| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210668000 | By chemically modifying or inhibiting dispersed constituent | 61 |
| 20080251461 | Water treatment process - A process for removing target ion(s) from a for-treatment water containing the target ion(s) is provided. Also provided is a method for improving the efficiency of an electrochemical cell for target ion(s) destruction. | 10-16-2008 |
| 20090014390 | PROCESS FOR THE TREATMENT OF CONTAMINATED WATER BY MEANS OF A BIFUNCTIONAL SYSTEM CONSISTING OF IRON AND ZEOLITES - A process is described for the treatment of water contaminated by metals with a high oxidation degree, aliphatic compounds, aromatic compounds, halogen-aromatic compounds, chlorinated alkane and alkene compounds or mixtures thereof, which consists in circulating the contaminated water through a reactive system consisting of metallic iron and a zeolite having a silica/alumina ratio>50, placed in succession, wherein the first element through which the water passes is iron. | 01-15-2009 |
| 20090020477 | MEDIUM FOR REMOVAL OF ARSENIC FROM WATER - Method for removing Arsenic from water. The method includes providing resin based medium which contains Arsenate adsorbent agent and Arsenite oxidizing agent. The method also includes providing for water containing Arsenic to come in contact with the resin based medium. Corresponding composition for the Arsenic removal medium is also provided. Method for preparing the corresponding Arsenic removal medium is also provided. | 01-22-2009 |
| 20090065434 | Removal of residual sulfur compounds from a caustic stream - A process for the removal of residual sulfur compounds from a liquid caustic stream is disclosed. One embodiment of my invention adsorbs disulfides from a caustic stream using an activated carbon adsorbent while another combines both oxidation and adsorption in single step to remove residual sulfur compounds from a rich caustic stream using metal phthalocyanine supported on a solid adsorbent. This process is especially useful as a polishing step in a caustic regeneration process flow scheme. | 03-12-2009 |
| 20090084729 | Method for purifying liquids by using ionized aeration - Method for purifying liquids or fluids to eliminate harmful admixtures and microorganisms by using aerating and incidence of electric charges, wherein purified liquid undergoes gas-dynamic dispersion with the help of blast air passed through channels sloping below an angle of 30-50° according to a level of purified liquid, at a flow velocity of blast air of 10 to 100 m/s, at channel hydraulic resistance varying between 1.5 to 10 kPa and at specific consumption of dispersed water from 0.1 to 30 kg on 1 m | 04-02-2009 |
| 20090101584 | Reverse flow reactor with integrated separation and process for the employing this reactor - The present invention pertains to a reverse-flow reactor comprising at least one catalyst bed which is preceded and followed by at least one bed containing selectively adsorbing material, and its application for in a process for the removal of contaminants from a process stream. | 04-23-2009 |
| 20090127201 | Process and Apparatus for Removing Hydrogen Peroxide - A process for removing hydrogen peroxide in water which comprises bringing water for treatment containing hydrogen peroxide into contact with a catalyst for decomposing hydrogen peroxide obtained by depositing nano-colloid particles of a metal of a platinum group which have an average diameter of 1 to 50 nm to be supported on a support; and an apparatus for removing hydrogen peroxide which comprises an apparatus for decomposing hydrogen peroxide packed with a catalyst obtained by depositing nano-colloid particles of a metal of a platinum group which have an average diameter of 1 to 50 nm to be supported on a support, a means for supplying water which supplies water for treatment containing hydrogen peroxide to the apparatus and a means for discharging water which discharges the water from the apparatus after being brought into contact with the catalyst. Hydrogen peroxide in water for treatment can be removed rapidly and surely. The process and the apparatus are suitable for removing hydrogen peroxide in ultrapure water in an apparatus for producing ultrapure water used in industries handling electronic materials such as semiconductors and liquid crystals. | 05-21-2009 |
| 20090211983 | OPERATION OF EVAPORATIVE COOLING TOWERS WITH MINIMAL OR NO BLOWDOWN - A method and composition are provided for the operation of an evaporative cooling tower with minimal, or no, blowdown. In some embodiments, the method involves using sodium cation-exchanged softened water as makeup water for the cooling tower, providing a bypass filter for suspended solids removal from the cooling water, treating the cooling water with a composition for control of corrosion and deposition, and using an effective biocide for control of biological growth within the cooling tower system. In some embodiments, a composition is provided that comprises AMPS acrylic terpolymer, sodium silicate, phosphate ions, and polyphosphate ions. When dosed at the recommended levels, the composition controls corrosion of cooling system materials to generally acceptable levels in spite of the extremely corrosive environment resulting from the cycling of sodium cation-exchanged softened water in the cooling tower. | 08-27-2009 |
| 20090218288 | METHOD AND COMPOSITION FOR REMOVING UREMIC TOXINS IN DIALYSIS PROCESSES - Methods and devices for providing dialysis treatment are provided. The device includes a resin bed including zirconium phosphate, zirconium oxide, and urease. | 09-03-2009 |
| 20090277841 | METHOD FOR MINIMIZING CORROSION, SCALE, AND WATER CONSUMPTION IN COOLING TOWER SYSTEMS - This invention is an improved process for operation of evaporative recirculating cooling systems. In addition to reducing the scaling and corrosive tendencies of the water, the method eliminates or reduces discharge from the system without creating any localized corrosive or scaling conditions as a result of the treatment process. The described measurement and control system generally comprises an array of measurements, a means of implementing control logic, and an array of control actions including activating an ion exchange device to treat makeup water. The measurements can include of physical measurements of flow rates, chemical measurements of water composition, and performance-related metrics such as water corrosiveness or scaling tendency. Preferably, the measurements include one or more of pH, conductivity, hardness, alkalinity, corrosiveness, scaling tendency, treatment additive dosage level, and treatment additive residual of the makeup, treated makeup, and recirculating water. | 11-12-2009 |
| 20090289011 | MOBILE WATER PURIFICATION SYSTEM AND METHOD - An improved water purification system and method for converting contaminated water into potable water in an inexpensive and reliable manner that includes several active and passive purification components contained within a housing. The passive components may include, for example, a macro filtration unit for filtering debris; a pre-depth mixed bed media filtration unit to mechanically filter out various contaminants; and a post-depth mixed bed media filtration unit to remove particles or organic growth that may have resulted from active filtration. The active components may include, for example, a specialized media filtration unit to destroy and remove organic and inorganic contaminants; an ozonation unit to break down and destroy oxidizable matter; an active carbon filtration unit to neutralize ozone, adsorb contaminants, and improve taste; and a UV sterilization unit to destroy any remaining microorganisms and neutralize ozone. | 11-26-2009 |
| 20090321361 | ADSORBENTS FOR TREATING CONTAMINATED LIQUIDS - An adsorbent particulate product for treating contaminated fluid and capable of electrochemical regeneration. The product includes unexpanded intercalated graphite in particulate form, in the form of flakes or in powder form. | 12-31-2009 |
| 20100078389 | Method of Treating Sludge Material Using Electrokinetics - Sludge is treated in a treatment chamber by providing a pair of electrodes in the treatment chamber and applying an electrical current between the electrodes such that one of the electrodes functions as an anode and one of the electrodes functions as a cathode in proximity to the outlet. A flow of water is induced from the sludge towards the outlet by the electrical current. An ion exchange textile comprising exchangeable functional groups grafted thereon is located in proximity to at least one of the electrodes such that the ionic forms of the metals are exchanged with the functional groups on the ion exchange textile. Accordingly the sludge is dewatered and metals in the sludge are captured commonly in the treatment chamber while the electrical current simultaneously inactivates pathogens in the treatment chamber. | 04-01-2010 |
| 20100084346 | PROCESS FOR THE PURIFICATION OF WATER - The present invention relates to a process for the purification of water by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids and the use of the surface-reacted natural calcium carbonate for this process. | 04-08-2010 |
| 20100102001 | VALVING AND STORAGE USING MOLECULAR SIEVE MEMBRANES - The invention provides chemically activated valves based on crystalline molecular sieve membranes. Adsorption of a swelling agent within the pores of the molecular sieve crystals limits transport through the membrane. Desorption of the swelling agent can re-establish transport through the membrane. This valving mechanism can be used in methods for storing and dispensing various substances. | 04-29-2010 |
| 20100102002 | Portable Drinking Water Purification Device - A portable water disinfecting and purification apparatus comprising a first chamber into which water to be purified may be drawn by suction or negative pressure, a second chamber into which the water from the first chamber can be forced by a pumping action or positive pressure, whereby the water is initially passed across a pre-filter secured over the inlet to the first chamber and having a very small pore size and an inner cavity in which a disinfecting agent is place to filters most contaminants before the water is drawn into said filtering device, and once in the first holding chamber the water is isolated and may be further treated with a disinfectant agent, and then is passed though at least additional filtering substance including an activated carbon or nano-filter. | 04-29-2010 |
| 20100108609 | SYSTEM AND METHOD OF SLURRY TREATMENT - Wastewater streams from semiconductor processing operations are treated to reduce the concentration therein of one or more metal species to a satisfactory level. The disclosed systems and technique utilize complexing ion exchange media to treat the wastewater streams having a significant concentration of oxidizing species and high solids concentration. | 05-06-2010 |
| 20100133196 | Combined gravity separation-filtration for conducting treatment processes in solid-liquid systems - This is a method and apparatus for combined gravity separation-filtration for conducting physical, physical-chemical, chemical, and biological processes in solid-liquid systems; including but not limited to separation of dispersed solids from liquids, separation of alkalinity from the liquid stream, chemical acid-base interactions, chemical oxidation-reduction, chemical dissolution-precipitation, physical chemical adsorption, ion exchange, mass transfer in any combinations of multiple liquid-solid-gas phases, biological oxidation-reductions, biological growth, and combinations of these processes; gravity separation steps can be conducted in rectangular horizontal unidirectional flow clarifiers, rectangular or circular radial flow clarifiers, rectangular or circular vertical flow clarifiers, lamella clarifiers, suspended sludge blanket clarifiers, fluidized bed separators, and combinations thereof, wherein the filtration step is disposed in the upper portion of the combined process or side-by-side with clarification step; filtration steps are conducted in single or multiple attachment media filters, including particulate filter media either heavier than liquid or floating; liquid filtered through the attachment media is collected by holed pipes, screens, or membranes. Reagents can be introduced before the gravity separation and/or before filtration steps. This method and apparatus can be used for municipal and industrial water purification and wastewater treatment for removal of a broad range of admixtures including BOD/COD, suspended solids, nitrogen and phosphorus, organics imparting color, salts of hardness, heavy metals, and other constituents of admixture. | 06-03-2010 |
| 20100170853 | SYSTEM AND METHOD FOR WASTEWATER TREATMENT - The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include a vacuum filter band system configured to receive a saturated ion exchange resin tank and to apply a water rinse to the resin to generate a resin slurry. The vacuum filter band system may further include a vacuum filter band configured to receive the resin slurry. The vacuum filter band system may also be configured to generate a mixed metal solution. The system may further include a metal specific purification system including a plurality of purification units configured to receive a continuous flow of the mixed metal solution, each of the purification units configured to target a particular metal from the mixed metal solution. Numerous other embodiments are also within the scope of the present disclosure. | 07-08-2010 |
| 20100187179 | Method and Installation for Treating an Aqueous Phase Containing an Adsorbent Used Material - The invention relates to a method and installation for treatment of an aqueous phase containing a used adsorbent powdery material, such as activated carbon powder, from a water purification or potabilization installation, wherein said method includes: a first step of desorbing the main part of the organic matter adsorbed on the used adsorbent powdery material consisting of placing said aqueous phase containing the used adsorbent powdery material in contact with a desorbent compound resulting in a first aqueous phase containing at least partially regenerated adsorbent powdery material and desorbed organic matter; a first step of separating by sedimentation the main part of the desorbed organic matter from the rest of the first aqueous phase containing the at least partially regenerated adsorbent powdery material leading to the production of a second aqueous phase containing the at least partially regenerated adsorbent powdery material; a first step of neutralizing said second aqueous phase containing the at least partially regenerated adsorbent powdery material; a second step of separating the at least partially regenerated adsorbent powdery material from said second aqueous phase leading to the production of a third aqueous phase containing the at least partially regenerated adsorbent powdery material. | 07-29-2010 |
| 20100193443 | TOTAL ORGANIC CARBON (TOC) REDUCTION IN BRINE VIA CHLORINOLYSIS - A plurality of stages is employed to reduce the total organic carbon (TOC) content of a brine by-product stream to produce a recyclable brine stream having a TOC content of less than about 10 ppm. In a first stage treatment, a brine by-product stream may be subjected to chlorinolysis at a temperature of less than about 125 0C to obtain a chlorinolysis product having a TOC content of less than about 100 ppm, which may be treated in a second stage with activated carbon to obtain a TOC content of less than about 10 ppm. The chlorinolysis may be a reaction with sodium hypochlorite, which may be produced in situ by treatment of the brine by-product stream with chlorine gas and sodium hydroxide. The brine by-product stream may contain a high amount of difficult to remove glycerin, such as a brine by-product stream from the production of epichlorohydrin from glycerin. | 08-05-2010 |
| 20100243571 | METHOD FOR ADSORPTION OF PHOSPHATE CONTAMINANTS FROM WATER SOLUTIONS AND ITS RECOVERY - Aqueous fluid polluted with phosphate contaminants is mixed with or passed through an adsorbent material selected from: (i) particles of oxides or hydroxides of transition metals, aluminum oxides or hydroxides, TiO2, or mixtures thereof, or (ii) particles of activated carbon, activated alumina, aluminum oxide, activated TiO2, TiO2, mineral clay, zeolite, or an ion exchanger loaded with nanoparticles of oxides or hydroxides of transition metals, aluminum oxides or hydroxides or TiO2, or mixtures thereof, to yield aqueous fluid purified from phosphate. The adsorbent material is further regenerated by increasing the pH of the adsorbent sludge, concentrated phosphate solution or a phosphate crystal slurry is recovered as well. | 09-30-2010 |
| 20100270240 | CONTINUOUS FLOW WATER TREATMENT DEVICES AND METHODS - Continuous flow water treatment systems, devices and methods that reduce the costs associated with using oxidizing agents in water treatment by maximizing mixing energy with pressure of the solution in a continuous flow system. The systems comprise an inflow conduit that provides water to be treated to a mixing chamber in a housing, a first chemical injector mounted into either the inflow conduit or the housing that provides an oxidizing agent into the water flow, a driven impeller mounted within the mixing chamber that maintains the flow of fluid through the apparatus and provides agitation to the fluid within the mixing chamber, and an outflow conduit for expelling the treated water from the mixing chamber. The outflow conduit may be pressurized to increase the mixing energy in the mixing chamber. | 10-28-2010 |
| 20100276372 | MERCURY ADSORBENT COMPOSITION, PROCESS OF MAKING SAME AND METHOD OF SEPARATING MERCURY FROM FLUIDS - A heavy metal adsorbent composition configured for use as a mercury adsorbent composition, agent or product is shown. The mercury adsorbent composition comprises a natural diatomite in the form of siliceous frustules of diatoms having a surface punctuated by a series of openings defining frustule structures having sizes in the range of about 0.75 μm to about 1,000 μm (rounded to about 1 μm to about 1,000 μm). The diatoms have the surfaces thereof treated with an activating material capable of removing mercury by chemical bonding forming surface treated diatoms which when brought into contact with a mercury containing fluid react with mercury to cause mercury to separate from the fluid by chemical bonding to the surface treated diatoms. | 11-04-2010 |
| 20100300975 | System and Process for Treatment of a Contaminated Fluid - A new device, method, and system are disclosed that provide for removal of undesired materials from a contaminated fluid. Materials present in the fluids are kept in motion in one or more filter cassettes that include disc aerators that improve contact times with the sorbents and that rotate the filter media to pump contaminated water through the filter media for treatment of the contaminated fluids. The device and system provide containment of sorbent fines that keeps the filter media free from clogging. | 12-02-2010 |
| 20100307976 | Drinking water purification device - A fast acting water purification system containing a source of silver ions which is suitable for use in personal or household water containers, where the non-potable water may contain halides or other materials that limit the solubility of silver in the non-potable water, with the purification agent including a source of silver ions and a compound containing a hydantoin ring increase the presence of silver ions in the non-potable water to a level sufficient to quickly kill harmful microorganisms in the non-potable water without the need to add additional biocides to the non-potable water or pretreat the non-potable water. | 12-09-2010 |
| 20100314322 | PURIFICATION PROCEDURE FOR THE PREPARATION OF THE RADIOACTIVE TRACER 3'-DEOXY-3'- [18F] LUOROTHYMIDINE ([18F] FLT) - A procedure for the preparation of the radioactive tracer 3′-deoxy-3′-[ | 12-16-2010 |
| 20110006009 | ANTI-MICROBIAL MATRIX AND FILTRATION SYSTEM - Provided are an anti-microbial matrix and filtration systems containing the same. The matrix comprises a surface-modified inorganic component and a polymeric binder comprising particles having an irregular, convoluted surface. The surface-modified inorganic component comprises a reaction product of an anti-microbial component and an inorganic component. The anti-microbial component comprises a quaternary ammonium salt containing an epoxide group. A covalent bond is, for example, between the quaternary ammonium cation and a hydroxyl group of the inorganic component. The quaternary ammonium salt can be poly(methyldiallylamine epichlorohydrin). Further, the quaternary ammonium salt can have the formula according to I: (Formula I), wherein n is in the range of 5 to 24. The inorganic component can be diatomaceous earth. The polymeric binder can comprise ultra high molecular weight polyethylene (UHMW PE). Methods of making and using the same are also provided. | 01-13-2011 |
| 20110036776 | PROCESSING METHOD OF LIQUID - A processing method of liquid includes: decomposing a resin in liquid by allowing ozone gas to contact the liquid containing a water-soluble carbonyl compound and the resin; and removing organic acid generated by decomposing the resin in the decomposing step from the liquid by performing on the liquid after being subjected to the decomposing step an ion exchange process using an ion exchange resin. The liquid to be subjected to the ion exchange process contains water. | 02-17-2011 |
| 20110108486 | IODINE EXTRACTION PROCESSES - Processes for extracting iodine from an aqueous solution, such as brine, are disclosed. Activated coconut carbon particles are mixed with the solution to adsorb iodide through pores in the activated carbon particles. The activated carbon particles are then treated with sulfur dioxide gas and water to form hydrogen iodide. The hydrogen iodide is then reacted with chloride to obtain elemental iodine (I | 05-12-2011 |
| 20110127221 | Method To Remove Toxic Heavy Metals - A method to remove toxic heavy metals soluble in wastewaters of household or industrial origin that comprises the phases of: | 06-02-2011 |
| 20110132843 | Composite as Adsorbent and Catalyst, Manufacturing Method Thereof, and Method of Treating Wastewater Using Same - A composition as adsorbent and catalyst is manufactured by adding activated carbon into a aqueous solution comprising a plurality of metal salts, adjusting the solution to a predetermined pH value according to the types of the plurality of metal salts, drying the solution while slowly stirring at the same time, and calcining a product from the dried aqueous solution so as to obtain the composite as adsorbent and catalyst. The said composite can be used in a wastewater treatment method. The wastewater treating method comprises the steps of adding the said composite to wastewater comprising a contaminant, such that the contaminant is adsorbed onto the composite; and adding an oxidant to the wastewater. The oxidant is catalyzed by the composite to generate free radicals, which oxidizes the contaminant adsorbed onto the composite to thereby remove the contaminant from the wastewater. | 06-09-2011 |
| 20110290733 | METHOD AND APPARATUS FOR REMOVING SELENIUM FROM WATER - Methods of and apparatuses for removing selenium from water. Sulfate and organics are first removed to discourage such materials from overwhelming subsequent processing of water to remove selenium. | 12-01-2011 |
| 20120000856 | Method and Composition for Environmental Clean Up - A method and absorbent material for cleaning up contaminants, such as a petroleum-based product, with little to no water absorption. The absorbent material may include sheets, disks, or spheres of polymer-based plastic material of one to two inches thick that is manufactured and pre-conditioned to enhance absorption characteristics. The absorbent material may include smaller sieve sizes ranging from 16 to 100 that facilitate absorption and collection of a petroleum-based contaminant. Alternatively or additionally, the absorbent material may include larger sieve sizes ranging from 4 to 10 that facilitate transfer of the petroleum-based contaminant to the surface of the absorbent material. The absorbent material may be deployed at sea for a matter of minutes, and after absorbing a portion of the petroleum-based contaminant, then recovered by a recovery vessel, such as via netting, scooping, and/or vacuuming means. After which, the petroleum-based contaminant may be extracted from the absorbent material for re-use. | 01-05-2012 |
| 20120055881 | Water purification system - A system and a method for treating water, the system comprising a first conduit having an inlet and an outlet with an ozone generator situated thereon, the ozone generator being operative to selectively treat water flowing through the conduit with the ozone, a sensor to measure the oxidation reduction potential of water, the sensor being operatively connected to the ozone generator, a holding tank situated at the outlet of the first conduit, the holding tank having a gas outlet conduit and a gas release valve, a second conduit extending from the holding tank, and an activated carbon filter on the second conduit. | 03-08-2012 |
| 20120061322 | Methods and Apparatuses for Treating a Dispersion Bath - The current method and apparatus relate to treating a dispersion bath using an ion exchange resin and an optional pH adjustor and wherein the ion exchange resin and the optional pH adjustor maintain a pH of within +/−2 of the initial pH of the dispersion bath. | 03-15-2012 |
| 20120074067 | METHOD OF HERDING AND COLLECTION OF OIL SPILLED AT THE AQUATIC SURFACE - Disclosed are methods of removing oil from an aqueous surface, comprising: surrounding an oil spot on the aqueous surface with an oil-absorbing material; and introducing a solution comprising a surfactant to the oil spot. Also disclosed are the above methods where the oil is not mechanically directed towards the oil-absorbing material, or where the oil-absorbing material is not mechanically directed towards the oil. Also disclosed are the above methods further comprising introducing a solution comprising a protein/surfactant complex to the oil spot, where the protein/surfactant complex comprises a protein component obtained from the fermentation of yeast, comprising a mixture of multiple intracellular proteins, at least a portion of the mixture including yeast polypeptides obtained from fermenting yeast and yeast stress proteins resulting from subjecting a mixture obtained from the yeast fermentation to stress. | 03-29-2012 |
| 20120175310 | CHEMICAL/BIOCHEMICAL WATER PURIFICATION REACTOR AND METHOD OF IMPLEMENTING SAME - A water purification reactor comprises a containment vessel holding a water purification medium and a disinfectant, and a discharge assembly. The containment vessel has a perimetric wall with a discharge opening therethrough, a first end having a bottom wall, and a second opposed end defining an opening. The perimetric wall and the bottom wall define a chamber. The discharge assembly comprises a collection pipe extending along the bottom wall, a siphon pipe fluidly coupled with the collection pipe and extending upwardly along the perimetric wall, and an exit pipe fluidly coupled with the siphon pipe and extending through the discharge opening. The water purification medium comprises at least one layer of granular material contained within the chamber. The disinfectant has anti-microbial properties and is incorporated into a portion of the water purification medium. The water purification medium and disinfectant are adapted for progressive chemical and biochemical remediation water. | 07-12-2012 |
| 20120187047 | RARE EARTH REMOVAL OF HYDRATED AND HYDROXYL SPECIES - This disclosure relates generally to methods and rare earth-containing additives for removing target materials in the form of hydroxides, carbonates, hydrates, or oxyhydroxyls from, a typically aqueous, liquid medium. | 07-26-2012 |
| 20120199535 | TETHERED CATALYSTS FOR THE HYDRATION OF CARBON DIOXIDE - A system is provided that substantially increases the efficiency of CO | 08-09-2012 |
| 20120285891 | IN-SITU SUBSURFACE DECONTAMINATION - A method of decontaminating soil and ground water containing organic contaminants and metal compounds. It comprises the steps of first treating such soils and ground water with an effective amount an aqueous solution containing a peroxide and a water soluble chelating agent for a time sufficient to have the water soluble chelating agent chelate at least one of the metals of the metal compounds present in the soil and ground water. Next, the chelated metals are brought into contact with the peroxide to catalytically convert the peroxide to an oxidizing agent and hydroxyl ion. The hydroxyl ion converts the halogenated organic compound into environmentally safe, non-toxic compounds. Gases that are produced from this reaction, and from the oxidation of organic compounds, are used to diffuse solution into the soil to chelate calcium and magnesium, thereby causing the sodium to be dislodged from the soil and reduce sodicity in the soil. | 11-15-2012 |
| 20130032543 | Decontamination System with Insoluble Additives - Exemplary decontamination systems of the present disclosure may allow for removing contaminants from a fluid. In an embodiment, a decontamination system may include a filtration unit operable to receive an adsorbent and contaminated fluid. The filtration unit may include a filter operable to separate the fluid from the adsorbent and contaminants adsorbed onto the adsorbent. In an embodiment, the decontamination system may further include a recovery unit operable to separate the adsorbent and the contaminants adsorbed onto the adsorbent. | 02-07-2013 |
| 20130186836 | Method For Removing Arsenic From Water Using Polymer Based Matrices With Chelating Groups Comprising Metal Ions - A method for the removal of arsenic in a positive oxidation stage from an aqueous liquid comprising the steps of: i) providing a porous adsorbent which comprises a solid phase carrying a metal ion in a form (I) which is capable of binding the arsenic to give a metal ion form (II) comprising the metal ion and the arsenic; ii) contacting the aqueous liquid with the adsorbent for formation of form (II), iii) separating the aqueous liquid from the adsorbent, iv) optionally regenerating the adsorbent, and reusing it in cycles comprising steps (i)-(iv), The characterizing feature is that A) form (I) is a metal chelate (I), which •comprises a metal ion and a multidentate chelating group, •comprises three or more amino nitrogens which are directly attached to sp | 07-25-2013 |
| 20130220934 | ULTRAVIOLET OXIDATION DEVICE, ULTRAPURE WATER PRODUCTION DEVICE USING SAME, ULTRAVIOLET OXIDATION METHOD, AND ULTRAPURE WATER PRODUCTION METHOD - Disclosed is an ultraviolet oxidation device for decompositing organic materials present in water in low energy consumption and low cost, an ultrapure water production device using the same, an ultraviolet oxidation method, and an ultrapure water production method. An ultraviolet oxidation device including: a flow tank | 08-29-2013 |
| 20130284673 | MITIGATING LEACHING OF ARSENIC AND ANTIMONY FROM ACTIVATED CARBON - Activated carbon having a low contact pH and their use in the purification of water, as well as methods for making such low contact pH activated carbon and filters and methods for purifying water are described herein. The methods for preparing such low contact pH activated carbons provides an effective and less costly means for preparing activated carbons for purification processes. | 10-31-2013 |
| 20140034578 | BIODEGRADABLE FILTER USING COCONUT DERIVED ACTIVATED CARBON AND CITRICIDAL - A filter intended to remove pollutants from water in developing countries can include two stages connected in series. The first stage can be coconut derived activated carbon embodied in a bamboo housing and used to remove heavy metals and pesticides. The second stage can also be coconut derived activated carbon mixed with citricidal, and used to remove bacteria. Contaminated water traverses from the first stage to the second via gravity flow, resulting in water that is free of heavy metals and bacteria. | 02-06-2014 |
| 20140175016 | SYSTEM FOR WATER TREATMENT AND METHOD - Embodiments of a water treatment system, a method of regenerating a water treatment system, a use of a water softener valve and an ozone kit for a water filtration system are provided. The water treatment system includes a water tank containing iron filtration media; an ozone gas source having an outlet; and a water softener valve having a venturi nozzle that is associated with the water tank and in fluid communication with the outlet of the ozone gas source, the water softener valve configured to invoke a regeneration mode during which the water softener valve controls backwashing of the iron filtration media and then permits ozone gas from the ozone gas source to be drawn through the venturi nozzle and into the water tank. | 06-26-2014 |
| 20140175017 | TREATMENT OF WATER TO EXTEND HALF-LIFE OF OZONE - A system for providing an acidic ionized ozonated liquid. The system includes a liquid inlet arranged to accept a liquid into the system; an acid-based cation-exchange resin in fluid communication with the liquid inlet, the resin adapted to exchange cations in the accepted liquid with H+ ions on the resin; an ozone dissolving apparatus in fluid communication with the liquid inlet and the acid-based cation-exchange resin; and a liquid outlet in fluid communication with the liquid inlet, the acid-based cation-exchange resin and the ozone dissolving apparatus. The ozone dissolving apparatus and the acid-based cation-exchange resin cooperating to produce the acidic ionized ozonated liquid for dispensation out of the system via the liquid outlet. | 06-26-2014 |
| 20140209541 | FILTRATION MEDIUM COMPRISING A CARBON OXYCHALCOGENIDE - Described herein is a filtration medium comprising a carbon substrate having a surface of CO | 07-31-2014 |
| 20140263073 | Apparatus and Method for Removal of Radionuclides in Liquids - A vessel for treatment of radioactive liquid. The vessel comprises a shielded housing defining an ion exchange chamber therein. The ion exchange chamber is configured to receive ion exchange media in its interior between an interior top surface and an interior bottom surface. The vessel further comprises an inlet diffuser disposed in the ion exchange chamber proximate the bottom surface and an outlet collection header disposed in the ion exchange chamber proximate the top surface. Also, the vessel comprises a process inlet in fluid communication with the inlet diffuser and a process outlet in fluid communication with the outlet collection header. | 09-18-2014 |
| 20140291250 | NANO-STRUCTURED COMPOSITE MATERIALS BASED ON COMPOSITIONS OF MANGANESE AND CERIUM, USABLE AS OXIDATION CATALYSTS AND/OR MOLECULAR ADSORBERS - The present invention concerns a nano-structured composite material based on compositions of manganese and cerium, composed of aggregated composite nanospheres, ranging in size from 1 to 40 nm, of ultrafine crystalline nanoparticles of one or more compounds of cerium, dispersed in a metastable solid mixture of one or more sub-stoichiometric oxides of manganese, said sub-stoichiometric oxides of manganese comprising MeMnOz manganates, wherein 1≦z≦4, Me being constituted of one or more elements selected amongst alkali metals, alkaline earth metals, transition metals and rare earths, and in particular being constituted of one or more elements selected amongst Ce, V, Ti, Cr, Fe, Cu, Zn, Sn, Ga, Gd, Y, Zr, Al, Si, La, K, Li, Pb, Cs, or mixtures thereof; which can be used in the industry as redox catalyst and/or adsorbing filter of heavy metals, cyanides, sulfur compounds, pigments, dyes, polymers (PEG), phenols, alcohols, aldehydes and ketones, ethers, esters and carboxylic acids which are present both in contaminated water and in gas streams. | 10-02-2014 |
| 20140339171 | EQUIPMENT AND METHOD FOR WATER AND STREAM PURIFICATION USING PRE-TREATMENT AND MULTI-LAYERED MEDIA SYSTEM - The present disclosure relates to equipment and method for water and stream purification using a pre-treatment and multi-layered media system which may effectively remove dissolved phosphorus, COD and organic matter by introducing a pre-treatment device to stably operate filter media and applying a strainer to each filter media to improve water permeating ability of the filter media. | 11-20-2014 |
| 20150014252 | WATER BOTTLE COUPLED WITH FILTRATION DEVICE - Water bottle coupled with a filtration cartridge including a plastic reservoir sufficiently flexible so that it can be gripped and squeezed, a drinking cap removably attached to the reservoir, a replaceable filtering element removably coupled with the drinking spout portion of the cap through which water inside the reservoir passes before being released through the spout. The removable filter includes and entry and an exit layer of felt and a layer of activated charcoal mixed with zeolite to reduce chlorine, trihalomethanes, organochlorines and heavy metals. The reservoir can fits into a magnetized base which can also be embedded in the body of the reservoir, and a cover to cover the cap and spout which dispenses purified water to the consumer. | 01-15-2015 |
| 20150136705 | METHOD FOR TREATING HYDROGEN PEROXIDE WATER - A method for treating drainage containing hydrogen peroxide that has been used for sterilizing and washing an inside of a water treatment system or washing and surface finishing of electronic components includes passing the drainage through the hydrogen peroxide decomposition reactor, injecting effluent water from the hydrogen peroxide decomposition reactor into a side part of the tubular container of the gas-liquid separator, and contacting the drainage with the hydrogen peroxide decomposition catalyst to decompose the hydrogen peroxide in the drainage into oxygen and water, thereby yielding the treated water. | 05-21-2015 |
| 20150144566 | SYSTEM FOR REMOVING MINERALS FROM A BRINE - A system includes an ion exchange softener fluidly coupled to a wastewater treatment system. The first ion exchange softener may receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream including the plurality of minerals and a third brine stream. The system also includes a mineral removal system disposed downstream from the ion exchange softener and that may receive the second brine stream and to generate a sodium chloride (NaCl) brine stream and an acid and caustic production system disposed downstream from and fluidly coupled to the mineral removal system. The acid and caustic production system includes a first electrodialysis (ED) system that may receive the NaCl brine stream from the mineral removal system and to generate hydrochloric acid (HCl) and sodium hydroxide (NaOH) from the NaCl brine stream. The system also includes a second ED system disposed downstream from the ion exchange softener and upstream of the acid and caustic production system. The second ED system is fluidly coupled to the ion exchange softener and to the acid and caustic production system, and the second ED may generate desalinated water from the third brine stream and an ED concentrate stream. The second ED system may direct the ED concentrate stream to the acid and caustic production system. | 05-28-2015 |
| 20150315054 | SYSTEM FOR TREATING COAL GASIFICATION WASTEWATER, AND METHOD FOR TREATING COAL GASIFICATION WASTEWATER - Treating coal gasification wastewater to remove a cyan compound, a fluorine compound, a selenium compound, ammonia nitrogen and a COD component contained in the coal gasification wastewater to achieve satisfactory quality of treated water, to reduce the content of a toxic substance in produced sludge, and disposes waste materials easily. The system is equipped with a high-temperature alkaline chlorination treatment unit for decomposing at least a cyan compound, ammonia nitrogen and a COD component by such a high-temperature alkaline chlorination treatment that an oxidizing agent is added and the reaction is carried out under warmed conditions; a fluorination treatment unit for removing at least a fluorine compound by a coagulation-sedimentation treatment and/or an adsorption treatment; and a selenium treatment unit for removing a selenium compound that the selenium compound is reduced and then the reduced selenium compound is removed and/or an adsorption treatment. | 11-05-2015 |
| 20150336808 | TREATMENT OF WASTEWATER - The present invention provides systems, methods and devices for removing contaminants from an aqueous stream. In embodiments, these systems and methods may be applied to particular applications, for example removal of contaminants in aqueous streams associated with the petroleum industry. | 11-26-2015 |
| 20160023918 | SYSTEMS AND METHODS OF ELIMINATING FILTER AIR LOCKS - Systems and methods of eliminate filter air locks by maintaining a constant water table at the water head layer of the filter. The constant water table eliminates air locks in the filter as the filter drains. Water flows from the water head layer through a filtration medium in a filter cartridge, and the filtered water is output from a water outlet at the top of the cartridge. For a water table retention filter, where the water (or other liquid) being filtered, is re-directed to the top of the filter to the water head layer to avoid drawing air into the filter. Unfiltered water drains down the center of the filter to the water head layer and then flows up through the filter and is directed out near or at the top of the filter. | 01-28-2016 |
| 20160090313 | FILTER CARTRIDGE AND A METHOD FOR FORMING A FILTER MEDIUM - A method for forming a filter medium includes mixing activated carbon and nitrogen enriched plastic binder. The activated carbon and nitrogen enriched plastic binder are heated in order to bind the activated carbon to the nitrogen enriched plastic binder and form a filter medium block. A related filter cartridge is also provided. | 03-31-2016 |
| 20160185621 | Process and Composition for Converting Liquid Hydrocarbons and Fatty Substances to Solid Form, Devices for Implementing this Process and Manufacturing this Composition, and the Use Thereof for Environmental Remediation - Process and device for converting hydrocarbons or fatty substances that are in substantially liquid form to solid form, especially for the environmental remediation of surfaces or sites polluted by these hydrocarbons or fatty substances, characterized in that the material to be converted to solid form is brought into contact with a composition heated to the liquid state, comprising, at least in the majority proportion, tallow, and optionally a fluidizing agent, thus obtaining a solid complex material, that is easy to collect, and that can be reprocessed in order to recover the material. | 06-30-2016 |
| 20190144312 | Drinking water purification device | 05-16-2019 |
