| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210748100 | Ultraviolet radiation | 54 |
| 20100089839 | Device and Process for Improving Mixing In The UV Disinfection of Liquids - A device is proposed for the UV disinfection of liquids in an open or closed channel, having an inflow for the liquid to be disinfected, at least one UV irradiator arranged downstream of the inflow in a main flow direction and also having an outflow arranged downstream of the UV irradiator, in which a mixing device, driven by an electric motor, is arranged between the inflow and the at least one UV irradiator, which mixing device is set up for generating a cross-flow having at least one velocity component transverse to the main flow direction in order to improve mixing of the liquid. | 04-15-2010 |
| 20120292260 | WATER PURIFICATION SYSTEM - A water treatment system is provided. The system includes a first container and a pump fluidly coupled to the first container. A filter is fluidly coupled to the pump opposite the first container. A valve having an inlet fluidly is coupled to the filter opposite the pump, the valve having a first outlet fluidly coupled to the first container and a second outlet. At least one UV germicidal light is fluidly coupled to the second outlet, wherein a fluid from the second outlet flows over at least a portion of the length of the at least one UV germicidal light. A second container is fluidly coupled to the second conduit. At least one electrical generator is configured to couple with a bicycle, the at least one electrical generator being electrically coupled to provide electrical power to the at least one UV germicidal bulb and the pump. | 11-22-2012 |
| 20100176066 | Method of Improving Efficiency of UV Photolysis of Peracetic Acid for Disinfection and Organic Destruction - A method of disinfecting municipal wastewaters comprises contacting the wastewater with a peracetic acid solution containing a relatively low amount of hydrogen peroxide in the presence of ultraviolet irradiation. In another aspect, a source of UV irradiation is selected to emit energy at one or more wavelengths at which PAA absorption is optimized or economized. The enhanced UV-PAA process may be used in a variety of other disinfection and organic destruction processes. | 07-15-2010 |
| 20110233142 | Water Purification System and Method - A water purification system and method for removing inorganic, organic and biological species from water. The system and method involve simultaneous treatment of water using mild heat, a photoactive catalyst such as titanium dioxide and UV irradiation. | 09-29-2011 |
| 20100294726 | UV REACTOR DESIGN HAVING PRESSURE EQUALIZING MANIFOLD FOR INCREASING UV FLUX EFFICIENCY - The disclosed principles employ a UV reactor design for photo-based treatment of contaminated fluid media using a concentric single light source/single sleeve design, with multiple such concentric light source/sleeve units placed in parallel. In one embodiment, such a reactor may comprise an inlet manifold and an outlet manifold, and a plurality of tubular chambers connecting the inlet manifold to the outlet manifold. A plurality of such irradiating units are located within corresponding ones of the tubular chambers such that a fluid path is provided between each of the transparent sleeves and its corresponding tubular chamber where the contaminated fluid is irradiated as it passes through the chambers. The inlet ends of all of the chambers are connected to a single fluid intake manifold. This design allows the contaminated fluid pressure and flow to be evenly distributed among all of the fluid chambers via the intake manifold. | 11-25-2010 |
| 20110024365 | BAFFLE PLATES FOR AN ULTRAVIOLET REACTOR - An ultraviolet reactor for treating a fluid. The reactor includes a vessel having an inlet for receiving fluid and an outlet for discharging fluid. The reactor further includes an ultraviolet light source and baffle plates. The baffle plates include holes arranged in a predetermined pattern for providing plug flow in areas in the reactor near the ultraviolet light source. | 02-03-2011 |
| 20110042326 | PHOTOCATALYTICALLY ACTIVE TIO2-MOLDED BODIES - The present invention relates to a method of purifying wastewater by contacting the wastewater which is to be purified with a rod-shaped TiO | 02-24-2011 |
| 20110240564 | Apparatus for Purifying Liquids, in Particular for Purifying Ballast Water - The invention relates to an apparatus for purifying liquids, in particular for purifying ballast water. | 10-06-2011 |
| 20110240566 | PHOTO-CATALYZING FLUID MOBILIZING SYSTEM AND METHOD - A photo-catalyzing fluid mobilizing system and method are disclosed. A chamber has a power source. A fluid mobilizer is mounted in the chamber and connected with the power source to mobilize a fluid through the chamber. The fluid mobilizer includes one or more fan blades that are coated with a photo catalyst. A UV light source is mounted in the chamber proximate the fluid mobilizer and connected with the power source to catalyze the photo catalyst coating the blades to purifier the fluid being mobilized thereover. | 10-06-2011 |
| 20110120957 | Method for Treating Liquids - The present invention relates to a method for treating fluids, characterised in the steps of radiating the fluid with UV light, producing and dispersing gas bubbles in the fluid in the rays of the UV light, in order to increase the scattering of the UV light in the liquid. The invention also relates to a device for performing the method. | 05-26-2011 |
| 20110174742 | METHOD AND DEVICE FOR WATER RENOVATION - With a method for renovating wastewater, the wastewater is fed into an electro flocculation cell (E) and is subject to electro flocculation. The electro flocculate (WF) processed in the electro flocculation cell is fed into a ripening tank (R) and remains there. The electro flocculate (WF) originating from the ripening tank is filtered in a filter (F). The device for renovating wastewater comprises an electro flocculation cell (E), a ripening tank (R) connected downstream of the electro flocculation cell (E), and a filter (F) connected downstream of the ripening tank. The electro flocculation cell (E) is provided with moveable electrodes. The ripening tank (R) comprises a ventilation element (R | 07-21-2011 |
| 20110163045 | METHOD AND SYSTEM FOR TREATING CONTAMINATED WATER - Methods and systems for treatment, remediation, and purification of contaminated water at an optimal pH for are provided herein, as well as a database for use in said methods and systems. The methods and systems are based on identifying one or more contaminants in the contaminated water, and identifying an optimal pH for performing direct photodegradation of the contaminant(s). | 07-07-2011 |
| 20110163044 | CERAMIC STRUCTURE FOR WATER TREATMENT, WATER TREATMENT APPARATUS AND METHOD - A ceramic structure for water treatment, a water treatment apparatus and method are provided. Immersion efficiency of a photo catalyst and a specific surface area of the immersed photo catalyst can be improved using a ceramic medium including a ceramic paper prepared of a ceramic fiber. Accordingly, it is possible to provide the water treatment apparatus and method capable of increasing decomposition efficiency of contaminated materials due to irradiation of ultraviolet light, and so on, enabling continuous purification treatment, and remarkably reducing preparation, management and water treatment expenses. | 07-07-2011 |
| 20100025337 | Self-Contained UV-C Purification System - A portable UV-C purification system is provided that includes a current reduction technique for an electric pump to reduce power demands on an associated generator to thereby produce a light weight and efficient system. | 02-04-2010 |
| 20110215055 | UV IRRADIATION APPARATUS AND METHOD - A method and an apparatus are described for use in the irradiation of fluids. The apparatus has an elongate conduit ( | 09-08-2011 |
| 20100320156 | Oxidative Treatment Method - The present invention provides a method for oxidizing a substance (e.g., in a waste stream, drinking water, a paper pulp slurry, or on a surface), which uses free radicals and reactive species generated from multiple oxidants. The method comprises combining peroxynitrite or peroxynitrous acid and at least one additional oxidizing agent for a period of time sufficient to oxidize the substance of interest. The peroxynitrite or peroxynitrous acid preferably is formed by irradiation of nitrate ion and/or nitric acid (e.g., with UV or gamma rays). The yield of free radicals and reactive species, which are the intermediate species that perform the oxidation may be increased by addition of a catalysts, electromagnetic radiation, sonic waves, and/or electrolysis. | 12-23-2010 |
| 20120000860 | DEVICE FOR PURIFYING FLUID - A device for purifying a fluid is disclosed. The aforesaid device comprises: (a) a passage adapted for conducting a flow of the fluid, said passage provided with input and output openings; (b) a plurality of elongate members coated with a titanium oxide disposed within the passage; (c) fastening means for mechanically fixating terminals of the elongate members within the passage; (d) at least one source of ultraviolet radiation adapted for illuminating the elongate members; (e) pumping means adapted for generating the fluid flow through the passage from the input opening to the output opening. The fastening means comprises at least two fasteners. Each fastener comprises two mutually orthogonal spaced apart pluralities of parallel rods. The rods are adapted for restricting lateral displacement of the elongate members. | 01-05-2012 |
| 20120012536 | Water treatment apparatus and process to reduce pipe scale and biomass - A method of treating water in order to minimize scaling and biomass buildup in water conduits or containers in which the treated water is used includes processing ambient air in a chamber including at least one ultraviolet light source to generate an output flow mixture of air and reactive oxygen species (ROS) gasses, controlling the at least one ultraviolet light source, a flow rate of the output flow mixture and an ROS gas ratio in the output flow mixture, mixing a water flow with the output flow mixture to realize a flow of water/ROS gas mixture and outputting the flow of water/ROS gas mixture as the treated water. Preferably, the processing includes generating reactive oxygen species (ROS) gasses in the output flow mixture including at least one of Super Oxide (O | 01-19-2012 |
| 20100314330 | METHOD AND DEVICE FOR TREATING AN EFFLUENT - Method and device for treating a liquid effluent, in which this effluent enters a vessel. An intermediate level of liquid in the vessel is detected; an influx of a dilution liquid into the vessel is instigated; a high level of liquid in the vessel is detected; the influx of dilution liquid is stopped and a discharge of the fluid is instigated; a low level of liquid in the vessel is detected; the discharge of the liquid is stopped; and, while it is being discharged, the discharged liquid is exposed to light radiation in at least one treatment channel. | 12-16-2010 |
| 20110215054 | METHOD AND APPARATUS FOR SOLAR-BASED WATER DISINFECTION - A highly portable solar UV disinfection and water storage container with a uniquely traceable security seal that passively indicates by means of a permanent photochromic color change the efficacy of the UV disinfection process performed upon the drinking water within the sealed container. | 09-08-2011 |
| 20120298591 | METHOD AND ARRANGEMENT FOR A WATER TREATMENT - The invention relates to a water treatment using an UV AOP. | 11-29-2012 |
| 20120279926 | APPARATUS FOR THE TREATMENT OF LIQUIDS - The present invention relates to an apparatus for the treatment of liquids, comprising a filter module with a filter, an inlet for liquid, a first outlet for liquid and a second outlet for filtered liquid, wherein the inlet and the first outlet are positioned on a first side of the filter, and the second outlet is positioned on the second side of the filter, a first UV-treatment module with a first UV-light source, wherein the first UV-treatment module is connected with the first outlet of the filter module and adapted to receive liquid from the filter module, and to expose said liquid to UV-light from the first UV-light source, and a second UV-treatment module with a second UV-light source, wherein the second UV-treatment module is connected with the second outlet of the filter module adapted to receive filtered liquid from the filter module, and to expose said liquid to UV-light from the second UV-light source. | 11-08-2012 |
| 20110309032 | SYSTEM AND METHOD FOR PHOTOCHEMICAL TREATMENT OF LIQUID SUBSTANCES WITH ULTRAVIOLET LIGHT INSIDE LIQUID CONVEYING TUBINGS - A system and method for photochemical treatment of liquid substances with ultraviolet light inside liquid conveying tubings. The system includes an elongated polymeric light guiding liquid conveyance tube having first and second open ends and an internal surface defining the interior and liquid conveying conduit of the tube, and a UV light source, which is optically connected to the interior and liquid conveying conduit of the tube. The light guiding tube includes one or multiple concentric layers of polymeric materials selected from a group that includes thermoplastic and thermosetting polymers, elastomers and composites. The tube has at least one UV light transmitting polymeric material layer having a lower refractive index value than the refractive index value of the liquid substance conveyed within the tube. | 12-22-2011 |
| 20130140244 | APPARATUS AND METHOD FOR TREATING AQUEOUS SOLUTIONS AND CONTAMINANTS THEREIN - The present disclosure is generally directed to devices and methods of treating aqueous solutions to help remove or otherwise reduce levels, concentrations or amounts of one or more contaminants. The present disclosure relates to a apparatus including a substantially self-contained housing or container which is adapted to receive components including at least one counterelectrode (e.g. cathode) and at least one photoelectrode (e.g. anode) provided or arranged around at least one UV light source, and/or receive, contain and/or circulate fluid or aqueous solution. | 06-06-2013 |
| 210748110 | Destroying living organisms | 18 |
| 20130056425 | METHOD AND APPARATUS FOR SOLAR-BASED WATER DISINFECTION - A highly portable solar UV disinfection and water storage container with a uniquely traceable security seal that passively indicates by means of a permanent photochromic color change the efficacy of the UV disinfection process performed upon the drinking water within the sealed container. | 03-07-2013 |
| 20120217207 | WATER PURIFICATION SYSTEM - A water treatment system is provided. The system includes a container having a removably coupled cover. A conduit is coupled to the cover. At least one UV germicidal light bulb is coupled to the conduit, wherein the conduit and at least one UV germicidal light bulb cooperate to arranged the at least one UV germicidal light bulb to be within the container when the cover is coupled to the container. A funnel is coupled to the cover opposite the at least one UV germicidal bulb. A filter is coupled to the cover and fluidly coupled to the funnel, the filter arranged to be within the container when the cover is coupled to the container. At least one electrical generator is configured to couple with a bicycle frame, the at least one electrical generator being electrically coupled to provide electrical power to the at least one UV germicidal bulb. | 08-30-2012 |
| 20120234772 | Microbubble Therapy Method and Generating Apparatus - A micro bubble generating system includes a shell having a well for retaining a first liquid to immerse an object. A micro bubble apparatus is provide to the shell for providing a pressurized mixture of a second liquid and a dissolved gas into the well so as to create a plurality of micro bubbles within the first liquid for engaging the object. One method of using micro bubbles includes providing a fluid mixture, including a saturated gas, to a fluid chamber connected a fitting; and producing a plurality of micro bubbles into a fluid. Another method of using micro bubbles includes providing a fluid mixture, including a saturated gas, into an air entrapment chamber; and producing a plurality of micro bubbles into a fluid. | 09-20-2012 |
| 20100126943 | POWER SAVING TYPE SAFE DRINKING WATER DISCHARGE DEVICE - Disclosed is a power-saving type safe drinking water discharge device to treat cold water from a cooling reservoir ( | 05-27-2010 |
| 20120267322 | METHOD AND SYSTEM FOR PLASMA TREATMENT OF A LIQUID - A system for plasma treatment of a liquid and corresponding uses thereof, the system comprising a chamber having a liquid input conduit and a liquid output conduit, a source of electromagnetic radiation of wavelength λ coupled to the chamber by a waveguide of appropriate width to provide only fundamental mode of the electromagnetic radiation, a focusing means positioned between the waveguide and the chamber for transmissively focusing the electromagnetic radiation incident thereon to a location within the chamber remote from walls of chamber for creating a plasma at the location, characterized in that the plasma is formed entirely within the liquid. | 10-25-2012 |
| 20100258508 | METHOD AND APPARATUS FOR LIQUID DISINFECTION USING LIGHT TRANSPARENT CONDUIT - A UV disinfection system and methods of UV disinfection are provided. The disinfection system may include a UV transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid and two or more radiation sources positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit. The walls of the conduit may be coated with a reflective coating acting as a back-surface mirror for enhancing the performance of the disinfection system. | 10-14-2010 |
| 20100300982 | APPARATUS AND METHOD FOR BALLAST WATER TREATMENT - An apparatus and method for treating ballast water to achieve IMO standards for ballast water includes a reactor fabricated of copper nickel for receiving and discharging ballast water, a UV source for irradiating the water in the presence of copper nickel thereby to generate free radicals for biocidal and bactericidal effects on organisms and microbes entering the reactor with ballast water. | 12-02-2010 |
| 20110011808 | SOLAR WATER PASTEURIZER - In accordance with the present invention, there are provided solar water pasteurizers that are portable, efficient, inexpensive and easy to use. In its simplest form, the solar pasteurizer includes a transparent container such as a bag or envelope that contains at least one energy converting structure and has sufficient insulation to enable heating water to a temperature of at least 60° C. for a time sufficient to achieve pasteurization (typically a period of about one hour at this temperature), and preferably to a temperature of at least 70° C. (at which temperature, a period of only about 6 minutes is required for pasteurization). Invention solar pasteurizers are particularly useful for pasteurizing water. In additional embodiments, invention solar pasteurizers include additional features, such as, for example, a water pasteurization indicator. In accordance with another embodiment of the invention, there are provided methods for pasteurizing water employing solar pasteurizers described herein, as well as kits suitable to convert any transparent water tight container into a solar water pasteurizer. | 01-20-2011 |
| 20110062089 | Method for Treating Liquids with Wave Energy from an Electrical Arc - A method for treating a liquid is disclosed using an apparatus having: (a) a pump volute or hydrocyclone, (b) a throat connected to the pump volute or hydrocyclone head, (c) a parabolic reflector having a vertex, a focus and an opening at the vertex, wherein the opening is connected to the throat such that the vertex and focus are axially aligned with the central axis and the focus is not located within the throat, and (d) a wave energy source having a first electrode within the pump volute or hydrocyclone head that extends into the throat along the central axis of the throat, and a second electrode extending into the parabolic reflector proximate to the focus wherein the second electrode is spaced apart and axially aligned with first electrode. The liquid is supplied to the pump volute or hydrocyclone head and is irradiated by the wave energy source. | 03-17-2011 |
| 20110163046 | Mobile UV Light Treatment Systems and Associated Methods - Of the methods provided herein, one includes a method comprising: providing a turbid treatment fluid having a first microorganism count; placing the turbid treatment fluid in a self-contained, road mobile UV light treatment manifold that comprises a UV light source; irradiating the turbid treatment fluid with the UV light source in the self-contained, road mobile UV light treatment manifold that comprises an attenuating agent so as to reduce the first microorganism count of the turbid treatment fluid to a second microorganism count to form an irradiated treatment fluid, wherein the second microorganism count is less than the first microorganism count; and placing the irradiated treatment fluid having the second microorganism count in a subterranean formation, a pipeline or a downstream refining process. | 07-07-2011 |
| 20120145649 | METHOD AND DEVICE FOR AFFECTING A CHEMICAL OR MECHANICAL PROPERTY OF A TARGET SITE - A method for ultraviolet (UV) liquid disinfection is provided. The method includes flowing liquid to be disinfected through a dielectric conduit and disinfecting the liquid by directing UV-radiation into the liquid within the conduit such that the liquid to be disinfected serves as a flowing liquid wave guide for the UV-radiation using total internal reflection. | 06-14-2012 |
| 20120037571 | METHOD AND APPARATUS FOR SANITIZING WATER USING AN ULTRAVIOLET LIGHT - The present invention provides a method and apparatus for sanitizing consumable water using an ultraviolet light. The water is exposed to the ultraviolet light for a preselected duration of time and at a desired power level to achieve a desired level of sanitization. | 02-16-2012 |
| 20120012537 | Fluid Reconditioning System and Method of Using the Same - In one embodiment, a fluid recondition system includes a container for storing a fluid; a fluid reconditioning module including a microbe-reducing device; and a first and second conduits transporting fluid between the container and the fluid reconditioning module. In another embodiment, the fluid reconditioning module includes an electromagnetic energy emitting device such as a number of ultraviolet lamps. | 01-19-2012 |
| 20100133203 | Blood bag system and process for the inactivation of pathogens in platelet concentrates by use of the blood bag system - The present invention relates to a blood bag system, a method for its manufacture, and a process for reducing pathogens and leucocytes in biological fluids in particular in therapeutic quantities of platelet concentrates (PC) contained in the blood bag system, using UV-light and agitation, wherein part of the plasma of the PC is optionally exchanged against a platelet additive solution. | 06-03-2010 |
| 20120152856 | BOTTLE, SYSTEM AND METHOD FOR STERILIZING A LIQUID - A bottle, a system and a method sterilize a liquid. The bottle has an interior to hold the liquid and an ultraviolet light emitting lamp that extends into the interior. A cord may be attached to the bottle so that pulling the cord may power the ultraviolet light emitting lamp and/or charge a battery used to power the ultraviolet light emitting lamp. The bottle may have a status light that indicates that the ultraviolet light emitting lamp may have an amount of power equal to or greater than a threshold value, such as, for example, an amount of power necessary for the ultraviolet light emitting lamp to operate for ninety seconds. The bottle may have a removable lid located opposite to the ultraviolet light emitting lamp. | 06-21-2012 |
| 20100300983 | METHOD FOR CONTROLLING BACTERIAL GROWTH IN PROCESS WATER - A system for reducing or preventing the growth of organisms in the process water used to coat glass fibers with a formaldehyde-free binder composition. One or more biocides is added to the process water that mitigates the growth of microbes in the water. The biocides are added in an amount sufficient to minimize growth of organisms without adversely affecting the application of the binder composition to the glass fibers. | 12-02-2010 |
| 20120228235 | Method and System for Purifying Water - The present invention describes a method and system for purifying water. The method includes filtering water in one or more filtering units. A filtering unit is configured within a tank of one or more tanks that collects the filtered water. The filtered water is then re-filtered by one or more filter turbines to obtain re-filtered water. The re-filtered water is then purified by one or more treatment units. A treatment unit is connected to a filter turbine. In an embodiment of the invention, the water purified may be a ballast water present in a water vessel. | 09-13-2012 |
| 210748120 | Including generation of treatment chemical | 1 |
| 20130118994 | System and Methods for Wastewater and Produced Water Cleaning and Reclamation - Systems and methods have been developed for treating waste water and produced water, so as to remove contaminants therefrom. The systems and methods allow specifically for the removal of contaminants from produced water from oil and gas wells, fracturing flow-back water, and water- or brine-based drilling fluids. The water is treated by contacting the contaminated fluid with ozone after contacting the fluid with a diffused air system to generate small bubbles for entrainment of some contaminants. Thereafter, the water is contacted with an electro-coagulation system in order to remove flocculants and adjust the pH and the total dissolved solids levels of the fluid. | 05-16-2013 |
| 210748130 | Destroying/degradation of chemical contaminant | 12 |
| 20100294727 | Process for degrading organic substances in an aqueous composition - Process for degrading organic substances in an aqueous composition comprising a step (a) wherein, in a liquid reaction medium, said aqueous composition is reacted with at least one composition comprising hydroxide ions (OH | 11-25-2010 |
| 20110042327 | METHODS AND SYSTEMS FOR TREATING SOUR WATER - A method of removing contaminates from sour water is provided. The method includes producing raw sour water within a syngas production system, and removing the contaminates from the raw sour water using a chemical reaction within a treatment unit to produce treated sour water. The treatment unit is in flow communication with the syngas production system. | 02-24-2011 |
| 210748140 | Photocatalytic | 9 |
| 20130082009 | PHOTOCATALYST COMPOSITION OF MATTER - There is described a photocatalyst composition of matter comprising a support material. A surface of the support material configured to comprise: (i) a first catalytic material for catalyzing the conversion of H | 04-04-2013 |
| 20120091068 | METHOD FOR PHOTOCATALYTIC WATER PURIFICATION - The present invention relates to a process for the purification of a contaminant-containing stream by bringing the stream to be purified into contact with a heterogeneous photocatalyst with irradiation with light, where the bringing into contact takes place in the presence of at least one compound dissolved in the stream and comprising at least one metal selected from the group consisting of iron, chromium, nickel, cobalt, manganese and mixtures thereof, and to the use of a heterogeneous photocatalyst for the purification of a contaminant-containing stream, where, in the stream to be purified, at least one compound comprising at least one metal selected from the group consisting of iron, chromium, nickel, cobalt, manganese and mixtures thereof is present in dissolved form. | 04-19-2012 |
| 20100294728 | PREPARATION OF NANOSIZED COMPOUND ZNO/SNO2 PHOTOCATALYSTS - The various embodiments herein provide a method of preparation nanosized amorphous compound ZnO/SnO2 photocatalysts. According to one embodiment herein, the nanosized amorphous compound ZnO/SnO2 photocatalysts are synthesized through coprecipitation method using NaOH as coprecipitant. According to one embodiment herein, nanosized amorphous compound ZnO/SnO2 photocatalysts are synthesized also by another method with molar ratio of 2:1 in ethanol solvent. Nanosized compound ZnO/SnO | 11-25-2010 |
| 20120118833 | METHOD AND APPARATUS FOR ENHANCED PHOTOCATALYTIC OXIDATIVE DECOLORIZATION OF WASTEWATER CONTAINING REACTIVE ANTHRAQUINONE DYE - Disclosed are a method and apparatus for decolorization of reactive anthraquinone dye-containing wastewater using photocatalytic oxidation, which include inducing high-efficiency photocatalytic oxidation under a controlled salt concentration and pH of wastewater to perform effective decolorization of reactive anthraquinone dye-containing wastewater. The method for decolorization of reactive anthraquinone dye-containing wastewater using photocatalytic oxidation, includes: introducing a photocatalyst and salt into reactive anthraquinone dye-containing wastewater and adjusting pH of the wastewater to a level higher than neutral pH; and irradiating UV to the photocatalyst to carry out cleavage of the reactive anthraquinone dyes through photocatalytic oxidation, thereby accomplishing decolorization of wastewater. | 05-17-2012 |
| 20120205321 | NITROGEN DOPED A2NB4O11, PROCESS FOR PREPARATION THEREOF, AND METHOD FOR DEGRADATION OF ORGANIC POLLUTANTS - The present invention relates to nitrogen doped A | 08-16-2012 |
| 20110303617 | HYBRID PHOTOCATALYSTS, THE METHOD OF THEIR SYNTHESIS AND USE - The subject of the invention is a hybrid photocatalyst which is a layered aluminosilicate, possibly organically modified, containing compounds introduced into the aluminosilicate galleries bearing groups such as porphyrin, rose bengal, anthracene, pyrene, perylene, tetracene, rubrene, naphthalene, phthalocyanines, coumarins, and methylene blue, which are organic chromophores able to absorb visible and/or ultraviolet light and sensitize photochemical reactions. The invention includes also the methods of synthesis and application of the photocatalysts for the photocatalytical degradation of water pollutants. | 12-15-2011 |
| 20100051560 | WASTE WATER TREATMENT APPARATUS AND METHODS - An improved draft tube spout fluid bed (DTSFB) mixing, handling, conveying, and treating apparatus and systems, and methods for operating are provided. The apparatus and systems can accept particulate material and pneumatically or hydraulically conveying the material to mix and/or treat the material. In addition to conveying apparatus, a collection and separation apparatus adapted to receive the conveyed particulate material is also provided. The collection apparatus may include an impaction plate against which the conveyed material is directed to improve mixing and/or treatment. The improved apparatus are characterized by means of controlling the operation of the pneumatic or hydraulic transfer to enhance the mixing and/or reacting by controlling the flow of fluids, for example, air, into and out of the apparatus. The disclosed apparatus may be used to mix particulate material, for example, mortar; react fluids with particulate material; coat particulate material, or simply convey particulate material. | 03-04-2010 |
| 20120228236 | PHOTOCHEMICAL PURIFICATION OF FLUIDS - Apparatus and methods for the photochemical purification of fluids are disclosed. Fluids containing organic, inorganic and/or microbiological contaminants are treated by photochemical processes in a hybrid photoreactor incorporating a photocatalyst bonded to a light transmissive fiber substrate within at least a portion of the fluid and light sources to illuminate the fluid and photocatalyst. Photochemical processes include photocatalytic oxidation, photocatalytic reduction, photoadsorption, photolysis and photodisinfection. Some aspects of the disclosure include optimization of distribution of photocatalyst within the fluid, optimization of mass transport of contaminants by distribution of randomly-oriented fiber substrate, optimization of photoefficiency by control of light source wavelengths, use of LEDs to achieve optimized light source wavelengths, optimization of light delivery from light sources to fluid, and use of a microprocessor to optimize system performance. | 09-13-2012 |
| 20130118995 | SOLAR-ACTIVATED PHOTOCHEMICAL PURIFICATION OF FLUIDS - Disclosed herein are embodiments of a solar-activated photochemical fluid treatment system, some of which comprise a fluid vessel, a porous enclosure positioned inside of the fluid vessel, a porous enclosure positioned inside of the fluid vessel, a fiber substrate contained within the enclosure, and a semiconductor photocatalyst coupled to the fiber substrate. The fluid vessel can be configured to contain a fluid in contact with the photocatalyst such that the fluid treatment system, responsive to solar radiation applied to the photocatalyst and to the fluid in the vessel, induces photochemical modification of contaminants and living organisms in the fluid. Related methods are also disclosed. | 05-16-2013 |
| 210748150 | Utilizing hydrogen peroxide, ozone, or oxygen | 1 |
| 20120298592 | Organic Contaminant Destruction Using Chlorine or Mixed Oxidant Solution and Ultraviolet Light - Method and apparatus for destroying organic contaminants in a fluid. At least one oxidant is added to a contaminated fluid, which is then irradiated with ultraviolet radiation. The oxidant is preferably chlorine-based and generated on-site. The intensity of the radiation is higher than typical AOP processes. Various process parameters, such as the pH and/or flow rate of the contaminated fluid, and/or the relative intensities of various UV wavelength sources, are varied in response to measuring quality indicators. | 11-29-2012 |
