Patents for A62D 3 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances (9,310)
05/1999
05/06/1999WO1999021619A1 Method for treating household refuse incinerator ash
05/06/1999EP0913172A1 Method for treating incineration residues
05/06/1999EP0912214A1 Degradation of biodegradable polyester amides with enzymes
05/06/1999EP0841968B1 Mercury removal process
05/05/1999CN1215696A Method and apparatus for incineration treatment of caprolactam saponification waste lye to recover sodium carbonate
05/04/1999CA2117754C Mercury contaminated mud treatment
04/1999
04/28/1999EP0648255B1 Treatment of waste
04/27/1999US5898093 Treating leachable heavy metals in solid waste by contacting with a mixture of a sulfide, a calcium phosphate, and calcium carbonate; the phosphate precipitates any ferric ion to prevent oxidation of the metallic sulfide, stabilizing it
04/27/1999US5897996 Method for degrading polychlorinated biphenyls and novel microorganism
04/27/1999US5897780 Mixing with brine; separation by reverse osmosis using semipermeable membrane
04/27/1999CA2151299C Method for separating volative compounds in process streams
04/27/1999CA2096484C Thermal process of used relinings from hall-heroult electrolysis bath
04/22/1999DE19853800A1 Use of latex waste liquor for consolidating harmful reactive waste e.g. plastics from car battery shredder
04/21/1999EP0909812A2 Bacterial strains P230 and P212a/2 and methods for the microbial decontamination of materials polluted with phenoxy-herbicides
04/20/1999US5895832 Process for the treatment of contaminated material
04/20/1999US5895636 Contacting gas stream with catalytically effective amount of platinum and/or palladium supported on high surface area alumina stabilized with alkaline earth metal oxide and rare earth metal oxide
04/15/1999WO1998046943A9 Method and apparatus for containing and suppressing explosive detonations
04/14/1999EP0907427A1 Cleansing contaminants from a heterogeneous material using a sorption agent
04/14/1999EP0857193B1 Process for the confinement of solid materials
04/13/1999CA2083921C Process for removing halogenated organic compounds from waste gases
04/08/1999WO1999016510A1 Agent for eliminating heavy metals comprising an alkaline metal silicate and carbonate
04/08/1999WO1999016509A1 Agent for eliminating heavy metals comprising a phosphate compound
04/07/1999EP0906773A1 Decontaminating composition
04/07/1999EP0906140A1 Biodegradation of metal cyanides
04/06/1999US5891345 Destroying organic compounds
04/06/1999US5891011 Vitrification of waste
04/06/1999CA2070630C Method and apparatus for effecting gas-liquid contact
04/06/1999CA2026506C Process for the reductive dehalogenation of polyhaloaromatics using calcium and methanol
04/01/1999WO1999015239A1 Method for reductive dehalogenation of halogen-organic substances
04/01/1999DE19743109A1 Chemical decomposition of difficultly degradable halogen compounds especially PCBs
04/01/1999DE19742297A1 Verfahren zur reduktiven Dehalogenierung von halogenorganischen Stoffen Method for the reductive dehalogenation of halogenated organic substances
04/01/1999CA2304802A1 Method for reductive dehalogenation of halogen-organic substances
03/1999
03/30/1999US5888396 Bioremediation of chlorinated aliphatic, chlorinated aromatic, or non-chlorinated atomatic hydrocarbon pollutants; low tetrachloroethene toxicity and improved degradation compared to conventional bacteria
03/30/1999CA2079467C Biological system for degrading nitroaromatics in water and soils
03/26/1999WO1999016722A1 Method of production of cement
03/25/1999WO1999013950A1 Demilitarization of chemical munitions
03/24/1999EP0903185A2 Composition for solid waste remediation
03/24/1999EP0880378A4 Method and apparatus to destroy chemical warfare agents
03/24/1999CN1211931A Waste liquid treatment
03/23/1999US5886316 Method and apparatus for treating waste and for obtaining usable by-product
03/23/1999US5885602 Process for the persistence control of chemicals released into the environment
03/23/1999US5884569 Method and apparatus for containing and suppressing explosive detonations
03/18/1999DE19740477A1 Conversion to glass of filter dust and residues from flue gas scrubbing with high chlorine contents
03/18/1999DE19729691C1 Device for decontaminating railway track wooden sleepers
03/17/1999EP0901801A1 Process for low temperature pyrolysis of dioxins
03/17/1999EP0901800A1 Process to reduce the elution of heavy metals
03/17/1999CN1211197A Aqueous silicate compositions
03/16/1999CA2093016C Modular oxidation chamber
03/11/1999WO1998053463A3 Method for acid oxidation of radioactive, hazardous, and mixed organic waste materials
03/11/1999DE19738593A1 Stabilization of thermal waste treatment ash or slag
03/09/1999US5880060 Compositions to remove heavy metals and radioactive isotopes from wastewater
03/09/1999US5879646 Treatment of NH3 -containing gases
03/09/1999CA2149114C Process for stabilizing metals in ash
03/04/1999WO1999010298A1 Treatment of tnt-contaminated soil
03/04/1999WO1999010086A1 Method and apparatus for ionizing all the elements in a complex substance such as radioactive waste
03/03/1999EP0898985A1 Waste processing method under supercritical conditions and apparatus therefor
03/03/1999EP0883779A4 Method and apparatus for containing and suppressing explosive detonations
03/02/1999US5877395 Method and apparatus for the controlled reduction of organic material
03/02/1999US5877393 Treatment process for contaminated waste
03/02/1999US5877392 Photodecomposition using ultraviolet light
03/02/1999US5877164 Complexes
03/02/1999US5877014 For degradation of polymeric azo, anthraquinone, or triarylmethane dyes and pesticides
02/1999
02/24/1999EP0897968A2 Method for treating plastics and solid fuel obtained by the same method
02/23/1999US5874291 Degradation of environmental toxins by a filamentous bacterium
02/23/1999US5873675 Method for hazardous waste vitrification
02/23/1999US5873371 Treating solution consisting of 75% alcohol and 25% of hydrogen peroxide
02/23/1999CA2144858C Method for removing mercury from contaminated soils and industrial wastes and related apparatus
02/18/1999WO1999007443A1 Conversion of chlorinated, brominated and/or iodinated fluorocarbons and hydrofluorocarbons
02/17/1999EP0843592A4 Dehalogenation of halogenated hydrocarbons in aqueous compositions
02/10/1999EP0895529A1 Method of nonhazardous removal of paint containing heavy metals and coating preparation for performing the same
02/09/1999US5868943 Waste treatment process for the disposal of dichlorodifluoromethane by conversion into polytetrafluoroethylene
02/09/1999US5868919 A power supply, high energy capacitor, high energy trigger device and probe and reactor arrangement
02/04/1999WO1999004861A1 Method for eliminating halogenated and non halogenated waste
02/04/1999DE19732594A1 Destruction of chemical warfare substances
02/03/1999EP0894512A1 Use of stabilised decontaminating compositions for the decontamination of toxic agents and/or pollutants
02/02/1999US5866752 Irradiating the gas stream in intimate contact with a semiconductor catalyst under laminar flow conditions
02/02/1999US5866095 Method and system of formation and oxidation of dissolved atomic constitutents in a molten bath
02/02/1999US5865959 Back-side illuminated organic pollutant removal system
02/02/1999CA2175053C Perchlorate removal process
01/1999
01/28/1999WO1999004086A1 Pretreatment of wood particulates for removal of wood extractives
01/28/1999WO1999003609A1 A process for separating a contaminating substance from a material contaminated by said substance
01/28/1999DE19747793C1 Simple, cost-effective, almost quantitative removal of white phosphorus from mixture
01/27/1999CN1206453A Method and apparatus for containing and suppressing explosive
01/21/1999DE19730653A1 Microbiological degradation of halogenated hydrocarbon(s) in contaminated media
01/21/1999DE19730302A1 Treatment of pipes contaminated with mercury
01/21/1999DE19730223A1 Chemical-biological waste disposal of organic solids, e.g. polymers or ion-exchange resins
01/20/1999EP0781174A4 Methods of decontaminating soils containing hazardous metals
01/19/1999US5862494 Method for entrapping and minimizing moisture bearing low-level radioactive and mixed waste material
01/19/1999US5860908 Water insoluble heavy metal stabilization process
01/14/1999WO1999001236A1 Method of disposal of waste containing heavy metal and sealing compound suitable for the disposal
01/14/1999WO1999001182A1 Equipment and method for self-contained chlorination and reduction
01/13/1999EP0890629A1 Pyrolytic Reactor for Waste Plastic
01/13/1999CN1205032A Novel microorganism and method for environmental purification using the same
01/12/1999US5859306 Pretreatment with oxidizer
01/12/1999US5859064 Chemical warfare agent decontamination solution
01/12/1999US5858763 Thermophilic methanotrophs for high temperature oxidations
01/12/1999US5858059 Injecting feed streams through conduits into molten bath, creating jets which combine to form fan jet region
01/07/1999WO1999000159A1 A method to reduce hexavalent chromium in soils and other
01/07/1999EP0888153A1 Method for hot and supercritical water oxidation of material using specific reactants
01/07/1999DE19828665A1 Verfahren zur Reduktion von sechswertigem Chrom in Böden, Sedimenten, Industrieabfällen und anderen kontaminierten Materialien unter Verwendung von Ascorbinsäure A process for the reduction of hexavalent chromium in soils, sediments, industrial wastes and other contaminated materials using ascorbic acid
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