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| Number | Title | Issue Date |
| 8047743 | Geomorphology for environmental remediation process and systems The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a ... | 11/01/2011 |
| 7887259 | Geomorphology for environmental remediation processes and systems including sediment survey The present invention uses one or more sediment survey techniques to map the sediment of a water course in three dimensions. The sediment survey techniques result in sediment definition that may be used to identify zones of sediment (whether areas or volumes) that a... | 02/15/2011 |
| 7824129 | Low-impact delivery system for in situ treatment of contaminated sediment An agglomerate for use in economical bulk treatment of contaminated sediments with minimal environmental impact is formed from a sorbent, bentonite clay and sand. The agglomerate has sufficient density so as to sink through a water column into sediment below the wat... | 11/02/2010 |
| 7785038 | Oxidation of organic compounds An improved method and compositions for treating organic compounds present in soil, groundwater and other environments is disclosed. The method involves the use of a composition comprising a solid state, water soluble peroxygen compound and zero valent iron. ... | 08/31/2010 |
| 7758283 | Geomorphology for environmental remediation process and systems The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a ... | 07/20/2010 |
| 7708496 | In-situ surfactant and chemical oxidant flushing for complete remediation of contaminants and methods of using same The present invention relates to the removal of subsurface contaminants and methods of using same. In more particular, but not by way of limitation, the present invention relates to an integrated method for remediating subsurface contaminants through the use of a lo... | 05/04/2010 |
| 7704014 | Process for removing contaminants from contaminated soil The invention relates to a process for removing contaminants from contaminated soil with the aid of a stripping gas. In the process a biologically active layer is present in or on the soil. The process comprises the following steps: a) there is created in the soil a... | 04/27/2010 |
| 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 duration; b) interrupting the injection of ozone into the solid matrix... | 09/23/2008 |
| 7413383 | Chemical-biological stabilization process for repairing soils and cuttings contaminated with oils and petroleum derivatives The present invention describes a process utilized for the remediation of soils and petroleum drilling wastes contaminated with hydrocarbons, which consists in stabilization by application and mixing in specific proportions of calcium oxides and organic conditioners... | 08/19/2008 |
| 7402132 | Treating hazardous materials Methods of treating hazardous materials, such as, for example, contaminated soils, are disclosed. In one aspect, a method may include treating a contaminated soil with a hazardous material treatment composition to form a resulting material. In one aspect, the hazard... | 07/22/2008 |
| 7322152 | Method and apparatus for converting spent water-based drilling muds into fertile indigenous top soil A method and apparatus for converting spent water-based drilling mud into fertile indigenous top soil at a well site or location. The fertile indigenous top soil is produced by the steps of: admixing, at a well site, effective amounts of spent water-based drilling m... | 01/29/2008 |
| 7300227 | Recovery of non-aqueous phase liquids from ground sources The invention disclosed relates to a method and apparatus for recovering non-aqueous phase liquids (NAPL) from regions below ground where NAPL spills are sources of aquifer contamination. The apparatus includes a system to supply gas-supersaturated liquid, a system ... | 11/27/2007 |
| 7273552 | Bioremediation Bioremediatory fungi, such as Trichoderma harzianum, which have been found to catabolise cyanide, are capable of detoxifying contaminated environmental areas in association with a suitable rhizosphere. ... | 09/25/2007 |
| 7272912 | Method and apparatus for converting spent water-based drilling muds into fertile indigenous top soil A method and apparatus for converting spent water-based drilling mud into fertile indigenous top soil at a well site or location. The fertile indigenous top soil is produced by the steps of: admixing, at a well site, effective amou... | 09/25/2007 |
| 7264713 | Apparatus, system and method for remediation of contamination An apparatus, system and method for removing and treating contaminated materials on a bottom of a body of water and introducing growth packets to revitalize the treated bottom of the body of water. The structure may comprise a vessel with an open face. The vessel ma... | 09/04/2007 |
| 7156581 | Dynamic remediation of soil and groundwater A method and system for improved environmental remediation. A method comprising establishing an initial remediation protocol; applying at least one initial motive force according to the initial remediation protocol; monitoring the effect on the site resulting from t... | 01/02/2007 |
| 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. ... | 10/31/2006 |
| 7101115 | stabilization of persistent hydrophobic organic contaminants in sediments using coal- and wood-derived carbon sorbents To overcome obstacles faced by current remediation technologies for contaminated sediments, the present invention provides a new strategy based on in situ control of hydrophobic organic contaminants (HOC) bioavailability. The strategy employs the addition of activat... | 09/05/2006 |
| 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 step. The bioremediation step includes contacting the contaminate with a ... | 06/06/2006 |
| 7056060 | Apparatus and method for remediation of low permeability formations An apparatus and method for treating contaminated groundwater in low permeability ground formations is provided having a groundwater intake region at the bottom of the well and a groundwater expulsion region above the bottom of the well and a means for moving the wa... | 06/06/2006 |
| 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, preferably a chemical treatment vehicle used in the oil and gas indust... | 04/04/2006 |
| 7001105 | Method of in situ blending of soil to reduce concentration of toxic residue in the soil An in situ method of reducing concentrations of contaminates in contaminated soil, where contaminated soil positioned in a first horizontal location is in situ mixed with clean soil in vertical proximity to the contaminated soil. The mixed soil is blended under cond... | 02/21/2006 |
| 6974278 | Thermo-structural base for construction on unstable soils In this invention, after the grade at a construction site has been excavated and/or graded to its preliminary rough grade, re-enforcing material, typically synthetic in nature, such as nylon or polypropylene mesh or rods, fiber-glass rods or mesh, or other specified... | 12/13/2005 |
| 6939085 | Soil aerating machine A soil aerating machine includes in combination a skid-steer and a basket resembling a loader bucket adapted for attachment to the skid-steer boom. An air pressure tank, an elongate air nozzle pipe, an air hammer, and air control valves for the air nozzle pipe and a... | 09/06/2005 |
| 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 particulate material. The method generally involves the application of a metal ... | 06/28/2005 |
| 6908559 | Process for treating a solid-liquid mixture A process for treating a solid-liquid mixture by cavitation to decompose at least some contaminant associated with the solid particles, the contaminant either being absorbed into the pores of the solid or onto the surface of the solid particles. The process includes... | 06/21/2005 |
| 6860679 | Adsorbent particles preparation method and treatment of soils polluted by hydrocarbons using said particles The present invention relates to a method of preparing adsorbent particles formed from expanded plastics materials, said particles comprising cellular structures that are open at their surface, characterized in that a material constituted by agglomerated beads of sa... | 03/01/2005 |
| 6802805 | Method for recombining soil A method for recombining and then solidifying groups of soil particles by utilizing changes in the status and properties of soil particles which comprises a combination (in an adhering state) between soil particles and groups polymers (humin) in an aqueous solution ... | 10/12/2004 |
| 6746180 | 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 chemical oxidation step and a bioremediation step. The chemical oxidation step includes treating the contaminate with the foll... | 06/08/2004 |
| 6729801 | System and method for detecting contamination using vegetation sampling A method for performing exploration of the vadose soil zone first obtains samples of the surface vegetation from a region, next the samples are analyzed to determine if a contaminant is present in any of the analyzed samples, and, finally, a determination is made if... | 05/04/2004 |
| 6623211 | Remediation of contaminates including low bioavailability hydrocarbons A method of treatment of a contaminated material contaminated with an organic compound is provided. The method includes treating the contaminate with a chemical oxidation step. The chemical oxidation step includes treating the contaminate with a transitio... | 09/23/2003 |
| 6569342 | Process for treating waters, soils, sediments and/or silts A method is providing for treating waters, such as standing and flowing waters and waste waters, soils, sediments and/or silts. At least one alkaline earth metal peroxide is brought into contact with such waters or the like, especially to effect immobiliz... | 05/27/2003 |
| 6565724 | System and method for electrochemical stabilization of soil and the strengthened soil structure resulting from the above method A plurality of rows of wells are drilled in the soil of the area to be stabilized, and then pairs of electrodes, i.e., an aluminum anode and a copper-graphite cathode connected to a source of a bipolar pulse current, are inserted into each well in such a ... | 05/20/2003 |
| 6546341 | Technique for rapid prediction of long-term hydrophobic organic contaminant desorption rates A laboratory technique for rapidly predicting the long-term hydrophobic organic contaminant (HOC) desorption behavior in a contaminated soil or sediment useful for planning remediation schemes and/or assessing alternative remediation endpoint decisions em... | 04/08/2003 |
| 6517287 | Method for removing contaminants from dredge material in an underwater environment A method of removing contaminated sediment material from a contaminated area on the ocean floor using a reactor vessel wherein seawater is from within the interior of the reactor vessel so that the vessel penetrates the ocean floor. A pressurized fluid is... | 02/11/2003 |
| 6435769 | Gas-phase modification in earth materials A process for treating earth materials such as rock heaps to prevent acid rock drainage therefrom is disclosed. First, the oxygen concentration in the gas-phase of the rock heap is decreased, that is, displaced and/or depleted. This first step may be acco... | 08/20/2002 |
| 6413017 | Conversion of hydrocarbon-contaminated particulate soil and/or rock to fertile soil useful in erosion control A mixture of hydrocarbons with particulate rock and/or soil that is incapable of sustaining growth of erosion retarding plants can be converted to soil that is capable of sustaining such plant growth by blending the mixture with particulate biomass, and/o... | 07/02/2002 |
| 6398841 | Ecological method of phyto-remediation of alkaline and chemically degraded soils using scented geranium (Pelargonium sp.) The present invention provides a novel ecological method of phyto-remediation of alkaline ad chemically degraded soils, said method comprising the steps of dispersing biomass obtained from Pelargonium sp. in alkaline or chemically degraded soil.... | 06/04/2002 |
| 6386796 | Composite particles and methods for their application and implementation A method of treating a contaminated material in which a low-permeability barrier is formed over the contaminated material, thereby creating a substantially hydraulically closed system. The material beneath the barrier is treated by at least one of deliver... | 05/14/2002 |
| 6357968 | Method and apparatus for constructing an underground barrier wall structure A method and apparatus for constructing a underground barrier wall structure using a jet grout injector subassembly comprising a pair of primary nozzles and a plurality of secondary nozzles, the secondary nozzles having a smaller diameter than the primary... | 03/19/2002 |
