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| Number | Title | Issue Date |
| 8123958 | Method for treating ship ballast water A method for treating ship ballast water in which aquatic organisms in the ship ballast water are exterminated by adding hydrogen peroxide or a compound producing hydrogen peroxide in an amount such that a hydrogen peroxide concentration comes to be 10 to 500 mg/L t... | 02/28/2012 |
| 8092689 | Styrene reduction agent A method of reducing styrene emissions in aqueous cured-in-place pipe closed molding processes and other aqueous environments using a styrene reduction agent. The reduction agent generally comprises a calibrated mixture of salts including sodium chloride plus three ... | 01/10/2012 |
| 7931816 | Method, apparatus and systems for treating contaminants in a waste fluid The invention relates to a method, apparatus and system for the treatment of organic and inorganic waste in a waste fluid. The method involves a co-current plug flow of fluid in a reactor in which ozone mass transfer conforms to the effective life of the ozone used ... | 04/26/2011 |
| 7794607 | Composition and method for enhanced sanitation and oxidation of aqueous systems Compositions and methods for their use are presented that substantially increase the rate of inactivation of microbiological organisms, especially those resistant to inactivation from free halogen based sanitizers, and oxidation of oxidation resistant organic based ... | 09/14/2010 |
| 7695631 | Composition and method for reducing chemical oxygen demand in water A method and composition for reducing chemical oxygen demand is presented. The composition includes a persulfate donor and a transition metal catalyst in contact with the persulfate donor. When the composition is contacted by water, the transition metal catalyst rea... | 04/13/2010 |
| 7682514 | Supercritical water oxidation apparatus and process A method for oxidizing an organic material includes the steps of (a) forming a preoxidation mixture comprising the organic material and water, and (b) causing the preoxidation mixture to react with a liquid oxidizer in a continuous flow reactor supercritical conditi... | 03/23/2010 |
| 7666315 | Methods, devices and reagents for wastewater treatment The invention relates to a method, devices and reagents which are used for Fenton reaction-based wastewater treatment. According to the invention, the oxidation reaction of the organic material with the oxygenated water is performed in the main oxidation reactor ( | 02/23/2010 |
| 7662294 | Method for reducing organic contamination Certain exemplary embodiments provide methods for reducing a concentration of a contaminant associated with a medium, which can be any substance or material, such as soil, water, air, and/or fluid. In one exemplary method, the medium is treated with a ferric chelate... | 02/16/2010 |
| 7572384 | Composition and method for reducing chemical oxygen demand in water A method and composition for reducing chemical oxygen demand is presented. The composition includes a persulfate donor and a transition metal catalyst in contact with the persulfate donor. When the composition is contacted by water, the transition metal catalyst rea... | 08/11/2009 |
| 7476325 | Treatment of recreational water An oxidizing agent comprising a pre-measured amount of stabilized potassium hydrogen peroxymonosulfate and a buffer in a sealed water-soluble pouch, said pouch comprising a hydrolyzed copolymer of vinyl acetate and at least one of acrylic acid, methacrylic acid, mal... | 01/13/2009 |
| 7431849 | Encapsulated reactant and process An encapsulated reactant(s) having at least one encapsulant and at least one reactant. An outermost encapsulant is substantially nonreacting, impermeable and nondissolving with water. The reactant(s) contribute to at least one reaction with contaminants in environme... | 10/07/2008 |
| 7399414 | Wet oxidation with the aid of a porous catalytic contactor A process for oxidation of oxidizable materials which are dissolved or suspended in a liquid phase. A contactor in the form of a porous membrane is used. The contactor is designed such that an oxidizing phase flows along one surface thereof while the phase to be oxi... | 07/15/2008 |
| 7384562 | Treatment of brown grease The invention is a process for treatment of brown grease, where the brown grease comprises water, food solids and free-oil. This process starts with the collection of the brown grease into a container. The brown grease's pH is adjusted with a chemical treatment to p... | 06/10/2008 |
| 7381334 | Method for inhibiting microbial growth in liquid nutrients A method for making a web having a metal-ion sequestering agent and treating a liquid using the web. The method of making the web includes electrostatically providing at least one metal-ion sequestering agent and/or antimicrobial agent. The web can be used to tread ... | 06/03/2008 |
| 7381337 | Gel-based remedial additive for remediation of environmental media and method of use The invention is a formulation for remedial additives to be introduced into environmental medium, where the formulation is designed to reduce unwanted movement through the environmental medium. The formulation includes an inorganic thickening agent to adjust viscosi... | 06/03/2008 |
| 7335310 | Method of treating wastewater containing hardly decomposable harmful substances A method of treating hardly decomposable harmful substance comprising (A) a step for adding coagulant into wastewater containing a hardly decomposable harmful substance, (B) a step for performing solid-liquid separation which separates a solid containing the hardly ... | 02/26/2008 |
| 7335246 | Contaminant adsorption and oxidation via the fenton reaction Contaminated fluids are treated by adsorbing contaminant onto a sorbent to concentrate the contaminant and then oxidizing the contaminant via the Fenton and related reactions. Iron is attached to the sorbent or can be added in solution with an oxidant. Both systems,... | 02/26/2008 |
| 7332095 | Wet oxidation An oxidation process is described which involves subjecting a feedstock which contains oxidizable material to temperature, pressure and contact with an oxidant. Excess water and volatile oxidation products, such as carbon dioxide, formic acid and acetic acid, are re... | 02/19/2008 |
| 7329359 | Application of catalysts for destruction of organic compounds in liquid media A method of destroying an organic compound in liquid media comprising: contacting said liquid media with a catalyst of formula: nN/Ce1−xZrcBbB′b′B″b″O2−δ wherein n is a percentage from 0 ... | 02/12/2008 |
| 7321073 | Process for treating low solids content hazardous materials A high temperature and high pressure process utilizes dehaloganation, oxidation, or similar reactions to chemically alter hazardous organic chemicals to render them non-hazardous. The method is particularly adaptable to the treatment of sediments in bodies of water ... | 01/22/2008 |
| 7320756 | Method and apparatus for treatment of feedwaters by membrane separation under acidic conditions A process for treatment of water via membrane separation equipment. A feedwater is maintained or adjusted to a pH of 4.3 or lower, and fed to a membrane separation system. In this manner, species such as TOC become more ionized, and (a) their rejection by the membra... | 01/22/2008 |
| 7307056 | Disinfecting peroxosilicated compound with scale preventive effect, preparation method and use thereof The invention concerns a peroxosilicated, optionally phosphatized, disinfecting compound with scale preventive effect obtained by reacting an alkaline or alkaline-earth metasilicate with an active oxygen-releasing compound, for example potassium monopersulphate and/... | 12/11/2007 |
| 7300585 | Method of treatment of effluent stream A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ... | 11/27/2007 |
| 7291276 | Controlled production and release of oxygen activated biocide into holding tanks for RV's, boats and the like Waste in a black or gray water holding tank is treated by an oxygen activated biocide by the addition of tetra acetyl ethylene diamine (TAED) and a peroxygen compound. Hydrogen peroxide and/or peracetic acid are released over a period of time and thus maintained in ... | 11/06/2007 |
| 7285223 | Enhanced air and water purification using continuous breakpoint halogenation with free oxygen radicals Continuous breakpoint halogenation with hydroxyl free radical species is used to increase the rate of sanitization a water system and maintain a high rate of oxidation in the bulk water of the pool, spas, and other water systems despite the presence of accumulated d... | 10/23/2007 |
| 7285217 | Removing odoriferous sulfides from wastewater A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. Th... | 10/23/2007 |
| 7267778 | Device and process for treating a liquid medium A device for treating liquid medium has an ultrasound emitter located relative to a compartment of a container holding a liquid medium and a microbubble emitter located relative to the compartment. The ultrasound emitter emits high-frequency ultrasound between about... | 09/11/2007 |
| 7264747 | Coated microbubbles for treating an aquifer or soil formations A microporous diffuser includes a first elongated member including at least one sidewall having a plurality of microscopic openings. The sidewall defines an interior hollow portion of the member. The diffuser has a second elongated member having a second sidewall ha... | 09/04/2007 |
| 7264738 | Method for killing organisms in the course of conveying ballast water in ships and apparatus thereof The present invention relates to gaseous discharge and applied biotechnology. In particularly, the present invention relates to a method for killing organisms in the course of conveying ballast water in ship, comprising applying a voltage with frequency of 400-40000... | 09/04/2007 |
| 7264734 | Method for treating dredged material The present invention provides a method for treating dredged material in which liquid is first added to the dredged material, and dewatering the dredged material to obtain a filtrate and a solid portion. Contaminants are removed from the dredged material by at least... | 09/04/2007 |
| 7255514 | Method and system for removing contaminants from soil A method and system for removing contaminants from contaminated soil at a site utilizes particle size segregation and particle density segregation to yield a plurality of fractions, whereby each of the fractions are tested and identified for the presence of unaccept... | 08/14/2007 |
| 7247244 | Water treatment processes and devices utilizing hydrodynamic cavitation Processes and devices associated with reducing the amount of organic substances in a fluid are described. In one example method, oxidizing agents may be introduced into a local constriction of flow in a flow-through chamber as the fluid is flowed therethrough. Cavit... | 07/24/2007 |
| 7238290 | Catalytic oxidation of peroxy salts Transition metal ions have the ability to increase the oxidation performance of the inorganic peroxy salts at room temperature by possibly lowering their activation energy or by producing more reactive free radicals. When two transition metal salts are used together... | 07/03/2007 |
| 7204931 | Stable composition with enhanced biocidal and virucidal effect A storable, stable composition that provides the effective antimicrobial benefits of halogenated agents is presented. The invention includes a water-soluble biocidal composition. The composition includes: about 0.01 to about 10 wt. % of a water-soluble inorganic hal... | 04/17/2007 |
| 7205429 | Method for disposal of waste from acrylic acid process and acrylic ester process This invention is providing a method for efficient treatment of the waste material from a process for production of acrylic acid and an acrylic ester. This is a method for the disposal of waste material, which at least one waste material selected from the group cons... | 04/17/2007 |
| 7186345 | Systems for water purification through supercritical oxidation Supercritical water (SCW) systems and methods using the properties of supercritical water to allow a raw water stream including water and a contaminant to be purified. A supercritical water oxidation (SCWO), water purifier may generally include water and oxidizer (s... | 03/06/2007 |
| 7179389 | Method of using a composition for treatment in a waste treatment or sewage system The use of a composition effective in treatments for a waste treatment or sewage system is provided. The process of preparing such composition includes contacting hydrogen peroxide, glycolic acid, and water. The process can additionally include contacting with one o... | 02/20/2007 |
| 7175770 | Methods and systems for groundwater remediation The present invention provides systems and methods for the remediation of contaminated water, soils and/or sediments. In some embodiments, the system includes one or more conduits for injection of hydrogen peroxide and ozone based reagents. ... | 02/13/2007 |
| 7172704 | Method for treating waste water A method for treating waste water fluid, wherein the method comprises the steps of macerating waste water fluid in a first tank forming a sheared fluid, filtering the sheared fluid to remove solids, forming unfiltered waste water and product water, flowing product w... | 02/06/2007 |
| 7166227 | Method of treating digested sludge A method of treating, in wastewater purification, sludge containing organic matter, divalent iron and phosphorus, in which the sludge that is treated is made to contain dissolved iron and phosphorus at a molar ratio Fe:P of above 1... | 01/23/2007 |
