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| Number | Title | Issue Date |
| 8052349 | Structures and method for covering landfill A modular roof like enclosed structure has attachments suitable for handling by lifting machinery to be placed on a landfill site and a perimeter strip extension which abuts or overlaps an adjoining module on the site. The modular structure is vented to allow ventil... | 11/08/2011 |
| 7972082 | Collection of landfill gas at variable rates to match temporal needs for energy generation The invention involves a method of collecting biogas from a landfill with a variable rate of collection varied to match periods of greatest need for energy and greatest economic value of energy during a day. The variable collection rate is made possible by a landfil... | 07/05/2011 |
| 7959376 | Methods of reducing greenhouse gases in landfills and coal mines A method of reducing greenhouse gases while simultaneously generating carbon credits includes mitigating greenhouse gases at unregulated landfill sites or mitigating greenhouse gases at regulated landfill sites in excess of the required mitigation activities, obtain... | 06/14/2011 |
| 7866921 | Tool and method for extracting landfill gas An apparatus and method to internally provide apertures inside PVC, HDPE, or plastic pipe-riser (blank casing) in existing methane gas recovery wells (extraction wells) that have been installed at Municipal Solid Waste Facilities are described. Apertures in methane ... | 01/11/2011 |
| 7726908 | Solid waste treatment process This invention involves a Municipal Solid Waste (MSW) treatment processing technology. The process entails a type of MSW landfill treatment process. This invention features the following steps. Firstly: MSW separation. Second: organic trash landfill. Third: the recy... | 06/01/2010 |
| 7699563 | Landfill and method of decomposing refuse in a landfill Landfills and their methods of operation are disclosed. Through the controlled introduction of septage into a wet cell having a refuse layer, refuse decomposes faster to achieve additional landfill space. ... | 04/20/2010 |
| 7628567 | Fluid distribution and collection in landfills and contaminated sites A fluid injection and removal system to inject or remove fluids from a landfill or contaminated area. The system allows for treatment of waste in the landfill or the contaminated area. The fluid injection and removal system includes a permeable layer and at least on... | 12/08/2009 |
| 7537415 | Fluid distribution and collection in landfills and contaminated sites A fluid injection and removal system to inject or remove fluids from a landfill or contaminated area. The system allows for treatment of waste in the landfill or the contaminated area. The fluid injection and removal system includes a permeable layer and at least on... | 05/26/2009 |
| 7448828 | Landfill design and method for improved landfill gas capture The invention provides an improved method of collecting biogas from a landfill that results in more complete collection of biogas produced in the landfill, and with less contamination with air. The method involves providing the landfill with an upper gas containment... | 11/11/2008 |
| 7422393 | Aerobic and anaerobic waste management systems and methods for landfills Embodiments of the invention provide systems and methods for creating, managing and staging aerobic and/or anaerobic landfills. Embodiments of the invention provide systems and methods for collecting liquids from and recirculating liquids into landfills and systems ... | 09/09/2008 |
| 7357601 | Adaptive coupling and method An adaptive coupling and method for joining a conduit to a barrier sheet through which the conduit passes are disclosed. The barrier sheet is movable axially relative to the conduit. A tubular member and an extensible boot are configured to allow passage of a portio... | 04/15/2008 |
| 7347648 | Landfills and methods of operating a landfill Landfills and their methods of operation are disclosed. Through the controlled introduction of septage into solid municipal waste, refuse decomposes faster to achieve additional landfill space. A business method of operating the landfill is also disclosed. ... | 03/25/2008 |
| 7309188 | Drainable base course for a landfill and method of forming the same Numerous embodiments of one or more layers of void-maintaining synthetic drainable base courses (“VMSDBC's”) are provided as incorporated into landfills and other waste containment facilities. ... | 12/18/2007 |
| 7309189 | Fluid distribution and collection in landfills and contaminated sites A fluid injection and removal system to inject or remove fluids from a landfill or contaminated area. The system allows for treatment of waste in the landfill or the contaminated area. The fluid injection and removal system includes a permeable layer and at least on... | 12/18/2007 |
| 7288581 | Process for the stabilization of dusting surfaces The invention relates to a process for the stabilization of dusting surfaces characterized in that the dusty ground is tilled or scarified and mixed with polymers in form of water-redispersible polymer powders, which are optionally reemulsifiably modified, or reemul... | 10/30/2007 |
| 7284930 | Composition and method for forming a sprayable materials cover An alternative cover for landfill may be formed from a slurry mixture of water, cementitious binder, adhesion enhancing admixture and fiber. These constituents may be mixed and applied to cover landfilled wastes, granular material piles or for soil erosion control. ... | 10/23/2007 |
| 7198433 | Landfill design and method for improved landfill gas capture The invention provides an improved method of collecting biogas from a landfill that results in more complete collection of biogas produced in the landfill, and with less contamination with air. The method involves providing the landfill with an upper gas containment... | 04/03/2007 |
| 7168888 | Aerobic and anaerobic waste management systems and methods for landfills The invention provides systems and methods for creating, managing and staging aerobic and/or anaerobic landfills. The invention provides systems and methods for collecting liquids from and recirculating liquids into landfills and systems and methods for collecting g... | 01/30/2007 |
| 7144725 | Removal of toxic/hazardous chemicals absorbed in building materials A method of removing pollutants from porous, solid materials uses a biomass loaded onto a support. The biomass is put into contact with a pollutant contaminated porous, solid material so that the bacterial biomass degrades the pollutant. The moisture level of the su... | 12/05/2006 |
| 7140805 | Method of treating municipal solid waste One aspect of the present invention relates to a method of treating municipal solid waste which includes landfilling a volume of solid waste, a substantial portion of which has been exposed to the atmosphere, adding moisture to the solid waste, compacting the moiste... | 11/28/2006 |
| 7128150 | Acid gas disposal method This invention is method of recovering gas from a gas-bearing subterranean formation in which gas is produced from an upper portion of the formation and a waste gas is injected into a lower portion of the formation to dispose of the waste gas. The waste gas is injec... | 10/31/2006 |
| 7118308 | Multi-planar gas recovery bioreactor A bioreactor including one or more features that improve bioreactor liquid infiltration and gas recovery and having a central core including liquid infiltration piping, a porous gas recovery material including at least one gas collection pipe, and a berm separating ... | 10/10/2006 |
| 7077602 | Method and system for containment, such as a containment cap for solid waste constructed of modified asphalt The present invention is directed to a waste or environmental containment system that includes modified asphalt specifically designed for containment, and a system of installation that provides a seamless cap over the area to be contained. The modified asphalt of th... | 07/18/2006 |
| 7017277 | Vacuum treatment of an input stream without ruining delicate output fractions A method of separating the membrane and mineral fractions from an input stream of broken empty egg shells comprises a vacuum treatment to promote the membrane fraction to “eject” or detach from the attached or adhered scraps of mineral, ie., mineral shards or po... | 03/28/2006 |
| 6994491 | Gas recovery from landfills using aqueous foam Hydrogen sulfide in a landfill is reduced by dispersing a hydrogen sulfide control agent, such as an iron compound, into the landfill. The hydrogen sulfide control agent may be a component of an injected foam. Gas is also recovered from the landfill by introducing w... | 02/07/2006 |
| 6929423 | Gas recovery from landfills using aqueous foam Gas is recovered from a landfill by introducing water into the landfill to promote digestion of organic matter in the landfill, and removing from the landfill gas produced by digestion. The improvement comprises the introduction of water as part of an aqueous foam, ... | 08/16/2005 |
| 6916136 | Aerobic bioreduction of municipal solid waste landfill mass A process for converting municipal solid waste landfills to aerobic conditions that will allow for a highly accelerated and enhanced bioreduction of landfill mass, followed by the optional excavation of the landfill cell materials subsequent to the bioreduction proc... | 07/12/2005 |
| 6860680 | Waste containment and processing facilities formed contemporaneously with the disposal of mineral refuse, and related methods The invention pertains to means and methods for enabling the further use of previously negative assets, and particularly from those facilities formed from gypsum waste, such as that suitable for forming gypsum stacks. Waste containment or landfill facilities are for... | 03/01/2005 |
| 6749368 | Design, monitoring and control of soil carburetors for degradation of volatile compounds An apparatus and method for controlling and/or monitoring volatile compounds such as those buried underground. A cover or cover layer is placed over the source of the volatile compounds in the ground. The cover is intentionally made to be relatively gas permeable, t... | 06/15/2004 |
| 6742962 | Infiltration and gas recovery systems for landfill bioreactors A trench located in a landfill including the combination of a liquid infiltration piping system and a horizontal gas withdrawal piping system, the combination allowing for simultaneous liquid infiltration and gas withdrawal from a landfill. ... | 06/01/2004 |
| 6648551 | Method for stabilizing and reducing permeability of geologic or waste materials Methods for inducing the precipitation of substantially water insoluble mineral carbonates in pores, spaces and fractures by conveying a carbon-dioxide (ie. CO2) bearing gaseous phase or an oxidised-carbon-bearing aqueous phase into spaces wher... | 11/18/2003 |
| 6644890 | Treatment of oxidable gas generated from waste at a dumping area A method for treating oxidable gas generated from waste at a dumping area and to the structure of the dumping area. The dumping area has an organic waste layer covered with a sealing layer that prevents the absorption of water, with a drying layer and a s... | 11/11/2003 |
| 6606836 | Flexible liner for a concrete container The present invention is method and resulting assembly for applying a flexible liner to the outer surface of a pre-cast concrete walled container to be buried in an earthen excavation.... | 08/19/2003 |
| 6595723 | Conversion of gypsum stacks to waste containment facilities and related construction and business methods The invention pertains to the conversion of waste materials derived from gypsum mining and processing, such as existing gypsum stacks, into waste containment or landfill facilities. Methods of the invention include the creation of waste containment facili... | 07/22/2003 |
| 6558079 | Method and apparatus for covering landfill A method and apparatus is used for covering the exposed workface of a landfill with a film. The apparatus includes a compactor rotatably mounted on a frame which is hitched to a tractor. A film, spray and ballast deployer is mounted on the end of the fram... | 05/06/2003 |
| 6505681 | Rehabilitation of landfill gas recovery wells Gaseous and liquid carbon dioxide (CO2) are applied to a landfill well to penetrate the landfill under rapid pressurization and depressurization repeated in cycles, with or without leachate or fluid in the well. These cycles can be repeated unt... | 01/14/2003 |
| 6481929 | Aerobic bioreduction of municipal solid waste landfill mass A process for converting municipal solid waste landfills to aerobic conditions that will allow for a highly accelerated and enhanced bioreduction of landfill mass, followed by the optional excavation of the landfill cell materials subsequent to the biored... | 11/19/2002 |
| 6471443 | Method and apparatus for injecting steam into landfills A method of injecting steam into a landfill is provided. The steam enhances methane gas production in the landfill during the anaerobic phase, accelerates decomposition/biodegradation of the organic component of the trash prism during both the aerobic and... | 10/29/2002 |
| 6435770 | Method of forming a synthetic cap on a bulk material pile A synthetic cover for bulk material piles and loads in transit may be formed from a slurry mixture of liquid and powder made from recycled gypsum wallboard. These constituents may be mixed and applied to cover a bulk material pile and/or waste pile, and/o... | 08/20/2002 |
| 6432693 | Advanced inorganic solid-chemical composition and methods for anaerobic bioremediation The present invention discloses the formulation and use of an advanced inorganic solid-media chemical composition designed and intended to enhance the removal of a broad range of contaminants in the environment by provided an improved means of promoting t... | 08/13/2002 |
