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8168846 |
Process and plant for converting hazardous waste containing chromium VI into non-hazardous waste
The instant invention relates to a process and plant for the transformation of dangerous wastes containing chromium six as contaminant into non dangerous wastes that can be stored without special...
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8163972 |
Zero-valent metallic treatment system and its application for removal and remediation of polychlorinated biphenyls (PCBs)
PCBs are removed from contaminated media using a treatment system including zero-valent metal particles and an organic hydrogen donating solvent. The treatment system may include a weak acid in...
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8002870 |
Agricultural compositions and methods for making and using the same
Soil amendment/foliar nutrient compositions and methods for their manufacture and use are provided. The compositions are aqueous compositions that include a carbon skeleton energy component (CSE);...
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7976241 |
Soil remediation method and composition
A method for in-situ reduction of contaminants in soil.
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7972408 |
Process and apparatus for further processing of sewage sludge and other materials to reduce pathogens and toxins
An apparatus and a method for treating a composition containing toxic materials or biosolids, wherein the apparatus has a hydraulically sealable top that can be opened to allow loading of the...
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7927039 |
Method for improving vermiculite's intake of ammonium ions, absorption material, its uses and method of removing ammonium from environment
The invention relates to a method for improving vermiculite's intake of ammonium, in which method heating of the crude vermiculite is conducted to a temperature where vermiculite's third...
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7887762 |
Pulsed ozone sparging for injecting a high volume high-concentration of ozone
An ozone gas source supplies a high pressure ozone gas mixture of an oxygen carrier gas having a high ozone gas concentration of 5-14% of ozone gas to a pulse storage tank. A programmable...
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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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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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7718843 |
Iron powder for organic chlorinated compound decomposition and detoxifying treatment method using the same
An iron powder for decomposition of organic chlorinated compounds, comprising from 0.03 to 0.5% by weight of Ni and from 0.005 to 5% by weight of carbon, wherein particles having a particle size of...
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7645606 |
In situ biodegradation of subsurface contaminants by injection of phosphate nutrients and hydrogen
The present invention provides a method and gaseous composition for the in situ bioremediation of soil and groundwater contaminated with organic compounds, including halogenated hydrocarbons. The...
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7547160 |
Method of delivering a treatment substance to a target substance in a treatment zone
A method of delivering a treatment substance to a target substance in a treatment zone is disclosed. The method comprises providing a treatment substance responsive to an electric or magnetic field...
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7547388 |
Superoxidant poiser for groundwater and soil treatment with in-situ oxidation-reduction and acidity-basicity adjustment
Equipment and process by which an operator can set (or program) a time sequence of coatings of oxygen with increasing oxidation potential for in-situ treatment (chemical reaction) of organic...
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7468469 |
Dissolved oxygen releasing compound
A dissolved oxygen releasing blend is disclosed utilizing magnesium peroxide blended with powdered Bentonite and/or vegetable oil. The Bentonite (or other clay material) reduces the hydraulic...
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7455477 |
Compound, method for stabilizing shwertmannite, method for clarifying polluted water or polluted soil, and method for adsorbing phosphoric acid
A new compound represented by a composition formula Fe8O8 (OH)8-2x((SO4)a, (HPO4)b)x (a+b=x, 1≦x≦1.75, 0
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7442305 |
Downwash process bioremediation system
Disclosed herein is a method for the removal of petroleum hydrocarbon and toxic constitutes from contaminated soils and sediment. The method comprises the removal of contaminated materials from...
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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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7312184 |
Recovery composition and method
A method and composition are described for improving recovery of oil from an oil reservoir. The method includes adding an effective amount of a fatty acid alkyl ester oil recovery composition to an...
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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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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...
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7273962 |
Compositions and methods for removing heavy metals from contaminated samples using membranes provided with purified metallothionein (MT) proteins
Devices, such as solid supports having metal binding proteins, such as metallothionein proteins, bound thereto are disclosed for removing metals from substrates in need of having such metals...
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7271199 |
Removal of PCB and other halogenated organic contaminants found in ex situ structures
Emulsified systems of a surfactant-stabilized, biodegradable water-in-solvent emulsion with bimetallic particles contained with the emulsion droplets are useful at removing PCBs from ex situ...
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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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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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7252986 |
Process for the biodegradation of hydrocarbons and ethers in subsurface soil by introduction of a solid oxygen source by hydraulic fracturing
A bioremediation of subsurface soil formations contaminated with hazardous wastes is achieved by hydraulic fracturing of the subsurface soil formation with simultaneous introduction of sodium...
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7213642 |
Multi-fluid sparging
A diffuser useful for sparging to remove contaminant in situ is described. The diffuser includes a first elongated member having a sidewall with a first portion of the length of the sidewall being...
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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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7166228 |
Method of treating a subsurface formation with ferrous iron to reduce contaminants to harmless species
A method for treating a subsurface formation with a ferrous compound, to reduce a contaminant therein, involves introducing into the subsurface formation a ferrous compound in combination with...
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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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7135605 |
Metal binding proteins and associated methods
Metal binding proteins, associated compositions and methods for their production and use are disclosed. The metal binding proteins include have amino acid sequences analogous to at least one metal...
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7128153 |
Treatment of a hydrocarbon containing formation after heating
A method for treating a hydrocarbon containing formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to...
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7128841 |
Dispersed zero-valent iron colloids
Stable dispersions of zero-valent iron particles are produced by milling of micro- and nano-scale iron particles (colloids) in the presence of a dispersant or dispersants.
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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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7030287 |
Method of decreasing nitrate nitrogen and volatile organic compound in soil and groundwater
A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an...
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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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7029588 |
Oxidizing solution and process for contaminants
My invention provides an oxidizing solution and process for the in situ oxidation of contaminants, including hydrocarbon, organic, bacterial, phosphonic acid, and other contaminants, the...
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7021864 |
Soil binding 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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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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7011756 |
In situ immobilization of metals within density variant bodies of water
A method for treating (in situ) large bodies of water contaminated with heavy metals and having varying density stratas to immobilize the contaminant metals is disclosed. The method, or process for...
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7008964 |
Contaminant removal from natural resources
A zero-valent metal emulsion containing zero-valent metal particles is used to remediate contaminated natural resources, such as groundwater and soil. In a preferred embodiment, the zero-valent...
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6949197 |
Situ neutralization of subsurface acidic pore water
A method for neutralizing in situ pore water associated with a subsurface waste material body, the pore water having a pH of less than 2, the method includes the steps of adding a non-carbonate...
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6948881 |
Remediation injection vessel for marshes, tidal flats, and wetlands
An injection vessel for injecting liquid amendment into contaminated subsurface sediment in ecologically sensitive areas such as shallow water salt marshes, tidal flats, or fresh water wetlands is...
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6923596 |
Method for the remediation of contaminated soil and/or groundwater via integrated chemical and biological treatment
The invention provides repeated sequential stages of chemical and biological treatment to meet soil and/or groundwater treatment goals. Chemical treatment is undertaken to directly destroy a...
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6921477 |
Groundwater treatment system and method
A groundwater treatment system, which includes subterranean inlet, treatment, and outlet portions. The inlet portion is configured to collect groundwater from an aquifer. The treatment portion...
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6911570 |
Method for fixating sludges and soils contaminated with mercury and other heavy metals
The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the...
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6905288 |
Method of remedying contaminated soil by microorganism
The present invention is a method of remedying contaminated soil comprises: providing microorganisms capable of degrading soil contaminants to contaminated soil, in which the microorganisms is...
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6881008 |
Particle binding compositions and methods of making and using such compositions
Particle binding compositions useful for stabilizing soil and other particles comprise water, an endosperm, an iron compound, a strong base, and a pH adjustor. The endosperm comprises the...
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6843618 |
In situ subsurface decontamination method
A method of decontaminating soil and ground water containing organic contaminants and divalent metal compounds. It comprises the steps of first treating such soils and ground water with an...
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6843617 |
Stabilization of toxic metals in a waste matrix and pore water
A method is provided for stabilizing toxic materials in a waste matrix and in the pore water of the waste matrix. The method includes the steps of combining with the waste matrix (and pore water)...
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6830695 |
In situ remediation process using divalent metal cations
An in situ process for treating ambient solid materials (e.g., soils, aquifer solids, sludges) by adding one or more divalent metal cations to the ambient solid material. The added divalent metal...
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