Abstract: The present invention involves a purification system for water which utilizes repetitive ozone impregnation of the water to create a higher level of ozone for purification and/or sterilization purposes. The system may utilize a water softener and/or reverse osmosis system to remove minerals from the water supplied by a water supplier such as a municipality. Alternatively, demineralized water may be supplied directly to the system. The system includes a pump which receives the water and pumps the water into an expansion tank. From the expansion tank, the water flows through an ozone impregnation device in which the water receives the ozone. After impregnation, water flows into a holding tank. The pump is also in communication with an external demand source such that if ozone impregnated water is needed, water flows back to the pump and is diverted to the source. If no demand sensed, water flows back to the pump and is recycled so that the water is re-impregnated with ozone.

Abstract: The present invention is a solar powered aeration system that incorporates a battery. The device can be used for improvement of water bodies for use in aquaculture systems, reservoirs, water storage tanks, fish tanks, artificial ponds and lakes, and the like. The device does not require connection to the electrical power grid and may be used in any location. Further, the device can be used during periods of low oxygen content, which is typically the period of day just before sunrise. Additionally, the device uses a laminar column of water to enhance circulation of the water body. Increased efficiency can be obtained by matching the diffuser to the pump size, which is important in solar powered applications.

Abstract: A liquid barrier is disclosed that comprises a porous hydrophobic material which allows the flow of gases (e.g., corrosive gases) but inhibits the flow of liquids, including aqueous liquids. A specific embodiment of the invention relates to a venturi which incorporates a liquid barrier that allows the flow of gases (e.g., ozone and air) but inhibits the flow of liquids. Another specific embodiment of the invention relates to an ozone generation system that includes an ozone generator and a liquid barrier made of a porous hydrophobic material, which allows the flow of ozone but inhibits the flow back of liquids to the ozone generator. The invention also encompasses methods of introducing a gas into an aqueous liquid, wherein the gas passes through a liquid barrier prior to being introduced into the aqueous liquid.

Abstract: A method of handling grey water and optionally at least a portion of the black water for disposal from vehicles such as boats, recreational vehicles or rural dwellings such as cottages, camps and the like, not having direct access to sewer systems, involves the treatment of such waste water with ozone. A batch system is used whereby a predetermined quantity of water to be treated is captured in a treatment tank. A circulating pump withdraws water from the tank and pushes the water along a treatment conduit, the conduit containing an ozone/water mixer and returns the water to the treatment tank. The treatment conduit has a discharge valve that is maintained in a closed position for a selected period of time. Ozone is fed to the ozone/water mixer from an ozone generator which is advantageously fitted with an air pump to pressurize the feed gas.

Abstract: A method for purifying a flow of water, by eliminating any Legionella bacteria present therein using (a) an ozone generator, (b) an ozone injector for injecting ozone into the flow of water, (c) a mixing chamber for mixing the ozone with the flow of water; (d) an outlet for the flow of water, and (e) an electronic controller for the operation thereof: wherein the mixing chamber is of an inner geometry such as to create turbulence in the flow of water therein.

Abstract: A method for denitrification of water, in which the water to be denitrified is made to flow over a porous carrier which comprises a transition metal, preferably palladium, used in an amount between 0.01 and 5% by weight on the carrier and on which denitrifying bacterial strains capable of surviving in the presence of hydrogen are made to adhere, and in which hydrogen is used as a reducing agent and the pH of the reaction is adjusted to values of 4.5 to 7.8 preferably by using carbon dioxide.

Abstract: A method in treating aqueous feedstream in diverse plant site environments is disclosed for improving filter flux rates, cleaning filter media and prolonging useful operative life of media. In preferred embodiments the method is provided with steps for contacting, reacting, pressurizing and equalizing ozone and feedstream within a central area or multiple areas and sustaining high pressure throughout the system to achieve qualitatively and quantitatively improved permeate products, and reject for recycle. The method and system provide an improved cleaning and processing system characterized by an ozone-concentrated, homogeneous single phase liquid conversion of a generated ozone gas mixture and a feedstream source containing organic and inorganic pollutants. The method improves and monitors ozone oxidizing power and reflecting ORP values, and provides further media cleaning and improved oxidation reactions for attack on pollutants on each cycle/recycle operation.

Abstract: A process for treating organic wastewater which comprises treating organic wastewater with ozone and successively with alkali and introducing said alkali treated organic wastewater into an anaerobic digestion tank for anaerobic digestion. Instead of the ozone and successive alkali treatments, ozone treatment in the presence of hydrogen peroxide or ozone treatment under UV radiation is applicable. Prior to introduction into the anaerobic digestion tank, the treated wastewater may be separated into solids and phosphorus is preferably recovered from the solution. Solubilization of solids in the organic wastewater and transformation of organic substances into methane are greatly enhanced and sludge to be disposed is greatly reduced. Moreover, phosphorus is efficiently eluted out and recovered from solids in the organic wastewater.

Abstract: A process for preventing formation of scale which comprises adding, into a water system in which ozone is used for disinfection, a polymeric scale inhibitor having a high molecular weight which gives an average molecular weight within an optimum range for preventing formation of scale after the polymeric scale inhibitor is decomposed with ozone. In accordance with the process, the polymeric scale inhibitor having an average molecular weight within the optimum range for preventing formation of scale is present in the water system in which ozone is used for disinfection and formation of scale is effectively prevented.

Abstract: An improved method of treating wastewater to remove ammonia and fluoride is provided. The method comprises the steps of chemical destruction of ammonia with an oxidizing agent, followed by treatment with calcium salts to precipitate insoluble calcium fluoride, and filtration to remove the precipitate.

Abstract: A method for increasing the quantity of a gas, e.g., ozone, dissolved in a liquid, e.g., ultrapure deionized water, is provided. The gas to be dissolved is introduced to the liquid under pressure and the resulting admixture delivered to the end-use station under pressure. Thus, the method and system of the present invention are able to provide, e.g., ozonated water, continuously, efficiently and without cooling, thus providing a simple, cost efficient method of producing high concentration ozonated water for application to an in-process semiconductor wafer.

Abstract: An ozone oxidizing apparatus in which, after fine air bubbles are distributed in a fluid (a waste water) delivered together with air to increase a dissolvable oxygen concentration, when ozone evenly contacts a contaminant of the fluid, oxidation is maximized by virtue of the instantaneous catalytic action of the oxygen air bubbles, thereby effectively removing the contaminant contained in the fluid.

Abstract: A system and method are provided which removes bromine biocide used in effluent process streams without the use of chemicals or complex mechanical systems. In particular, the system and method of the present invention remove bromine biocide by photodissociating the bromine, thereby forming innocuous salts. Ultraviolet energy may be used to provide the energy for photodissociation, in particular ultraviolet energy supplied by medium pressure Hg vapor lamps.

Abstract: The present invention relates to a system for water treatment using ozone. More particularly to a system using an improved ozone generator that is simple, compact, portable, efficient and easy to clean.

Abstract: A method to treat ballast water comprises injecting ozone into water loading into a sea faring vessel prior to charging the water into a ballast tank; and charging the ozone injected water into the ballast tank. A system for treating ballast water comprises a sea faring vessel including at least one ballast tank; an ozone generator that generates ozone, a ballast water conduit that uptakes water through a loading port of a sea faring vessel and conducts the water to load the ballast tank; and an ozone feed line that injects ozone from the generator into water in the conduit at an injection point located upstream to an intersection of the conduit with the ballast tank.

Abstract: An apparatus and water treatment method uses Sonically Induced Dissociative Reactions (SIDR) and Multi-bubble Sonoluminescence (MBSL) to facilitate Sonically Bounds State Oxidation (SBSO) within a SIDR chamber. Included within the SIDR chamber is counter-flow ultrasonic radiation and an optional binding agent.

Abstract: A system for producing ozone water is provided for reproducing the polluted water as environmentally friendly. The ozone water-producing system and its control method in which an ozone water-producing apparatus can be all purposely used indoors or outdoors irrespective of the condition of a flow channel and the condition of ozone generation is maintained in an optimum state so as to improve the performance of the system in its entirety as well as a symptom of the backflow of the ozone water due to a blocking of an outlet in the process of discharging the ozone water is previously detected to prevent deterioration of the system performance and ensure stability in use. The ozone water-producing system comprises influent air control means, an injector, a gas-liquid separator, and an ozone water-backflow preventing means.

Abstract: Contaminated liquids are treated by ozonation in a pressurized environment. Ozone is injected into a contaminated liquid to form a gas/liquid mixture. The mixture is injected into a mixing chamber for providing turbulent gas/liquid contact. The mixture is flowed from the mixing chamber into a pressurized reaction vessel. In an alternative embodiment, contaminated liquid is treated in situ using pressurized injection wells for injecting ozone-containing liquid.

Abstract: Disclosed are an oxidation catalyst suitable for use in treatment of nonbiodegradable wastewater, a method for preparing the same, a method for recycling the same and a method for treating wastewater using the same. The oxidation catalyst comprises an activated carbon support having surface reformed with a tin compound, in the form of particles, powders and pellets, and metal ions impregnated to surface of the support. The preparation method of the oxidation catalyst comprises reforming surface of an activated carbon support in the form of particles, powders and pellets, impregnating various metal ions to surface of the support, drying the metal-impregnated support, and sintering the metal-impregnated support. In addition, the recycling method of the oxidation catalyst comprises drying the oxidation catalyst used for treatment of nonbiodegradable wastewater, and warming-up at 50-100° C. in a double boiler or sintering at 150-500° C. in a furnace the dried oxidation catalyst.

Abstract: A compact portable modular wastewater treatment system which integrates several processing technologies to provide a substantially purified water source. A wastewater stream is sent through an initial filtration step. The filtered wastewater is then subjected to electrocoagulation and then further filtered. The resulting stream containing substantially only organics is then treated in an advanced oxidation process which can include passing an electrical current through the water during the oxidation process. The partially treated water is then passed through ion-exchange columns to polish ammonium and other contaminants. The ion-exchange columns are cycled through regeneration cycles to provide continuous ion-exchange medium. The ammonium rich brine solution used in regeneration is subjected to an ammonium destruct process and then reused in regenerating ion-exchange columns.

Abstract: Disclosed is a process for producing ozone-containing sterilizing water and apparatus used in the process. Ozone-containing sterilizing water can be continuously produced by maintaining a mixture of raw water and ozone gas under a predetermined pressure and time with the use of two separate compartments of a compression mix.

Abstract: The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a second concentration. The ozonated water of a second concentration is supplied to a first process tool. Ozonated water from the ozonated water generator is supplied to a second process tool while supplying the ozonated water of the second concentration to the first process tool.

Abstract: A process for treating water to remove concentrations of nutrients and pollutants using ozone prior or after the water is exposed to natural filtration by periphyton or other aquatic plants. A system employs a deep water tank containing water to be treated is injected at the bottom with concentrated ozonated water to expose the water to be treated to ozone. The treated water exits from the tope of the tank whereby it is flowed over aquatic plant system to remove the undesired matter, such as pesticides. The process can be repeated successively to further treat the water if desired.

Abstract: A method and apparatus for treating an oxygen containing gas (generally air) and/or water in an appliance such as a refrigerator washing machine, dryer or dishwasher with ozone so as to disinfect the water used within the appliance and use the ozone in the air to disinfect the interior space and the contents of the appliance. Arrangements may be made to provide disinfected water on demand. The ozone containing gas is provided when needed, or in the case of a refrigerator, at a time of the day when the refrigerator is not generally in use. The generator may include a source of ultraviolet radiation, a plenum for the air and a plenum for the water. The plenum for the water may be in the form of a tube which is transparent to ultraviolet. The diameter of the tube is preferably selected so that plug flow of water through the tube occurs. The ozone containing air and the disinfected water may be provided to a location remote from the appliance.

Abstract: The presently disclosed disinfection process for use in the processing of foodstuffs is designed as an intervention step in poultry processing to allow for continuous on-line processing of poultry carcasses that may have accidentally become contaminated during the evisceration process. Such on-line processing is designed to replace the need for off-line manual washing and cleaning of the contaminated carcasses. By eliminating such off-line manual washing, food safety will be enhanced due to the elimination of the physical handling of carcasses and the cross-contamination that may result from such physical handling. An additional benefit is that the production process will also be able to run with a reduced number of interruptions, which will result in a more efficient production process.

Abstract: A process and facility for treating and disinfecting water supplies comprising first treating the water with chlorine, then with ammonia, then with ozone to substantially disinfect the water, then passing the water through a filter with microorganisms to reduce the amount of small organic compounds and carbon in the water and finally again treating with chlorine so as to produce a residual level of chlorine in the water.

Abstract: A periodic ozone treatment system for a showering tower type water cooling system worked once daily for a period of 10˜30 minutes essentially comprises: an ozone dissolving tank to prepare high density ozone solution therein and periodically fed to the cooling system from a top of the showering tower automatically; a bypass piping connected from a heated water recycling pipe after a heat exchanging in a main functional heat exchanger to a sand filter to shift recycling water for washing the sand in the filter by a reverse osmosis operation during the period while the ozone treatment system is working; and an ozone decomposition reactor disposed at a front of heat exchanger free from corrosion.

Abstract: An apparutus and a method for ozone-treating biosludges and reducing biosludges occurring upon a biological treatment of aqueous organic waste, wherein the apparatus is made up of a plurality of reactors for effecting the ozone treatment of the biosludge by contacting the biosludge with an ozone-containing gas, biosludge passages for flowing the biosludge to be ozone-treated through all the reactors in series, gas supply means for supplying the ozone-containing gas to each of the reactors, a pressurization means for maintaining each of the reactors under a pressurized condition and stirrers each disposed in each reactor for realizing a nearly equalized ozone absorption rate for all the reactors.

Abstract: In a method for processing a biologically hardly degradable waste water including benzene ring materials, the waste water is oxidized by using ozone to produce oxalic acid. Then, the oxalic acid is reacted using a chemical reaction to produce oxalate. Finally, the oxalate is separated out from the waste water.

Abstract: A system for production of water having dissolved ozone includes a water feeding section, a container part, an ozone feeding part for feeding ozone to a mixing part dissolving ozone in the water, the mixing part drawing water from the lower part of the container, an ozone measuring part for measuring the ozone concentration of the water in the container, a water pump for circulating the water from the lower part to an upper part of the container in dependence of the measured ozone concentration and from the ozone feeding section to the mixing part in dependence of a predetermined ozone concentration, the container having an outlet for water having the predetermined concentration of ozone.

Abstract: Disclosed are waste processing systems capable of being used on-board a transport such as a train, bus, airplane, boat, or other similar vehicles. The liquid waste is evaporated and condensed primarily as water vapor. The resulting liquid may be safely discharged in most places without adverse environmental and health effects. If desired, the liquid can be stored and reused for non-potable applications such as toilet flushing. The solid waste is converted to inert ash or carbon and may be either stored in a filter or discharged as carbon or ash into the water, air, or onto the railroad tracks. The system may also be used in stationary or semi-stationary applications where on-site treatment of waste may be desired.

Abstract: A method of treating a site containing contaminants and apparatus are described The method and apparatus sparges the site with an air/ozone gas stream delivered with a hydroperoxide, which is a substantial byproduct of a reaction of a contaminant present in the aquifer or soil formation with the ozone.

Abstract: The present invention relates to a process and a system for processing waste water containing organic compounds. The system includes a UV/ozone oxidation removal module, or one or more removal modules connected in series whereas such a serial connection can be continuous or discontinuous. A UV/ozone oxidation removal module mainly includes an ozone generator, an ozone injector, an ozone dissolution tank, an ozone decomposition device, a UV reaction tank, a recycling pipeline. The efficiency of the UV/ozone oxidation removal module is controlled by the recycling ratio, the ozone concentration, and the intensity of UV light.

Abstract: Spent caustic and other wastewater streams are pretreated by continuous chemical oxidation. According to one aspect, a wastewater stream is pretreated by continuous chemical oxidation in a plug flow reactor. According to another aspect, a catalyst and an oxidizer are fed into a wastewater stream at first and second predetermined points of addition. Compounds in the wastewater stream susceptible to chemical oxidation are reacted with the chemical oxidizer. A modular, optionally fully automated apparatus is provided for pretreating spent caustic and other wastewater streams.

Abstract: A system for treating a contaminated liquid wherein atmospheric air is fed into an oxygen generator with the resulting gases fed into an ozone generator and the resulting gases fed into a treatment tower as the contaminated liquid flows through the treatment tower is modified by locating apparatus between the oxygen generator and the ozone generator which apparatus receives the gases from the oxygen generator, ionizes such gases and feeds the ionized gases to the ozone generator.

Abstract: A water purification system for a swimming pool, pond, aquatic mammal tank, spa or fountain, which is simple to operate, low in maintenance, and highly reliable. The system takes advantage of synergistic benefits derived from the combination of ozonation and electrolytic chlorination in the same system. Combining both of the technologies of Ozonation and Electrolysis allows as in-site production of at least one of chlorine dioxide that is used as a disinfectant agent for treating water reservoirs.

Abstract: A method and apparatus for providing sanitized water in a bottled water dispenser includes a reservoir and one or more dispensing spigots. An ozone generating system generates ozone for sanitizing the water. Ozone is generated and collected within an ozone generator housing. A blower transmits air to the housing, the air carrying the ozone through flowlines to an air diffuser that is positioned inside the reservoir of the water dispenser. The flowlines can be used to sanitize one or more of the reservoir, spigot(s), and/or channel that connects the reservoir and spigot(s). A return flowline or lines can return ozone from the spigot to one or both of the channel and/or reservoir for further use in sanitization.

Abstract: A method and apparatus for treating an oxygen containing gas (generally air) and/or water in an appliance such as a refrigerator washing machine, dryer or dishwasher with ozone so as to disinfect the water used within the appliance and use the ozone in the air to disinfect the interior space and the contents of the appliance. Arrangements may be made to provide disinfected water on demand. The ozone containing gas is provided when needed, or in the case of a refrigerator, at a time of the day when the refrigerator is not generally in use. The generator may include a source of ultraviolet radiation, a plenum for the air and a plenum for the water. The plenum for the water may be in the form of a tube which is transparent to ultraviolet. The diameter of the tube is preferably selected so that plug flow of water through the tube occurs. The ozone containing air and the disinfected water may be provided to a location remote from the appliance.

Abstract: A water purification system for a swimming pool, pond, aquatic mammal tank, spa or fountain, which is simple to operate, low in maintenance, and highly reliable. The system takes advantage of synergistic benefits derived from the combination of ozonation and electrolytic chlorination in the same system. Combining both of the technologies of Ozonation and Electrolysis allows as in-site production of at least one of chlorine dioxide that is used as a disinfectant agent for treating water reservoirs.

Abstract: A method for the treatment of pool water with ozone at concentrations less than previously employed. Ozonation, as described herein, provides several distinct advantages including but not limited to inactivation of Cryptosporidium and other water borne microorganisms, reduction of combined chlorine concentrations and oxidation of chloramines.

Abstract: The present invention provides an ozone generation and delivery system that lends itself to small scale applications and requires very low maintenance. The system includes an anode reservoir and a cathode phase separator each having a hydrophobic membrane to allow phase separation of produced gases from water. The system may be configured to operate passively with no moving parts or in a self-pressurizing manner with the inclusion of a pressure controlling device or valve in the gas outlet of the anode reservoir. The hydrogen gas, ozone gas and water containing ozone may be delivered under pressure.

Abstract: A process and facility for treating and disinfecting water supplies comprising first treating the water with chlorine, then with ammonia, then with ozone to substantially disinfect the water, then passing the water through a filter with microorganisms to reduce the amount of small organic compounds and carbon in the water and finally again treating with chlorine so as to produce a residual level of chlorine in the water.

Abstract: A device for treating liquid medium has an ultrasound emitter located relative to a compartment of a container holding a liquid medium and a microbubble emitter located relative to the compartment. The ultrasound emitter emits high-frequency ultrasound between about 200 KHz and 10 MHz. The microbubble emitter emits bubbles with an average diameter of less than 1 mm.

Abstract: A method for removing biofilm from, and/or for preventing biofilm from forming on, an interior surface of a conduit that receives a supply of water, is performed by disabling the supply of water to the conduit, and passing an ozone-containing gas to the conduit. The ozone-containing gas can be generated from an oxygen-containing gas that is exposed to either a corona discharge or ultraviolet radiation. In an alternate embodiment, the water is disinfected by the ultraviolet radiation. The invention is especially suited for use with dental equipment.

Abstract: A method and apparatus for providing sanitized water in a bottled water dispenser uses a refrigeration system to cool the water and an ozone generating system to generate ozone for sanitizing the water. Ozone is generated and collected within an ozone generator housing. A blower transmits air to the housing, the air carrying the ozone through a flow line to an air diffuser that is positioned inside the reservoir of the water dispenser. A time deactivates the refrigeration system and at about the same time activates the ozone generator and the blower. The blower continues to pump air for a selected time period after the ozone generator is shut down, the water in the reservoir having been sanitized. This action dispenses any ozone odor. The pump then shuts off and the refrigeration system resumes operation of cooling the water in the reservoir.

Abstract: A process for the treatment of an aqueous media having contaminants therein, including adding hydrogen peroxide to the aqueous media, exposing the aqueous media to a catalytic environment, removing the aqueous media from the catalytic environment prior to the aqueous media having a five minute residence time within the catalytic environment, thereafter adding ozone to the aqueous media, and allowing the ozone and aqueous media to interact outside of the presence of the catalytic environment.

Abstract: An ozone-generating faucet includes an ozone generator mounted on a mixer tube between a water supply tube and a spout, a water intake valve connected between the mixer tube and the water supply tube to control supply of water from the water supply tube to the mixer tube, an electromagnetic valve controlled to close/open the water intake valve, the ozone generator including an ozone-generating unit, a control circuit board, and an ozone supply tube connected between the ozone-generating unit and the mixer tube, the control circuit board being controlled by control switch to turn on the ozone generator and open the electromagnetic valve, enabling ozone to be supplied to water running through the mixer tube.

Abstract: This invention relates to remediation systems, and more particularly to remediation systems for water, soil, and sediment bodies using thin-layer coated microbubbles.

Abstract: A method for treating a liquid (e.g. water) with a gas (e.g. air) containing ozone includes passing air through an corona discharge ozone generator to produce air containing ozone and introducing the air containing ozone into the liquid; and, periodically de-energizing the ozone generator and passing air through the ozone generator.

Abstract: The present invention relates to a process of oxidation, of the wet oxidation or ozonization type, of a liquid contained in a reactor. The gas of the gas headspace is aspirated into the liquid, and the portion which is not dissolved in the liquid is recovered in the gas headspace. The agitation means creates a flow of liquid immediately adjacent to the end of the duct opening into the liquid, and generates a gas/liquid dispersion in the zone, within which the liquid reacts with the gas, then conveys and ejects the said dispersion at its periphery, such that the gas is dissolved in the liquid in the zone extending from the agitation means to the surface of the liquid. The said process is particularly suitable for oxidations which make use of considerable quantities of oxygen or of ozone. It is particularly applied for the oxidation of papermaking liquors.