Hazardous or toxic waste destruction or containment inventions 09/08

20080234529 - Treatment of elemental mercury: The invention concerns a method for the stabilisation and disposal of elemental mercury, the method comprising treating the elemental mercury with a cementitious particulate filler material which additionally comprises an immobilisation treatment. In a preferred embodiment, the immobilisation treatment comprises an amalgamation treatment prior to the treatment with a cementitious... Agent: Moore & Van Allen PLLC

20080234530 - Atmospheric pressure plasma treatment of gaseous effluents: The invention relates to a method for the conversion of a gas or gas mixture and, in particular, a fluorinated gaseous effluent. According to the invention, at least one bond between two atoms of at least one molecule of the gas or gas mixture is broken under the influence of... Agent: Air Liquide Intellectual Property

20080228022 - Vacuumable gel for decontaminating surfaces and use thereof: The present invention relates to a vacuumable gel that can be used for decontaminating surfaces, and also to the use of this gel. The decontamination may be, for example, a radioactive decontamination. The gel of the present invention is composed of a colloidal solution. It comprises from 5 to 25... Agent: Brinks, Hofer, Gilson & Lione

20080221379 - Composition and method to control acid rock drainage: A composition to control acid rock drainage is provided. The composition includes a slurry made from water and solids, the solids containing powders of limestone, clay and magnesium oxide or magnesium hydroxide. In some instances, the slurry is thixotropic and contains between 10 to 75 weight percent of solid powders.... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20080221380 - Soil decontamination by mechanically activated oxidation: A method of performing soil decontamination including mechanically mixing the soil with solid oxidant prior to any addition of water and until an exothermic reaction between the oxidant and contaminants within the soil occur, adding only necessary water to obtain an homogeneous mix between the soil and the oxidant, and... Agent: Ogilvy Renault LLP

20080214886 - Evaporator/calciner: Disclosed herein is provided an evaporator/calciner in which hazardous materials, such as radioactive liquids, are converted into chemically stable, solid forms by evaporating, drying and calcination within a single vessel, that can then be sealed and used for long term storage.... Agent: Osler, Hoskin & Harcourt LLP (osler Ottawa)