| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210748100 |
Ultraviolet radiation
| 102 |
| 210748160 |
Including chemical treatment
| 55 |
| 210748020 |
Sound waves
| 43 |
| 210748090 |
Visible light
| 20 |
| 210748070 |
Microwaves | 5 |
| 20100116755 | Filter press with integrated radio frequency heating - A method of separating a mixture of liquid and insoluble solids in a filter press may comprise: pumping the mixture into a chamber between two filter plates in the filter press to form a filter cake, wherein the chamber is lined by filter cloths, and wherein, during the pumping, filtrate is forced through the filter cloths and out of the chamber; heating the filter cake in the chamber, wherein, during the heating, filtrate is forced through the filter cloths and out of the chamber, and wherein the heating is by radio frequency irradiation of the filter cake in the chamber; and releasing dried filter cake from the chamber. A filter press system for separating a mixture of liquid and insoluble solids may comprise: a frame; a plurality of filter plates configured to form a stack of parallel plates, each of the plurality of filter plates being movably attached to the frame, the plurality of filter plates further being configured to form a multiplicity of chambers, each of the multiplicity of chambers being lined by filter cloths, wherein the plurality of filter plates, the multiplicity of chambers and the filter cloths are configured to allow filtrate to escape from the chambers while retaining solids from the mixture to form a filter cake; and a radio frequency heater, for directly heating the filter cake in the multiplicity of chambers. The radio frequency heating may include microwave heating, or dielectric heating by lower frequency radio waves in the range of 1 to 100 MHz. | 05-13-2010 |
| 20120111800 | METHOD AND SYSTEM FOR HARVESTING WATER, ENERGY AND BIOFUEL - A method for harvesting potable water and energy from waste that comprises the steps of collecting the waste, separating the waste into a water fraction, a solid fraction, and a gas fraction, sterilizing the water fraction, converting the solid fraction into an energy resource; and scrubbing the gas fraction. | 05-10-2012 |
| 20120305496 | APPARATUS FOR TREATING A FLUID WITH MICROWAVE RADIATION - An apparatus for treating a flow of fluid with microwave radiation, the apparatus comprising: a vessel having a sidewall and opposed first and second end walls defining a substantially cylindrical chamber, the first end wall being disposed a predetermined distance d | 12-06-2012 |
| 20130015144 | MICROWAVE-ENHANCED PROCESS AND SYSTEM TO TREAT FRAC WATER - Described is an improved method and system for remediating Frac water and other emulsions created during hydraulic fracturing. The system can include a first collection unit adapted to store contaminated Frac water, at least one pumping unit adapted to pump a portion of the contaminated Frac water, and a second collection unit for storing remediated Frac water. The system can further include a microwave separation technology (“MST”) unit, an ultra-violet light remediation (“UVLR”) unit, and a chemical additive unit adapted to reduce contamination levels of the contaminated Frac water. The MST unit can work alone, or in combination with the UVLR unit, the chemical additive unit, or both, to further reduce contamination levels of the contaminated Frac water. The system can be deployed at an onsite drilling facility or at a centralized offsite location. By reusing remediated Frac water, entities can realize significant cost savings and better environmental compliance. | 01-17-2013 |
| 20150298994 | MICROWAVE-ENHANCED METHOD FOR TREATING FRAC WATER - A method for remediating Frac water and other emulsions created during hydraulic fracturing includes storing contaminated Frac water in a first collection unit, operating at least one pumping unit to pump a portion of the contaminated Frac water, and storing remediated Frac water in a second collection unit. A microwave separation technology (“MST”) unit, an ultra-violet light remediation (“UVLR”) unit, and a chemical additive unit are used to reduce contamination levels of the contaminated Frac water. The MST unit can work alone, or in combination with the UVLR unit, the chemical additive unit, or both, to further reduce contamination levels of the contaminated Frac water. A system operating according to the method can be deployed at an onsite drilling facility or at a centralized offsite location. By reusing remediated Frac water, entities can realize significant cost savings and better environmental compliance. | 10-22-2015 |
| 210748080 |
Infrared radiation | 4 |
| 20100133202 | WASTEWATER TREATMENT BY HIGH EFFICIENCY HETEROGENEOUS PHOTO-FENTON PROCESS - This invention presents the set-up of a heterogeneous photo-Fenton system for the abatement of organic pollutants in liquid wastewater by means of heterogeneous perovskite-based catalysts, both in powder and in structured form. The proposed method employs, preferably, structured honeycomb monoliths consisting of a perovskite-based material (unsupported catalyst), or structured honeycomb monoliths made of a refractory carrier or a foam impregnated with a solution of salts corresponding to the desired perovskite (supported catalyst). The removal of organic substances is carried out at room temperature and atmospheric pressure, through an oxidation to gaseous CO | 06-03-2010 |
| 20110139726 | FILTRATION MEDIA COATED WITH ZERO-VALENT METALS, THEIR PROCESS OF MAKING, AND USE - The present invention generally relates to filtration media for treating fluids, particularly water. In one aspect, the invention relates to the filtration media coated with nano-sized, zero-valent metals. In another aspect, this invention relates to the processes for making such nano-sized, zero-valent metal-coated filtration media. In yet another aspect, the invention relates to removing microbiological impurities such as microbial pathogens from water by treating the water with filtration media that include nano-sized zero-valent metals. In another aspect, the invention relates to a device comprising such nano-sized, zero-valent metal-coated filtration media for treating water. | 06-16-2011 |
| 20150329383 | GRAVITY FLOW RUNOFF WATER PURIFICATION SYSTEM - A gravity flow runoff water purification system is provided. The gravity flow runoff water purification system of the present invention includes a debris filter, a grit chamber, and a linear electrolytic reactor. The linear electrolytic reactor includes a plurality of cell chambers separated by at least one fixed electrode plate operable to receive a current. A bi-polar anode blend is disposed at the bottom of each chamber and is charged by the at least one electrode plate using a VLF AC current in order to prevent plating over of fixed electrodes. The blend includes a conductive and consumable metal fraction, a conductive and non-consumable fraction, and a non-conductive pours spacer. Water runs through the debris filter, through the grit chamber and into the linear electrolytic reactor via gravity. The water flows through each of the cell chambers, thereby clarifying and purifying the water. | 11-19-2015 |
| 20160185615 | PHOTOCATALYTIC DEGRADATION OF PHARMACEUTICAL DRUGS AND DYES USING VISIBLE ACTIVE BIOX PHOTOCATALYST - Provided is a visible active photocatalyst of formula BiOX wherein X=P or S and process of preparation and use thereof. Use of the catalyst is demonstrated in the photocatalytic degradation of pharmaceutical drug pollutants and pollutant dyes using solar radiation or artificial radiation. | 06-30-2016 |
| 210748060 |
Laser | 1 |
| 20160200593 | PHOTOCATALYTIC DEGRADATION OF CONTAMINANT IN WASTE WATER USING LASER LIGHT SOURCE | 07-14-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20100065510 | DESALINATION METHOD AND DEVICE - A method of water desalination and purification includes steps of flowing salted or contaminated water concentration into a narrow or pointed portion of a corona electrode; applying an electrical potential difference between the water and an opposite electrode; generating a corona discharge in the narrow or pointed portion; evaporating the water; electrically charging water droplets and molecules formed by the evaporating step by means of the corona discharge; moving the charged droplets and molecules toward the oppositely charged electrode; condensing fresh water; and collecting fresh water. A corresponding desalination device includes a corona electrode; at least one attracting electrode; a power supply generating electrical potential difference between the corona electrode and the attracting electrode; and at least one water condensing member. | 03-18-2010 |
| 20100065511 | Method of Regenerating A Capacitive Deionization Cell - A method of operating a capacitive deionization cell using a regeneration cycle to increase pure flow rate and efficiency of the cell. | 03-18-2010 |
| 20100089840 | Removal of Adenine During A Pathogen Reduction Process in Whole Blood or Red Blood Cells by Dilution - The methods of this invention involve preventing the formation of a complex between adenine and riboflavin by reducing the amount of adenine in a solution containing blood or blood components to be pathogen reduced. | 04-15-2010 |
| 20100102009 | METHODS AND SYSTEMS FOR PURIFYING AQUEOUS LIQUIDS - Methods and systems are provided for the efficient purification of aqueous liquids comprising an ionic solute. The liquids are purified by a plurality supercapacitor desalination units working in tandem; a first unit operating in “charge” mode, deionizing the feed solution and producing a purified product liquid, while a second supercapacitor desalination unit is operated in “discharge” mode, releasing ions into a circulating stream and producing a concentrate. The output of the first desalination unit is removed as a purified product stream. The output of the second desalination unit is a concentrate, which is directed to a common precipitation unit where a portion of the ionic solute is precipitated and separated from the remaining liquid phase, which may be recirculated to the second desalination unit. The use of two supercapacitor desalination units operating out of phase allows the common precipitation unit to be operated continuously under steady state conditions. | 04-29-2010 |
| 20100219136 | FLUID TREATMENT USING PLASMA TECHNOLOGY - A method for the treatment of fluid including the step of exposing the fluid to a pulsed plasma discharge. The pulsed plasma discharge will be generated using a suitable electrode configuration to generate the plasma discharge in the fluid. Apparatus useful in the method may include a vessel, at least two electrodes for generating a plasma discharge in water, and a flow inlet and a flow outlet to allow water to be passed through the vessel. Also described is an in-line water treatment, where a pulsed plasma discharge is used in a pipe carrying moving water. Plasma based fluid treatment system may have many advantages in comparison to other treatment methods, such as very minimal maintenance, low operating power, and minimal pressure loss through the device. | 09-02-2010 |
| 20100264095 | METHODS AND APPARATUS FOR CONDITIONING AND DEGASSING LIQUIDS AND GASES IN SUSPENSION - A method and apparatus are provided for the controlled application of ultrasonic energy for conditioning of mixtures of gas and liquids by evolving and/or agglomerating gas bubbles existing with or in a liquid or for coalescing droplets of liquid dispersed in another liquid. The invention in preferred embodiments thereof comprises a coalescing apparatus for increasing the droplet size of a mixture formed as a liquid dispersed in another liquid, and a de-gassing apparatus arranged to evolve and/or agglomerate gaseous bubbles in a gas/liquid mixture. In the apparatuses, ultrasonic transducers are used to impart vibrational energy to the mixtures. | 10-21-2010 |
| 20100326925 | LIQUID TREATMENT METHODS AND APPARATUS - A liquid or water treatment apparatus comprising one or both of an electrodialysis cell and a cavitation unit. The cavitation unit generates cavitation in the liquid by flow of the liquid into a constriction where cavitation bubbles are formed and then to an outlet where cavitation bubbles implode, and the constriction includes an aperture formed by walls which are long and narrowly spaced in a plane normal to the flow direction. The electrodialysis cell is arranged with an inlet flow path for directing only part of a quantity of water to be treated through the electrodialysis cell, and an outlet flow path for returning a product of the electrodialysis cell to the remainder of the water. | 12-30-2010 |
| 20100326926 | SYSTEMS AND METHODS FOR GENERATION OF LOW ZETA POTENTIAL MINERAL CRYSTALS TO ENHANCE QUALITY OF LIQUID SOLUTIONS - Methods and systems for enhancing of quality of liquid by treating a source liquid to enhance the concentration of low zeta potential crystals and produce a treated liquid having a higher concentration of low zeta potential crystals than that of the source liquid. The inventive system comprises an aqueous liquid source having a threshold concentration of selected minerals and a low zeta potential crystal generator for treating the aqueous source liquid to produce treated liquid having an enhanced concentration of low zeta potential crystals. | 12-30-2010 |
| 20110198299 | PURIFICATION SHEET ASSEMBLY COMBINING FLOW OBSTACLES AND ELECTRIC FIELD FORMATION - An apparatus and method of a fluid containing microorganisms purification, comprising a stack of sheets each having patterns of ribs protruding from its surfaces and an embedded conductive foil connectable to a voltage source. In-between the stacked sheets the ribs engage to form fluid passageways in which electric field is generated by connecting said foils to a voltage source. The protrusions of some ribs from the sheet surface is smaller than others and they are shaped to locally amplify the electric field, thereby gate zones are formed along said passageways where the intensity of the electric field is effective for destruction of microorganisms in the fluid flow. The gate zones also deflect the fluid flow generating localized turbulence such that the time the fluid is residing along the passageway is extended and the microorganisms destruction action by the amplified electrical field is further enhanced. | 08-18-2011 |
| 20110240565 | APPARATUS AND METHOD FOR TREATING SHIP BALLAST WATER USING ELECTRON BEAMS - Disclosed herein are an apparatus and method for treating ship ballast water, wherein electron beams are irradiated into the ballast water to induce radiolysis of the water, and harmful marine organisms present in the ballast water are killed by radicals produced by the radiolysis. The electron beams are continuously irradiated into the ballast water under operating conditions of an energy of 0.5-5 MeV, an electron beam irradiation dose of 0.1-30 kGy and a flow rate of 1-200 m | 10-06-2011 |
| 20110259833 | PIPE AND A METHOD FOR REDUCING BIOFILMS - The present invention relates to a pipe comprising first and second parts of electrically conducting material. The parts are electrically insulated from each other and are arranged on the inside surface of the pipe, extending substantially in the longitudinal direction of the pipe. | 10-27-2011 |
| 20120211437 | MICROCHLORINE GENERATION FOR ANTI-BIOFOULING - A method and an apparatus for retrofit hydrolization of seawater for production of halogen biocides in situ. A method for effecting an in situ generation of biocide as an aid in anti-biofouling of a device disposed in a volume of salt water includes a) associating a cathode electrode to the device; b) associating an anode electrode to the device with the anode electrode spaced apart from the cathode electrode; and c) hydrolyzing one or more components in the volume of salt water to generate a halogen biocide at the anode electrode with the biocide flowing from the anode electrode away from the cathode electrode as a biocide film, the film responsive to a physical arrangement of the associations of the electrodes with the device. | 08-23-2012 |
| 20120223024 | PHOTO-CATALYSIS PROCESS APPLIED IN ELIMINATING RECALCITRANT COMPOUNDS IN INDUSTRIAL RESIDUAL WATERS - The present invention relates to the application of a heterogeneous photocatalysis process for the treatment of industrial wastewater contaminated with recalcitrant compounds and the operating conditions of a pilot plant for implementing said process. | 09-06-2012 |
| 20130032546 | HOT STERILIZATION OF WATER - A method for the sterilization of a liquid, specifically of water, comprises the steps of: evaporating at least a part of the liquid, and exposing the evaporated liquid to ionizing radiation, specifically to electrons. An apparatus for the sterilization of a liquid, specifically of water, comprises a sterilization chamber for receiving an evaporated part of the liquid and a source of ionizing radiation, specifically of electrons, for exposing the evaporated part of the liquid to radiation. | 02-07-2013 |
| 20130213898 | LIQUID PROCESSING APPARATUS AND METHODS FOR PROCESSING LIQUIDS - A liquid processing apparatus is provided. The apparatus includes a cylindrical tube that includes an inner portion configured to contain a liquid therein and an outer portion substantially circumscribing the inner portion. The outer portion includes a porous filter. A conductive assembly is coupled to the cylindrical tube, wherein the conductive assembly is configured to generate an electric field to apply on the liquid. The liquid is channeled from the inner portion of the cylindrical tube through the conductive assembly such that the liquid is filtered when the liquid is channeled through the porous filter and sterilized when the liquid is channeled through the conductive assembly. | 08-22-2013 |
| 20130213899 | Systems and Methods for the Treatment of Ballast Water - A system has been developed to treat ballast water by selectively dissociating target molecules into component products compositionally distinct from the target molecule, wherein the bonds of the target molecule do not reform because the components are no longer reactive with each other. Dissociation is affected by treating the target molecule with light at a frequency and intensity, alone or in combination with a catalyst in an amount effective to selectively break bonds within the target molecule. Dissociation does not result in re-association into the target molecule by the reverse process, and does not produce component products which have a change in oxidation number or state incorporated oxygen or other additives because the process does not proceed via a typical reduction-oxidation mechanism. | 08-22-2013 |
| 20130306573 | SYSTEM AND METHOD FOR CLEANING HYROCARBON CONTAMINATED WATER - A system or method for removing undesired organic material or particulates, such as crude oil, from water, cavitate the mixture with air; irradiate the jet sprayed cavitated mixture with an electron beam or an electron beam sustained non-thermal plasma discharge to create ozone and free radicals within air-oil-in-water-emulsion; and filter the water from the irradiated mixture. | 11-21-2013 |
| 20140360947 | FLUID TREATMENT SYSTEM - A fluid treatment system having an inlet, an outlet, and a fluid treatment zone therebetween. The zone has an array of rows of radiation source assemblies. Each radiation source assembly has a longitudinal axis disposed at an oblique angle with respect to a direction of fluid flow. Each row has a plurality of radiation source assemblies in spaced relation in a direction transverse to the direction of fluid flow, to define a gap through which fluid may flow between an adjacent pair of assemblies. Preferably, all rows in the array are staggered with respect to one another in a direction orthogonal to the direction of fluid flow, such that the gap between an adjacent pair of radiation source assemblies in an upstream row of assemblies is partially or completely obstructed in the direction of fluid flow by a serially disposed radiation source assembly in at least one downstream row. | 12-11-2014 |
| 20150291456 | ELECTRIC FIELD INDUCED SEPARATION OF COMPONENTS IN AN EMULSION - An apparatus and method for applying electric fields at specific amplitudes, gradients, and frequencies for separating oil and water from emulsions thereof, are described. Significant reduction of water concentration in stable water-in-crude oil emulsions having high (>65%) as well as low (<3%) water-cuts has been demonstrated. The apparatus does not require pre-heating of the emulsions or addition of chemicals thereto, and can be stand-alone or functionally integrated with other processes, such as mechanical or gravitational separation technologies. The apparatus may be adapted to small-volume and narrow-space environments, such as pipes. | 10-15-2015 |
| 20150298999 | WATER TREATMENT SYSTEM - A water purification system is disclosed. An example of the water purification system includes a transportable water machine to generate purified water. The example transportable water machine includes fluid treatment subsystems including at least a pre-treatment subsystem, a Capacitive Deionization (CDI) subsystem, a mix and filter subsystem, and an output subsystem. The example transportable water machine also includes a mechanical subsystem to support the pre-treatment subsystem, CDI subsystem, mix and filter subsystem, and the output subsystem. The example transportable water machine also includes an electrical subsystem to support the pre-treatment subsystem, CDI subsystem, mix and filter subsystem, and the output subsystem. in an example, influent (e.g., tap water) to the water purification system is passed through one or more filter (e.g., a series of filters) to remove large particles, ions, organic molecules, inorganic molecules, and biological material. | 10-22-2015 |
| 20150299000 | FLUID HANDLING SYSTEM - A fluid handling system is disclosed as it may be implemented to purify water. In an example, a single-unit fluid handling system includes a stationary filter, a mobile tank, and an end effector subsystem. The stationary filter has a Capacitive Deionization (CDI) subsystem. The stationary filter also has a mix and filter subsystem, and an output subsystem. The mobile tank has a tank subsystem, and a tank liner subsystem. The system may also include a waste handling component having a waste tank subsystem. In an example, purified fluid is maintained in physical, chemical, and biological isolation from waste fluid on the same device. Although not limited in end-use, the fluid handling system may be configured to further combine the purified water with medical fluid concentrate, store the fluid, and then dispense the product, e.g., via a medical device for use in a medical treatment procedure and/or surgery. | 10-22-2015 |
| 20160152494 | System and Method for Disinfection and Fouling Prevention in the Treatment of Water | 06-02-2016 |
