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8163242 |
Portable gas monitor
A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communication wirelessly with one another....
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8100605 |
Zeolite composite materials for waste odor control
A composite material for environmental odor control is useful in controlling odors from waste, for example, as an alternative daily cover for landfills and in composting applications. The composite...
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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...
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8029616 |
Bulk material cover composition
A cover composition that can be applied to a bulk material pile, such as landfill refuse, to protect the pile from wind, precipitation, and access by animals and insects is provided. The cover...
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8002050 |
Completion technique and treatment of drilled solids
An onshore oil or gas well is completed with a coiled tubing unit. A completion liquid is circulated through coiled tubing and thereby removing solids from the well. The completion liquid and...
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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...
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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...
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7955419 |
System and method for treating landfill gas using landfill leachate
Embodiments of the present invention are directed to systems and methods for treating landfill gas using landfill leachate. In one embodiment of the present invention, a method includes receiving...
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7956101 |
Anaerobically compostable polymeric compositions, articles and landfill biodegradation
Compostable hydrocarbon polymers, composites, and articles anaerobically biodegrade in landfills in a relatively short time. Composite polymeric articles and sheets such as indoor or outdoor signs,...
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7934544 |
Method and apparatus for on-site nitrate production for a water processing system
An electric plasma arc apparatus and method produces nitrogen compounds, solely using ambient air extracted in proximity to the apparatus. The nitrogen compounds are brought into contact with a...
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7902271 |
Compostable vinyl halide polymer compositions, composites and landfill biodegradation
Compositions of vinyl halide polymers such as PVC are rendered compostable by a prodegradant system of a monomeric adduct of an organotitanate or zirconate and an organotin. PVC sheets and...
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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...
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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....
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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...
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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...
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7498163 |
Process for reducing solid waste volume and landfill mass
The present invention is related to a process for reducing solid waste volume and landfill mass. More particularly, the process of the present invention is directed to reducing organic waste with...
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7470094 |
Geonet for a geocomposite
A geocomposite for use in a landfill, including a geonet and a geotextile bonded to at least one side of the geonet. The geonet includes a first plurality of substantially parallel strands, and a...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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.
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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...
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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,...
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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...
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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...
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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...
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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...
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6364572 |
Aerobic landfill bioreactor
The present invention includes a system of decomposing municipal solid waste (MSW) within a landfill by converting the landfill to aerobic degradation in the following manner: (1) injecting air via...
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6338386 |
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...
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6334737 |
Method and apparatus of controlling landfill gas generation within landfill
Disclosed herein is a method of controlling the landfill gas generation within the landfill in which leachate is recycled to be continuously injected into a deposit of wastes while extracting the...
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6290637 |
Phosphate mineral-based reactive barrier containment system
A phosphate mineral based reactive barrier system. Phosphate minerals are known to be sinks for heavy metal contaminants. The reactive barrier prevents the release of contaminants from waste...
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6039504 |
Process and apparatus for the treatment of waste
A waste processing system transports waste by rail to a processing location near a landfill site where it is pulverized and mixed to form a slurry. This slurry is delivered to the landfill with an...
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5984580 |
Landfill bioreactor
Disclosed is a method of producing a landfill and the landfill produced thereby wherein waste to be landfilled is comminuted to yield homogeneously-sized waste particles, mixed with liquid wastes...
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5915881 |
Method and composition of a clay slurry capping system for landfill and mineral waste areas
A method and composition are shown for capping exposed land areas, such as landfills, toxic waste sites, and mineral waste sites areas. A formulation is prepared by making a hydrated solution of a...
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5857807 |
Municipal solid waste landfill system
A municipal solid waste (MSW) landfill system includes a leachate collection system installed in a layer of MSW in a preexisting landfill. The layer of MSW is covered with a layer of waste ash...
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5855664 |
Solid waste landfill cover material and method of extending the useful life of a solid waste disposal landfill
A method of manufacturing Construction and Demolition ("C&D") disposal debris into a substitute/alternative daily/initial cover product approved by an environmental regulatory authority for use at...
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5846024 |
Landfill system and method for constructing a landfill system
A landfill system having a waste pit with a base portion. The base portion is covered with a liquid impermeable sheet and there is disposed at least one filtration zone below the base portion....
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5727903 |
Process and apparatus for purification and compression of raw landfill gas for vehicle fuel
A process and apparatus for purification and compression of raw landfill gas stream in a landfill to produce vehicle grade fuel. After the landfill gas stream is extracted and collected, all solids...
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