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| Number | Title | Issue Date |
| 7287933 | Process for the remediation of soil polluted by organic compounds An improved process is described for the removal of organic pollutants from soil by extraction with a lipophylic solvent, wherein the improvement consists in the fact that the purified soil is treated with water to remove the residual solvent. This process allows th... | 10/30/2007 |
| 7237753 | Debris collecting bag and bag holder A debris collector is provided that includes a sleeve including a top opening and a bottom opening, the sleeve being operable to be attached to a bag adjacent to the bottom opening, the sleeve defining an interior. A support structure is connected to the sleeve, the... | 07/03/2007 |
| 7033507 | Method for removing metals from acid mine drainage A method for removing metal contaminants from acidic mine wastewater using lignin derivatives, such as lignosulfonates and kraft lignin, an alkali coagulant, such as a lime compound, and an alkaline composition for increasing the pH. The lignin derivatives are dispe... | 04/25/2006 |
| 6945734 | In-situ thermochemical solidification of dense non-aqueous phase liquids A method for in-situ dense non-aqueous phase liquids treatment in which a subsurface source area comprising at least one rapid release contaminant is located and free water removed therefrom. The subsurface source area is then heated to a temperature suitable for ex... | 09/20/2005 |
| 6841515 | Production and use of biosolid granules This invention relates to the production and use of encapsulated and/or concentrically-constructed fertilizer or bioremediation granules such as, for example, granules of 0.5 mm to 10 mm in diameter constructed so that there are at least two components to the granul... | 01/11/2005 |
| 6681675 | Remote hazardous devices interdiction process and apparatus A method for remotely accessing packages suspect of containing hazardous devices. The method includes using a continuous stream of high velocity abrasive particles and/or fluid(s) created in-situ while attached to a remotely or autonomously operated vehic... | 01/27/2004 |
| 6666938 | Lead abatement system and method for application A lead abatement method approved for use by governmental agencies is described. The method id achieved by first applying a highly compliant protective film over a lead contaminated surface. The film includes an exposed layer and an adhesive layer composed... | 12/23/2003 |
| 6261029 | Density-enhanced remediation of non-aqueous phase liquid contamination of subsurface environments A method for remedying contamination of a subsurface environment by a non-aqueous phase liquid that is denser than water (DNAPL). The subsurface environment has a resident aqueous phase and a DNAPL phase. A dense aqueous solution that has a density greate... | 07/17/2001 |
| 6190092 | Density-enhanced remediation of dense non-aqueous phase liquid contamination of subsurface environments A method for remedying contamination of a subsurface environment by a non-aqueous phase liquid that is denser than water (DNAPL). The subsurface environment has a resident aqueous phase and a DNAPL phase. A dense aqueous solution that has a density greate... | 02/20/2001 |
| 6186938 | Surfactant enhanced intrinsic remediation for risk based site closure Some ground water sites are capable of achieving risk-based closure without remedial efforts due to the soil's natural intrinsic remediation. However, in many cases this may not be possible due to the magnitude of the contamination. Surfactant enhanced in... | 02/13/2001 |
| 5860907 | Method for in situ remediation of waste through multi-point injection Method and apparatus for treating confined material such as buried waste or areas of contaminated earth by injecting a plurality of high velocity jets of treating fluid into the material over a limited depth in multiple directions from each of a plurality... | 01/19/1999 |
| 5846179 | Treatment of acid generating sulfide bearing material The present invention combines an alkaline mixture, adjuvant surfactant, and water, thereby creating a treatment mixture, for eliminating acid generation in sulfide bearing material. After determining a level of acidity of a sulfide bearing material, a us... | 12/08/1998 |
| 5833395 | Method for reducing the concentration of contaminating radioactive material in contaminated soil A method for reducing the concentration of radioactive material in a contaminated area by removing contaminated soil from the contaminated area; determining a field survey specific activity concentration representative of the remaining soil in the contami... | 11/10/1998 |
| 5738623 | Application of dry spreadable water dispersible granule compositions This invention relates to the use of activated charcoal granule compositions which, when dry spread and "watered-in" to a site, reduces undesirable biological activity of deleterious organic compounds. When wet, these granules disperse very rapidly with a... | 04/14/1998 |
| 5667757 | Apparatus for safely reacting active metals Disclosed is a method for conversion in a container of reactive material comprising at least one selected from the group consisting of sodium, potassium and lithium into its respective metal hydroxide. First the container is purged of essentially all oxyg... | 09/16/1997 |
| 5587324 | Process for coal tar remediation Methods are provided for the remediation of sites containing coal tar compositions that contain polynuclear aromatic compounds. The remediation entails altering the coal tar compositions to substantially decrease the bioavailability of the polynuclear aro... | 12/24/1996 |
| 5562593 | Split ring containment attachment device A containment attachment device 10 for operatively connecting a glovebag 200 to plastic sheeting 100 covering hazardous material. The device 10 includes an inner split ring member 20 connected on one end 22 to a middle ring member 30 wherein the free end ... | 10/08/1996 |
| 5530176 | Method and apparatus for disposing of hazardous waste material in a cement-producing kiln A method and apparatus for disposing of hazardous waste material by burning in a cement-producing kiln includes providing a predetermined quantity of hazardous waste material in a predetermined configuration, and providing an apparatus for aerating and us... | 06/25/1996 |
| 5525299 | Container closure A cap having two chambers provides a means for and method of decomposing or neutralizing a hazardous chemical residue in a container after it has been emptied at the point of consumption. One of the chambers is a screw cap which normally closes and seals ... | 06/11/1996 |
| 5491282 | Apparatus and method for neutralizing a contaminated heating element Apparatus for neutralizing a heating element contaminated with acid. A housing is provided which receives water and a base material. The water and base material combine within the housing to form a neutralizing agent. The neutralizing agent is then passed... | 02/13/1996 |
| 5362467 | Process for producing carbon dioxide clathrate A carbon dioxide clathrate having a lump diameter enough to precipitate on a desired abyssal position of the sea without being drifted by a seawater flow of the abyss can be produced by bringing an aqueous solution into contact with carbon dioxide with th... | 11/08/1994 |
| 5358614 | Method and apparatus for the removal of bioconversion of constituents of organic liquids A method and apparatus for the removal or conversion of constituents from bulk organic liquids. A countercurrent biphasic bioreactor system is utilized to disperse and recoalesce a biocatalyst contained in the aqueous liquid phase into the organic liquid ... | 10/25/1994 |
| 5235795 | System for the delivery, storage and disposal of medical supplies A system for the delivery, storage and disposal of medical supplies including a lidded receptacle for receiving the supplies and facilitating their delivery to a use site, such lidded container subsequently being employed in the collection and ultimate di... | 08/17/1993 |
| 5160586 | Ozone decomposing reactor There is disclosed an ozone decomposing reactor which comprises: a catalyst structure composed of a carrier having at least one passage extending therethrough for allowing an ozone containing fluid to pass through the catalyst structure and a catalyst and an e... | 11/03/1992 |
| 5134944 | Processes and means for waste resources utilization Gasification, slagging, melting, and vaporizing components of waste materials and reactive carbon fuel, in variable proportions, at low pressures, using oxygen and steam reactants, effects very high temperatures, producing syngas (hydrogen and carbon mono... | 08/04/1992 |
| 5130092 | Biological waste sterilization and fuel product therefrom A process for sterilizing biological waste such as medical waste and a biomass fuel product from sterilized waste are disclosed. The biological waste preferably includes waste capable of sorbing substantial amounts of a liquid fuel having a boiling temper... | 07/14/1992 |
| 5100638 | Method for photochemically decomposing organic materials A method is described for photochemically decomposing organic materials into hydrogen gas and elemental carbon, preferably in the form of carbon black, and to a smaller extent carbon monoxide. The organic materials are induced to decompose primarily and s... | 03/31/1992 |
| 4822379 | Solid fuel composition from waste products A solid fuel comprised of waste materials and a method of using the same are disclosed. The composition is made up of a heating value component, a neutralizing component and a nuisance waste component. Each of these components is a material which is readi... | 04/18/1989 |
| 4453476 | Liquid waste feeding system for an incinerator A liquid waste feeding system to be used in conjunction with a solid waste, pyrolytic incinerator. The liquid waste is atomized and injected into the upper end portion of the pyrolysis chamber of the incinerator through a retractable nozzle assembly. The ... | 06/12/1984 |
| 4284514 | Treatment of hazardous waste In a process for pretreating hazardous waste prior to solidification the waste is received in containers (10). The containers are deposited in a large vessel containing a chemical pretreatment media (9) and subjected to an agitating process in the vessel ... | 08/18/1981 |
| 4254089 | Product recovery from alkali metal wastes A method and apparatus for safely and economically converting sodium sludge and other dangerous wastes containing metallic sodium, lithium and potassium into products of economic value. The process reacts solid or molten wastes with an aqueous solution to... | 03/03/1981 |
| 4178109 | Method for the disposal of nuclear or toxic waste materials The earth has several subduction zones where the tectonic plate descends, adjacent the nondescending earth crust, into the central region of the earth. Described is a method and apparatus for the disposal of nuclear and other toxic waste materials compris... | 12/11/1979 |
