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| Number | Title | Issue Date |
| 8163972 | Zero-valent metallic treatment system and its application for removal and remediation of polychlorinated biphenyls (PCBs) PCBs are removed from contaminated media using a treatment system including zero-valent metal particles and an organic hydrogen donating solvent. The treatment system may include a weak acid in order to eliminate the need for a coating of catalytic noble metal on th... | 04/24/2012 |
| 7488863 | Process for destruction of halogenated organic compounds in solids The invention provides processes for decontamination of organic halides in asphalt-containing wastes, such as PCBs in asphaltic potting compounds. The processes may use hydrocarbon solvents to dissolve the asphaltic waste, and an alkali metal reactant, such as a sod... | 02/10/2009 |
| 7427177 | Method of using pulsed ozone to treat soils containing organic contaminants A method of treating a solid matrix containing organic contaminants is provided. The method comprises the steps of a) injecting ozone into the solid matrix for a period of time known as the pulse duration; b) interrupting the injection of ozone into the solid matrix... | 09/23/2008 |
| 7351355 | Purifying agent for purifying soil or ground water, process for producing the same, and method for purifying soil or ground water using the same A purifying agent for purifying soil or ground water which comprises a water suspension containing iron composite particles comprising α-Fe and magnetite, and having an average particle diameter of 0.05 to 0.50 μm, an S content of 3500 to 10000 ppm and an Al conte... | 04/01/2008 |
| 7347980 | Process for treating fluorine compound-containing gas A gas stream containing at least one fluorine compound selected from the group consisting of compounds of carbon and fluorine, compounds of carbon, hydrogen and fluorine, compounds of sulfur and fluorine, compounds of nitrogen and fluorine and compounds of carbon, h... | 03/25/2008 |
| 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 |
| 7301066 | Method of making and using nanoscale metal Methods of treating ground water and methods for reducing contaminants (e.g., chlorinated compounds in contaminated ground water) to harmless compounds in the presence of an elemental metal treatment composition. Said methods comprise injecting a treatment solution ... | 11/27/2007 |
| 7282470 | Decontamination formulation with sorbent additive A decontamination formulation and method of making that neutralizes the adverse health effects of both chemical and biological compounds, especially chemical warfare (CW) and biological warfare (BW) agents, and toxic industrial chemicals. The formulation provides so... | 10/16/2007 |
| 7276468 | Granulated decontamination formulations A decontamination formulation and method of making that neutralizes the adverse health effects of both chemical and biological compounds, especially chemical warfare (CW) and biological warfare (BW) agents, and toxic industrial chemicals. The formulation provides so... | 10/02/2007 |
| 7270499 | Soil and/or groundwater remediation process A method of treating contaminants in soil and/or groundwater including adding a source of a peroxide and ozone to the in situ environment in amounts capable of producing reactive species sufficient to oxidize at least one of the contaminants without acidification of... | 09/18/2007 |
| 7271137 | Decontamination formulations for disinfection and sterilization Aqueous decontamination formulations that neutralize biological pathogens for disinfection and sterilization applications. Examples of suitable applications include disinfection of food processing equipment, disinfection of areas containing livestock, mold remediati... | 09/18/2007 |
| 7265255 | Soil decontamination method and apparatus for river bottoms A system and apparatus is provided for the decontamination of river bottoms. The system makes use of a barge, which is passed over the soil that needs to be decontaminated. The barge carries a high intensity laser, such as a 2,000 kW excimer YAG laser. The output of... | 09/04/2007 |
| 7265254 | Waste processing method, waste processing system, integrated waste processing method, and integrated waste processing system Chlorine-containing waste is processed inside a heating device, an alkali metal compound and a calcium compound are given into the heating device while the temperature of a solid phase inside the heating device is maintained at 400 to 1500° C., chlorine that is con... | 09/04/2007 |
| H2198 | Multi-stage pyrolysis systems for treating chlorine contaminated wastes A method of decontaminating solids contaminated with chlorinated hydrocarbons includes a first step of heating the contaminated solids at a temperature high enough to volatize chlorine contaminates but below a temperature range favorable to the formation of the diox... | 08/07/2007 |
| 7252771 | Method and device for decontaminating waters which are loaded with organic halogen compounds (halogenated hydrocarbons) The invention relates to a process and a device for decontaminating waters, especially groundwaters, which are heavily and complexly polluted with organic halogen compounds (HHC), in which process the contaminated waters are pre-treated in order to convert low-volat... | 08/07/2007 |
| 7220396 | Processes for treating halogen-containing gases There are disclosed various processes, apparatuses and systems for treating a halogen-containing gas such as F2 that involve generating a plasma in order to reduce chemically the halogen-containing gas into products that are more environmentally manageabl... | 05/22/2007 |
| 7166759 | Remediation method of media and iron powder for dehalogenation of hydrogenated hydrocarbons The invention provides a remediation method of soil, water and/or gases by prompt dehalogenation of halogenated hydrocarbons by allowing the halogenated hydrocarbons contained at least in one of the soil, water and/or gases to contact an iron powder containing about... | 01/23/2007 |
| 7138096 | Method for decomposition oxidation of gaseous pollutants An apparatus is provided for treating pollutants in a gaseous stream. The apparatus comprises tubular inlets for mixing a gas stream with other oxidative and inert gases for mixture and flame production within a reaction chamber. The reaction chamber is heated by he... | 11/21/2006 |
| 7129388 | Method for accelerated dechlorination of matter Accelerated dechlorination of soil and water contaminated with chlorinated solvents is achieved by stimulating anaerobic microorganisms and thus increasing the rate of biological mineralization of the solvents. This is accomplished by a treatment process consisting ... | 10/31/2006 |
| 7078130 | Metallic mesoporous transition metal oxide molecular sieves, room temperature activation of dinitrogen and ammonia production This invention provides novel stable metallic mesoporous transition metal oxide molecular sieves and methods for their production. The sieves have high electrical conductivity and may be used as solid electrolyte devices, e.g., in fuel cells, as sorbents, e.g. for h... | 07/18/2006 |
| 7060235 | Method for processing perfluorocompounds exhaust This invention provides a method for processing perfluorocompounds exhaust, that employs thermal energy produced by the reactions occurred in a plasma reactor to convert liquid water into steam. The steam is then directly introduced into the plasma reactor to partic... | 06/13/2006 |
| 7056483 | Method for converting halogens and organic compounds to inorganic substances A bed of calcium oxide and/or barium oxide in particulate form is continuously moved through a contact reaction zone such that it enters into countercurrent reaction with the feedstock and the reaction is performed in a reaction column equipped with an agitating/mov... | 06/06/2006 |
| 7033550 | Catalytic exhaust gas decomposition apparatus and exhaust gas decomposition method The catalytic exhaust gas decomposition apparatus spirals an exhaust gas containing therein a substance to be decomposed and a reactant gas, rectifies the spiral flow, and lets the substance to be decomposed contained in the exhaust gas react with the reactant gas a... | 04/25/2006 |
| 7030287 | Method of decreasing nitrate nitrogen and volatile organic compound in soil and groundwater A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an ester of a linear saturated fatty acid having 14 or more carbon atoms... | 04/18/2006 |
| 7019190 | Soil remediation system A process and apparatus for energy efficient remediation of soil contaminated with hydrocarbons, including desorbing the hydrocarbon contaminants from a bed of the soil by thermal desorption in a treated desorption chamber (20) and thereafter combusting the c... | 03/28/2006 |
| 6984767 | Sonication treatment of polychlorinated biphenyl contaminated media The invention consists of a method for treating polychlorinated biphenyl (PCB) contaminated media by: a) combining the media with a fluid containing one or more liquid hydrocarbons to form a media/fluid mixture; b) sonicating the mixture at audio frequency to extrac... | 01/10/2006 |
| 6984768 | Method for destroying halocarbon compositions using a critical solvent A method for destroying halocarbons. Halocarbon materials are reacted in a dehalogenation process wherein they are combined with a solvent in the presence of a catalyst. A hydrogen-containing solvent is preferred which functions as both a solvating agent and hydroge... | 01/10/2006 |
| 6905664 | Method for removal of PCDD and PCDF from combustion gases A method for the removal of micro-pollutants, in particular PCDD and PCDF, from the combustion gases resulting from the incineration of chlorinated organic wastes (ICG), the gases containing acidic products and traces of metals and being treated with catalytically a... | 06/14/2005 |
| 6894203 | Method of decreasing nitrate nitrogen and volatile organic compound in soil and groundwater A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an ester of a linear saturated fatty acid having 14 or more carbon atoms... | 05/17/2005 |
| 6695953 | Accelerated methods of oxidizing organic contaminants in aqueous mediums using corona induced reactions and particles therewith Novel accelerated methods involving corona discharge, and preferably pulsed streamer high voltage corona discharge, in combination with an effective amount of suitable particles to break down organic contaminants, such as phenol and phenol red, in aqueous... | 02/24/2004 |
| 6676913 | Catalyst composition and method of controlling PFC and HFC emissions The present invention relates to a catalytic process for the destruction of PFC's and HFC's using a catalyst which comprises aluminum oxide that has preferably been stabilized through the addition of a stabilizing agent (such as, titanium, zirconium, or c... | 01/13/2004 |
| 6673326 | Catalytic processes for the reduction of perfluorinated compounds and hydrofluorocarbons A process for reducing perfluorinated compounds and/or hydrofluorocarbon compounds in a sample uses a catalyst made from aluminum oxide (Al2 O3), and one or more enhancers selected from the group consisting of nickel, cobalt, and sul... | 01/06/2004 |
| 6660900 | Process for the non-incineration decontamination of materials containing hazardous agents A process for the low temperature, non-incineration decontamination of contaminated materials, such as chemical weapon components containing residual quantities of chemical warfare agents. The process includes the steps of (a) preparing a feed mixture con... | 12/09/2003 |
| 6653519 | Reactive nanoparticles as destructive adsorbents for biological and chemical contamination Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or met... | 11/25/2003 |
| 6649135 | Method of combustion or gasification in a circulating fluidized bed A material containing combustible components is burned or gasified in a circulating fluidized bed comprising a turbulence chamber, a solids separator connected to the upper area of the turbulence chamber, a return line leading from the solids separator to... | 11/18/2003 |
| 6650059 | Method of decomposing organic halide A discharge tube (11) made of a dielectric material extends through a hole (3) of a rectangular waveguide (1) and through a coaxial microwave cavity (4) so as to be coaxial with the central axis of the cavity (4). This discharge tube (11) has a double-tub... | 11/18/2003 |
| 6649044 | Process for the reductive dehalogenation of halogenated hydrocarbons The present invention relates to a process for the reductive dehalogenation of halogenated hydrocarbons. It comprises reacting halogenated hydrocarbons with a reducing metal and a hydrogen donating compound in the presence of an amine. Preferably, the hal... | 11/18/2003 |
| 6645449 | Method for eliminating halogenated and non-halogenated waste A method for eliminating halogenated and non halogenated waste, whereby waste is reacted with products containing metal oxide in an oxygen-free medium at temperatures ranging from 800° C. to 1100° C.... | 11/11/2003 |
| 6638488 | Method and apparatus for removing organic hazardous substances using selected solvents Method and apparatus for isolating, decomposing, and fixing the organic hazardous substances in a stable manner using chemical techniques and isolating and decomposing the organic hazardous substances from various waste mixtures. The temperature treatment... | 10/28/2003 |
| 6632973 | Method for decomposing or oxidizing dioxins and/or poly chlorinated biphenyls contained in liquid An object of the present invention is to provide a simple method which can efficiently convert dioxins and/or PCBs contained in liquid into unharmful substances. Such a method according to the present invention is by introducing a liquid containing dioxin... | 10/14/2003 |
