Patents for A62D 3 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances (9,310)
09/1999
09/14/1999US5951457 Determining the amount of ascorbic acid necessary to chemically reduce sufficient hexavalent chromium to a lower valence state, mixing the determined amount of ascorbic acid with the contaminated soils, sediments, and fills
09/10/1999WO1999044724A1 Method for cleaning interior spaces or objects contaminated by harmful substances such as formaldehyde in particular
09/10/1999WO1999044689A1 Stabilization of lead bearing waste
09/10/1999WO1999044688A1 Inertization of waste material contaminated with heavy metals
09/10/1999WO1998046063A3 System and method for disposal of hydrazine propellants and other energetic materials
09/09/1999DE19809479A1 Verfahren zum Sanieren von mit Schadstoffen, insbesondere mit Formaldehyd, belasteten Innenräumen bzw. Gegenständen Method for remediating with pollutants, especially formaldehyde, polluted indoor or objects
09/08/1999EP0939772A1 Plant rhamnogalacturonan ii complexation of heavy metal cations
09/07/1999US5948708 Vapor protection suit and fabric having flash fire resistance
09/07/1999US5947888 Process for insolubilizing and consolidating spent linings from hall-heroult electrolysis cells
09/07/1999US5947887 Extruder glass-melter process for vitrification of nuclear and other toxic wastes
09/07/1999CA2184722C An indexable insert
09/01/1999EP0938576A1 Beauvericin detoxification compositions and methods
09/01/1999EP0938575A1 Zearalenone detoxification compositions and methods
09/01/1999EP0938373A1 Corona method and apparatus for altering carbon containing compounds
08/1999
08/31/1999US5945331 Microorganisms, and method for biodegradation of organic compounds and method for environmental remediation
08/25/1999EP0937483A1 Solid waste treatment agent and treatment method of solid waste
08/25/1999EP0936953A1 Compost decontamination of soil contaminated with chlorinated toxicants
08/24/1999US5942552 Combining a biodegradable foaming agent, a sporogenus bacteria containing fire extinguisher to extinguish a fire site where fluorinated surfactant are present, comprising mixing with water, turbulating and applying to fire site
08/19/1999WO1999041356A1 Strain of alcaligenes latus bacteria used for the decomposition of polychlorinated biphenyls
08/19/1999WO1999040975A1 Method of bioremediating an organic hazardous substance
08/19/1999DE19806758A1 Chemical decomposition of bis(2-chloroethyl) sulfide and homologues for destruction of chemical weapons
08/17/1999US5939035 Process for treating spent potlining containing inorganic matter
08/17/1999CA2044965C Heat shock treatment of used brasques from hall-heroult electrolysis process cells
08/11/1999CN1044567C Comprehensive utilization and eliminating poison of chromium cinder
08/10/1999US5937267 System, device and method for quantification of polychlorobiphenyls
08/10/1999US5936137 Process for destroying halogenated compounds
08/10/1999US5935618 Apparatus for manufacturing molded materials solidified by sulfur
08/05/1999WO1998055822A3 Process and device for bioremediation of explosives
08/04/1999EP0932803A1 Refrigerant disposal
08/04/1999EP0932663A1 Moniliformin detoxification compositions and methods
08/04/1999EP0617740B1 Extraction of mercury and mercury compounds from contaminated material and solutions
08/03/1999US5932472 Method for degradation of polychlorinated biphenyls in soil
08/03/1999US5931773 Method for treatment of solid waste to minimize permeability of the waste
07/1999
07/29/1999WO1999037823A1 High efficiency recovery process and apparatus for the pyrolysis treatment and halogenation of multi-element waste
07/28/1999EP0930929A1 Microbiological method for eliminating halogenated ethenes
07/28/1999EP0930925A1 Extracting method and plant using a supercritical fluid
07/28/1999EP0772663B1 Method for recycling treated wood and installation for implementing the method
07/27/1999US5929282 System and method for disposal of hydrazine propellants and other energetic materials
07/27/1999US5928927 Enzymatic detoxification of organophosphorus compounds
07/27/1999US5928859 Detection and biodegradation of explosives
07/20/1999US5926771 Providing apatite-like material precursor, introducing precursor into aqueous solution containing toxic heavy metals and radioactive materials, creating monolithic apatite-like material in which radioactive or toxic material is immobilized
07/14/1999EP0928227A1 A method for the treatment, in particular stabilization, of materials containing environmentally noxious constituents, especially from the incineration of waste, as well as a plant for carrying out the said method
07/13/1999US5924047 Hydrolysis
07/13/1999US5922926 Method and system for the destruction of hetero-atom organics using transition-alkaline-rare earth metal alloys
07/08/1999WO1999034370A1 Method for packaging industrial, in particular radioactive, waste in apatite ceramics
07/08/1999WO1999033952A1 Novel coriolus versicolor fungus strain useful for treating polluted materials
07/08/1999WO1999033585A1 Method for treating a material contaminated by resistant polluting compounds
07/08/1999WO1999033525A1 Wet type method of rendering dioxins innoxious
07/08/1999WO1999033524A1 Method for treating pcb-containing waste oil
07/08/1999DE19758282A1 Rapidly decontaminating building components, e.g. removing harmful preservative from wood
07/06/1999US5919696 Method for microbially decomposing organic compounds and method for isolating microorganism
07/06/1999US5919001 Process for simultaneously removing lead, copper and mercury from contaminated soils
07/01/1999WO1999032636A1 Biodegradation of explosives
07/01/1999WO1999032397A1 Production of one or more useful products from lesser value halogenated materials
06/1999
06/29/1999US5916123 Fixation and stabilization of metals in contaminated soils and materials
06/29/1999US5916122 Solidification of aqueous waste
06/24/1999WO1999030781A1 Formulation and method for neutralization of formaldehyde
06/24/1999DE19804266A1 Recycling preservative-treated wood, classified as hazardous waste
06/23/1999CN1220174A Process for recovery of waste chromium liquid
06/22/1999US5914436 Method for the destruction of unwanted compounds using metal oxides composites
06/22/1999US5914031 Increasing kinetics of waste effluents or sludge decomposition by adjusting reaction temperature and pressure in the presence of reducing agent without adding hydrogen or a catalyst
06/19/1999CA2225367A1 Containerized metal fixation apparatus
06/17/1999WO1999029913A1 Feed injection device and method for control of accretion
06/17/1999WO1999029885A1 Degradation of biodegradable polymers
06/16/1999EP0922470A1 Process for treatment of residues espesially incineration residues of municipal and industial wastes
06/16/1999EP0922012A2 Apparatus and method for oxidizing organic materials
06/16/1999EP0832393B1 Process for disposing of dangerous products containing explosives and poisons and suitable exploding and incineration chamber therefor
06/16/1999EP0527959B1 Biological system for degrading nitroaromatics in water and soils
06/16/1999CN1219920A Thermophilic methanotrophs for high-temp. oxidations
06/15/1999US5911868 Electrolysis within multicompartment cell having respective corrosion resistant electrodes immersed in membrane-separated anolyte and catholyte solutions where organic waste is concentrated on anolyte side
06/10/1999WO1999028239A1 Apparatus and method for constant flow oxidizing of organic materials
06/10/1999WO1999028019A1 Method and catalyst for the oxidation of gaseous halogenated and non-halogenated organic compounds
06/10/1999DE19754063A1 Abbau von biologisch abbaubaren Polymeren Degradation of biodegradable polymers
06/09/1999EP0858357B1 Methods for decomposing quinolones and naphthyridones
06/09/1999EP0738189B1 Oxidative cleaning process of contaminated slurries or slurried earth
06/09/1999EP0725688B1 Method for neutralizing waste
06/08/1999US5910440 Method for the removal of organic sulfur from carbonaceous materials
06/08/1999US5910294 Ozone depleting nitrogen difluoride removed from gas in form of metal halides, carbon dioxide and nitrogen gas
06/03/1999WO1999026736A1 Bacterium capable of biodegradation of wastes
06/02/1999EP0918559A1 Paint for nonhazardous removal of heavy metals and method for using the same
06/02/1999CN1043510C Process for removal of pesticides from ginseng roots
06/01/1999US5908774 Remediation of pesticide-contaminated soil
06/01/1999US5908564 Tunable, self-powered arc plasma-melter electro conversion system for waste treatment and resource recovery
05/1999
05/27/1999DE19750894A1 Reducing soluble chromium content of wood ash
05/26/1999EP0917521A1 Method for in-situ immobilisation of heavy metals and/or sulphate in water-containing zones
05/26/1999EP0788395B1 Carbonization of halocarbons
05/26/1999EP0741749B1 Mercury binding polypeptides and nucleotides coding therefor
05/25/1999US5907077 Method and apparatus for treatment of freon gas
05/25/1999US5906797 Treatment of NF3 -containing gases
05/25/1999CA2095931C Process for fixing lead-contaminated ecologically hazardous industrial waste materials using clinoptilolite zeolite
05/20/1999DE19740401C1 Process breaks down industrial particulate or gaseous wastes in foam
05/19/1999EP0915724A1 Plasma incineration method
05/19/1999EP0915723A1 Shower head with switching of spray mode
05/18/1999US5905183 Process for reducing the residual chloride concentration in copper containing solids
05/18/1999US5904909 Methods for removing and decomposing methyl bromide from fumigation
05/12/1999EP0914877A1 Method of decomposing dioxins
05/12/1999EP0914218A1 Apparatus and method for hazardous waste vitrification
05/11/1999US5902744 Compost decontamination of soil contaminated with chlorinated toxicants
05/11/1999US5902734 Bioremediation of ground water or waste water containing methyl t-butyl ether by incubating under aerobic conditions, producing carbon dioxide within 70 hours
05/11/1999US5902392 Carrier coating comprising a heavy metal-reacting phosphate or metal sulfide, a polymeric binder and a buffer; detoxification; quick-drying; uniformity; consisteny; nondripping; removed by the usual methods, e.g sand blasting
1 ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 ... 94