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RE43350 |
Microporous diffusion apparatus
Apparatuses for removal of volatile organic compounds in a soil formation include a microporous diffuser for injecting air and gaseous ozone as bubbles into water in the soil formation. The gaseous...
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8157476 |
In-situ systems and methods for the immobilization of contaminants
The various embodiments of the present invention relate generally to remediation of contaminants in the environment, and more specifically to improved chemistries, systems, and methods for in-situ...
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8061283 |
Method of recycling exhaust emissions
An emissions recycling system is used on a vehicle towing an agricultural implement to enrich the fertility of the soil. The system includes an exhaust collector for collecting exhaust emissions...
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7963720 |
Polymer coated nanoparticle activation of oxidants for remediation and methods of use thereof
Methods of decreasing the amount of one or more contaminants in contaminated soil comprise introducing polymer-coated nanoparticles into the contaminated soil, optionally with other reagents. The...
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7914232 |
Method for reclaiming lands polluted by hexavalent chromium
A procedure for the on-site reduction to a predetermined level of the concentration of hexavalent chromium in a saturated or unsaturated contaminated area or ground, in which an in-depth treatment...
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7901583 |
Treatment of aqueous suspensions
A process in which material comprising an aqueous liquid with dispersed particulate solids is transferred as a fluid to a deposition area, then allowed to stand and rigidify, and in which...
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7896577 |
Thixotropic gel for vadose zone remediation
A thixotropic gel suitable for use in subsurface bioremediation is provided along with a process of using the gel. The thixotropic gel provides a non-migrating injectable substrate that can provide...
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7887880 |
Preparation and application of stabilized iron nanoparticles for dechlorination of chlorinated hydrocarbons in soils, sediments, and ground water
A stabilized, chemically reactive, metallic nano-material effective for degradation of chlorinated organic compounds in soils, sediments and groundwater. The nano-material is composed of a magnetic...
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7875188 |
Treatment of aqueous suspensions
A process in which a suspension comprising dispersed particulate material in an aqueous medium is transferred as a fluid to a deposition area, then allowed to stand and rigidify, and in which...
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7828495 |
System and method of chemical injection using an adjustable depth air sparging system
A supplemental fluid adjustable depth air sparging system which is used to remediate contaminants from groundwater within the soil. An adjustable depth air injection point injects compressed air...
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7811458 |
Method for treating aqueous sludge, material so produced and the use thereof
The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer...
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7748931 |
Chemical injection using an adjustable depth air sparging system
A supplemental fluid adjustable depth air sparging system which is used to remediate contaminates from groundwater within the soil. An adjustable depth air injection point injects compressed air,...
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7722292 |
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...
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7667087 |
Soil and water remediation method and apparatus
Disclosed is a method, apparatus and system for the remediation of contaminated soils, groundwater and water. A combination of reagents such as persulfate and ozone or persulfate, ozone and...
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7645092 |
Treatment of in ground chromium ore processing residue
In methods for treatment of in ground chromium ore processing residue contamination, ferrous sulfide is provided as a substantially insoluble material in the residue deposit. The ferrous sulfide...
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7635236 |
In situ remediation of inorganic contaminants using stabilized zero-valent iron nanoparticles
A method for preparing highly stabilized and dispersible zero valent iron nanoparticles and using the nanoparticles as a remediation technology against inorganic chemical toxins in contaminated...
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7595007 |
Amino acid and carbohydrate polymers for use in soil retention, water conservation, water clarification, and dust control
Water-soluble amino acid copolymers, modified polysaccharides, acrylamide polymers, and combinations thereof, are described, for uses including flocculation of solids, particularly flocculation of...
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7576254 |
Oxidation of organic compounds at high pH
Organic compounds are removed from contaminated soil, ground water and the like by treatment with a combination of a water soluble peroxygen compound, such as sodium persulfate, and a pH modifier...
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7553105 |
Method and compositions for treatment of subsurface contaminants
Compositions and methods are provided for oxidizing subsurface contaminants. Compositions include compatible combinations of surfactants, cosolvents and chemical oxidants. Compositions have been...
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7553423 |
Method for treating aqueous sludge, material so produced and the use thereof
The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer...
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7537706 |
Microporous diffusion apparatus
Apparatus for active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer...
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7524141 |
Treatment of environmental contaminants
Contaminants, such as volatile organic compounds, are removed from an environmental medium, such as contaminated soil, rock, groundwater, waste water and the like, by treatment with a combination...
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7473372 |
Oxidation of organic compounds
An improved method for treating organic compounds present in soil, groundwater and other environments is disclosed. The method involves the use of a peroxygen compound and a chelated transition metal.
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7459089 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Microporous diffusion apparatus
Apparatus for active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer...
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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...
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7399141 |
System for removing contaminants from soil
A method and system for removing contaminants from contaminated soil at a site utilizes particle size segregation and particle density segregation to yield a plurality of fractions, whereby each of...
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7361283 |
Extraction and treatment of heavy metals
Contaminated waste streams or soil or sludge is subjected to a first treatment stage with an acid liquor at a pH below 2 and at a solids content from 5 to 30%; then the liquid and solid phases from...
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7347647 |
Composite material for a permeable reactive barrier
Compositions in accordance with the principles of the present invention comprise a compressed mixture of fibrous organic materials and multi-valent metals used to remove organic chemical...
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7334965 |
Method for treating a body of a polluted porous medium
A method for treating a body of a polluted porous medium, includes the steps of: preparing a reactive solution containing nanoparticles; injecting the reactive solution into the body of the...
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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...
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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...
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7264734 |
Method for treating dredged material
The present invention provides a method for treating dredged material in which liquid is first added to the dredged material, and dewatering the dredged material to obtain a filtrate and a solid...
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7264419 |
System and method for remediating contaminated soil and groundwater in situ
A system and method for the in-situ removal or remediation of contaminants in a soil formation containing a subsurface groundwater aquifer, the method comprising the steps of: injecting a first...
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7255791 |
In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcohol
A method and apparatus for the in situ purification of aquifers contaminated with ethers and/or alcohols using a bacterial culture, a method of delivering the culture to the subsurface, and an...
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7255514 |
Method and system for removing contaminants from soil
A method and system for removing contaminants from contaminated soil at a site utilizes particle size segregation and particle density segregation to yield a plurality of fractions, whereby each of...
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7235181 |
Metal powder for decomposition of organic halogen and method for manufacturing the same
The present invention is to provide metal powder capable of decomposing and remedying various range of organic halogen compounds including organic halogen compounds which are difficult to be...
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7220366 |
Process for purifying contaminated soil or groundwater with iron particles
Iron particles for purifying soil or ground water of the present invention comprise a mixed phase of α-Fe phase and Fe3O4 phase, and having a BET specific surface area of 5 to 60 m2/g, an Fe ...
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7204660 |
Humic mineral reagent and method for the production thereof, method for rehabilitating polluted soils, method for detoxification of wastes of extracted and processed mineral products and recultivating rock dumps and tailing storages, method for sewage water treatment and method for sludge utilisation
The humic-mineral agent from naturally occurring carbon-series humites and caustobioliths comprises humic acids and salts thereof, naturally hydrated humic acids, hydrolyzed humic acids, hydrated...
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7175770 |
Methods and systems for groundwater remediation
The present invention provides systems and methods for the remediation of contaminated water, soils and/or sediments. In some embodiments, the system includes one or more conduits for injection of...
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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...
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7160471 |
In-situ generation of oxygen-releasing metal peroxides
A method for remediation of contaminants in soil and groundwater is disclosed. The method generates oxygen releasing solids in groundwater or soil by injecting an aqueous energetic oxidant solution...
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7160060 |
System and method of remediation of contaminants
The present invention discloses a remediation system and method of use thereof for degrading contaminants, including chlorinated organics, volatile organic chemicals, and polycyclic aromatic...
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7128498 |
Method of containing and at least partially remediating contaminants in soils, including sediments
In one application for containing and remediating contaminants in sediments, employing a geocomposite eliminates the need for a thick cap or removal and subsequent ex situ treatment of the...
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7108455 |
Carbureted bioventing for enhanced control of in-situ bioremediation
A method for removing volatile and semi-volatile contaminants from groundwater in which the contaminants are stripped from the groundwater by sparging with an inert carrier gas and the stripped...
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7056061 |
Remediation of contaminates including low bioavailability hydrocarbons
A method of treatment of a contaminated material contaminated with an organic compound. The method includes treating the contaminate with a bioremediation step followed by a chemical oxidation...
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7033492 |
Groundwater and subsurface remediation
A method of treating a site containing contaminants and apparatus are described The method and apparatus sparges the site with an air/ozone gas stream delivered with a hydroperoxide, which is a...
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7029202 |
Method for treating metal-contaminated water and soil
A method for removing metal contaminants from water uses lignin derivatives, such as lignosulfonates and kraft lignin, a coagulant, such as a metal salt, and a pH-increasing composition. The lignin...
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7021862 |
Method for remediation of contaminated ground at oil or gas facility
The present invention is a mobile, in situ applicator system and method for remediating contaminated soils at a site without the removal of those soils. The applicator system comprises a vehicle,...
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7022241 |
Gas-gas-water treatment system for groundwater and soil remediation
A sparging system for in-situ groundwater remediation for removal of contamination including dissolved chlorinated hydrocarbons and dissolved hydrocarbon petroleum products including the use in...
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7005005 |
Soil bind and revegetation compositions and methods of making and using such compositions
Soil binding and revegetation compositions useful for stabilizing soil and promoting vegetation or revegetation of soil comprise water, an endosperm, an iron compound, a strong base, and a fibrous...
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