constmcted from a 304 stainless steel mesh, a 100 micron 304 stainless steel mesh Y-strainer 68, and high and low pressure sensors 70, 72 set at 5-10psi and 40-7psi, respectively.
  • a typical 5 ⁇ filter 66 comprises a stainless steel vessel with up to 2 liters capacity holding a basket about 3 inches in diameter and 9 to 15 inches long.
  • the basket is constructed of three coaxially nested screens with a progressively smaller pore size in the direction of flow, the smallest pore size being 5 ⁇ .
  • the filter While the filter is rated for flow of about lOgpm, the flow through the filter is generally limited to about 3.5 gpm. However, the system can be set to sound an alarm if flow approaches a predetermined set point, for example 2.5gpm, and to shut down the system and flash a visual alert if the preset minimum flow rate falls below about 2.5gpm.
  • the system also includes a water supply line 32 with a pressure regulator 64 so that input water pressure is maintained in the range of 10 to 20 psi.
  • the incoming water feed is also modulated to prevent the mixing tank 38 from overfilling. Limiting the pressure on the feed water also assures that pressure at the ozone injector is minimized, reducing total gas intake and ozone gas loss at the spray nozzle.
  • dissolved ozone delivery system described herein and incorporating features of the invention can be used in any applications where it is desirable to provide a consistent, continuous, controllable quantity of dissolved ozone over an extended period of time.
  • a particularly suitable application is the decontamination of a broad variety of surfaces which may have been exposed to harmful organic or biological materials such as chemical or biological warfare agents, for example, anthrax, sarin, etc.
  • Liquid ozone can neutralize almost every known biological and chemical weapon.
  • the above described system for generating dissolved ozone provides a suitable delivery system for liquid ozone (dissolved ozone) for washing contaminated surfaces.
  • water is described as the liquid in which the ozone is dissolved, one skilled in the art will recognize that the same system can be used to dissolve ozone in any suitable liquid, including water containing other additives for cleaning, decontamination or preservation purposes.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

L'invention concerne un système compact permettant une distribution régulée efficace d'une eau présentant une concentration élevée et constante d'ozone dissous. Ce système de distribution comprend un concentrateur d'oxygène et un générateur d'ozone, l'ozone gazeux produit étant injecté dans un courant d'eau recirculée. La boucle de recirculation d'eau comprend une boucle de mélange et un réservoir de mélange assurant une turbulence et un temps de séjour suffisants pour obtenir une concentration élevée, constante et continue d'ozone dissous dans l'eau. Ledit système comprend également des commandes automatisées destinées à maintenir une concentration et un débit souhaités, ainsi qu'un dispositif de surveillance d'ozone permettant de protéger les opérateurs contre une exposition à des niveaux dangereux de vapeurs d'ozone gazeux. Ce système est utile pour nettoyer des produits en vue d'en extraire les contaminants et pour décontaminer des surfaces susceptibles d'avoir été exposées à des agents biologiques ou chimiques.
PCT/US2002/033026 2001-10-15 2002-10-14 Systeme de production et de distribution d'ozone dissous WO2003033402A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002359272A AU2002359272A1 (en) 2001-10-15 2002-10-14 Dissolved ozone generation and delivery system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97746901A 2001-10-15 2001-10-15
US09/977,469 2001-10-15

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Publication Number Publication Date
WO2003033402A2 true WO2003033402A2 (fr) 2003-04-24
WO2003033402A3 WO2003033402A3 (fr) 2003-11-13

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Cited By (18)

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GB2402066A (en) * 2003-05-23 2004-12-01 Bioquell Uk Ltd Apparatus for disinfecting a surface
WO2006080829A1 (fr) * 2005-01-28 2006-08-03 Roberto Rojo Chan Dispositif destine a l'application d'un melange liquide-ozone sous forme de brouillard pour la desinfection de surfaces
DE102005004237B3 (de) * 2005-01-28 2006-09-07 Medizin & Service Gmbh Desinfektionssystem und Verfahren zur Desinfektion von zu desinfizierenden Teilen
WO2010001279A1 (fr) * 2008-07-04 2010-01-07 Cape Winds Trading 27 Cc Dispositif de désinfection
WO2010104477A1 (fr) * 2009-03-10 2010-09-16 Beng Lai Koh Procédé et système de traitement de l'eau et des eaux usées
US7833411B2 (en) * 2007-07-31 2010-11-16 Mitsui Engineering & Shipbuilding Co., Ltd. Ballast water treatment apparatus
DE102009026377A1 (de) * 2009-08-14 2011-02-24 Brensing, Karl August, Dr. Anlage zur Desinfektion und Sanitisierung
JP2013034911A (ja) * 2011-08-03 2013-02-21 Nissan Rinkai Construction Co Ltd オゾン水散布システム
WO2014197759A1 (fr) * 2013-06-07 2014-12-11 Lvd Acquisition, Llc Dispositif et procédé de désinfection de surfaces et de traitement d'eau a l'aide d'ozone
EP2433909B1 (fr) * 2010-09-24 2015-07-01 Evergreen Tecno Platns S.r.l. Système de désinfection de l' eau à l'aide d'ozone.
EP2582472A4 (fr) * 2010-06-16 2016-02-24 Food Safety Technology Llc Système de production et de distribution d'un fluide ozoné
CN106865737A (zh) * 2017-03-30 2017-06-20 森克赛斯环保设备无锡有限公司 一种活氧水机
US9919939B2 (en) 2011-12-06 2018-03-20 Delta Faucet Company Ozone distribution in a faucet
US10640878B2 (en) 2015-11-12 2020-05-05 Delta Faucet Company Ozone generator for a faucet
US10767270B2 (en) 2015-07-13 2020-09-08 Delta Faucet Company Electrode for an ozone generator
ES2888173A1 (es) * 2020-06-25 2021-12-30 Sanchez Silverio Duenas Robot limpiador de superficies con sistema de desinfección
US11458214B2 (en) 2015-12-21 2022-10-04 Delta Faucet Company Fluid delivery system including a disinfectant device
CN115297951A (zh) * 2020-03-24 2022-11-04 三菱电机株式会社 膜清洗装置以及膜分离活性污泥***和膜清洗方法

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WO2006080829A1 (fr) * 2005-01-28 2006-08-03 Roberto Rojo Chan Dispositif destine a l'application d'un melange liquide-ozone sous forme de brouillard pour la desinfection de surfaces
DE102005004237B3 (de) * 2005-01-28 2006-09-07 Medizin & Service Gmbh Desinfektionssystem und Verfahren zur Desinfektion von zu desinfizierenden Teilen
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US8147687B2 (en) 2007-07-31 2012-04-03 Mitsui Engineering & Shipbuilding Co., Ltd. Ballast water treatment apparatus
US8147686B2 (en) 2007-07-31 2012-04-03 Mitsui Engineering & Shipbuilding Co., Ltd Ballast water treatment apparatus
WO2010001279A1 (fr) * 2008-07-04 2010-01-07 Cape Winds Trading 27 Cc Dispositif de désinfection
WO2010104477A1 (fr) * 2009-03-10 2010-09-16 Beng Lai Koh Procédé et système de traitement de l'eau et des eaux usées
DE102009026377A1 (de) * 2009-08-14 2011-02-24 Brensing, Karl August, Dr. Anlage zur Desinfektion und Sanitisierung
EP2582472A4 (fr) * 2010-06-16 2016-02-24 Food Safety Technology Llc Système de production et de distribution d'un fluide ozoné
EP2433909B1 (fr) * 2010-09-24 2015-07-01 Evergreen Tecno Platns S.r.l. Système de désinfection de l' eau à l'aide d'ozone.
JP2013034911A (ja) * 2011-08-03 2013-02-21 Nissan Rinkai Construction Co Ltd オゾン水散布システム
US9919939B2 (en) 2011-12-06 2018-03-20 Delta Faucet Company Ozone distribution in a faucet
US10947138B2 (en) 2011-12-06 2021-03-16 Delta Faucet Company Ozone distribution in a faucet
CN105451858A (zh) * 2013-06-07 2016-03-30 Lvd收购有限责任公司 利用臭氧给表面消毒并处理水的设备和方法
WO2014197759A1 (fr) * 2013-06-07 2014-12-11 Lvd Acquisition, Llc Dispositif et procédé de désinfection de surfaces et de traitement d'eau a l'aide d'ozone
US9969632B2 (en) 2013-06-07 2018-05-15 Lvd Acquisition, Llc Device and method for sanitizing surfaces and treating water using ozone
US10767270B2 (en) 2015-07-13 2020-09-08 Delta Faucet Company Electrode for an ozone generator
US10640878B2 (en) 2015-11-12 2020-05-05 Delta Faucet Company Ozone generator for a faucet
US11634828B2 (en) 2015-11-12 2023-04-25 Delta Faucet Company Ozone generator for a faucet
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US11458214B2 (en) 2015-12-21 2022-10-04 Delta Faucet Company Fluid delivery system including a disinfectant device
CN106865737A (zh) * 2017-03-30 2017-06-20 森克赛斯环保设备无锡有限公司 一种活氧水机
CN115297951A (zh) * 2020-03-24 2022-11-04 三菱电机株式会社 膜清洗装置以及膜分离活性污泥***和膜清洗方法
CN115297951B (zh) * 2020-03-24 2023-02-28 三菱电机株式会社 膜清洗装置以及膜分离活性污泥***和膜清洗方法
ES2888173A1 (es) * 2020-06-25 2021-12-30 Sanchez Silverio Duenas Robot limpiador de superficies con sistema de desinfección

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