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| Number | Title | Issue Date |
| 7682105 | Cover system for waste sites and environmental closures A cover system is provided for waste sites and environmental closures, in which the cover system comprises a synthetic grass and an impermeable geomembrane that can be applied without the use of heavy earthwork equipment as temporary or final cover to control odors,... | 03/23/2010 |
| 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 |
| 7351004 | Aquifer replenishment system A concrete structure for replenishing an aquifer and a method for constructing the same is provided. The structure is comprised of a pavement layer with surface drains that extend through the pavement layer and into an aggregate leach field. The leach field includes... | 04/01/2008 |
| 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 |
| 7249607 | Landfill conduit servicing systems and methods for servicing landfill conduits Systems, methods, and apparatus for servicing landfill conduits are disclosed. These systems, methods, and apparatus employ structures which facilitate access to and the servicing of buried landfill conduits, for example, one or more buried landfill laterals. In one... | 07/31/2007 |
| 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 |
| 6913420 | Fluid movement apparatus Apparatus suitable for venting and dispensing gas from an area of ground. The apparatus comprising a passage arrangement locatable in the ground extending generally horizontally and formed from a plurality of self-supporting open units. One or more columns extends d... | 07/05/2005 |
| 6910829 | In situ retreival of contaminants or other substances using a barrier system and leaching solutions and components, processes and methods relating thereto Processes and methods relating to treating contaminants and collecting desired substances from a zone of interest using subterranean collection and containment barriers. Tubular casings having interlock structures are used to create subterranean barriers for contain... | 06/28/2005 |
| 6726401 | Treatment of a leach field The performance of a leach field in processing waste water is maintained or improved by a control system in which one or more selected parameter in a waste water conduit, or in the influence zone of the conduit, is measured, compared to a set point(s), and one or mo... | 04/27/2004 |
| 6719489 | Selective suspension drain closure apparatus and method of controlling flow of liquid An apparatus for controlling a flow of a liquid into a sewer drain comprising a catch basin having a catch basin drain coupled with the sewer drain. In addition, a housing element that is positioned within the catch basin, whereby the housing element is coupled with... | 04/13/2004 |
| 6688812 | Hydraulic barrier A hydraulic barrier for particular use in sealing the perimeter of landfill sites, the barrier comprising a geosynthetic clay liner, preferably containing prehydrated sodium bentonite, which geosynthetic clay liner is supported in a substantially vertical... | 02/10/2004 |
| 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 |
| 6629390 | Environmental protection and detection system An environmental protection and detection system includes a vapor and gas impervious barrier extending beneath at least part of the area of an enclosure to prevent fluids leaked or spilled within the enclosure for flowing downwardly into the underlying so... | 10/07/2003 |
| 6599058 | Landfill leachate collection apparatus A landfill (10) having a leachate collection apparatus including a layer of geonet material (40) disposed above a liner (38) as its primary leachate flow path. Leachate flows along the geonet material to a collection trench (16) located along an edge (14)... | 07/29/2003 |
| 6558077 | Selective suspension drain closure apparatus An apparatus for controlling a flow of a liquid into a sewer drain comprising a catch basin having a catch basin drain coupled with the sewer drain. In addition, a housing element that is positioned within the catch basin, whereby the housing element is c... | 05/06/2003 |
| 6543189 | Environmental protection and detection system An environmental protection and detection system includes a vapor and gas impervious barrier extending beneath at least part of the area of an enclosure to prevent fluids leaked or spilled within the enclosure for flowing downwardly into the underlying so... | 04/08/2003 |
| 6406219 | Greenhouse gas emission disposal from thermal power stations A process is provided for reducing a greenhouse gas emission component of a combustion gas from a thermal power generation plant. The thermal power generation plant is located in a coastal region adjacent the ocean. The plant is located beneath a seawater... | 06/18/2002 |
| 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 landfill gas from a landfill gas extraction pipe inserted i... | 01/01/2002 |
| 6283676 | Sequential aerobic/anaerobic solid waste landfill operation Landfills including multiple lifts having horizontal piping layers and methods for their use to accelerate anaerobic and/or aerobic degradation of municipal solid waste to increase landfill capacity.... | 09/04/2001 |
| 6152653 | Geocomposite capillary barrier drain A geotechnical structure that includes a first body of soil having a first unsaturated concentration of moisture. There is also a second body of soil, which includes a second unsaturated concentration of moisture that is different from the first concentra... | 11/28/2000 |
| 6120209 | Method of installing drainfield pipe A drainfield pipe having a rib radially extending from its wall is supported by a device which includes a pair of elongated anchor members generally parallel to each other and separated for receiving the drainfield pipe therebetween and suspending the pip... | 09/19/2000 |
| 6116815 | Process for preventing release of contamination from an underground storage tank field A system for preventing release from an underground storage tank from further migrating into surrounding geological formations and groundwater of a surrounding underground storage tank field includes a low permeable layer surrounding the tank field and a ... | 09/12/2000 |
| 6024513 | Aerobic landfill bioreactor The present invention includes a method of decomposing municipal solid waste (MSW) within a landfill by converting the landfill to aerobic degradation in the following manner: (1) injecting air via the landfill leachate collection system (2) injecting air... | 02/15/2000 |
| 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 such as waste water treatment sludges and the like, and the... | 11/16/1999 |
| 5924821 | Apparatus and method for gas and/or liquid exchange between an area outside and an area inside a bulk material pile Gas and/or liquid exchange between an area within a bulk material pile and an area outside the bulk material pile is enabled by establishing a conduit, e.g., a pipe, between the area outside the bulk material pile and the area within the bulk material pil... | 07/20/1999 |
| 5906572 | Liquid hydrocarbon sorbing and solidifying pillow A device for collection and containment of spilled or leaked liquid hydrocarbons absorbs pollutants that come in contact. The absorbed material is solidified-within the pillow into a rubber-like mass. An impermeable layer-of material may be utilized in fo... | 05/25/1999 |
| 5885026 | System and method for containing leachate using submerged counterflow sink A method and system for collecting and containing leachate from a landfill uses a submerged drainage sink to develop a flow pattern towards the drainage sink contained within a containment zone, and therefore minimizes the chance of contaminating area gro... | 03/23/1999 |
| 5863152 | Mechanical gas vent A gas vent closing device that incorporates the use of a base member that is secured to a liner disposed over a collection pit. The base member includes a vented lower grate that allows for the passage of gaseous fumes therethrough. A cap member is slidab... | 01/26/1999 |
| 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 produced by incinerated MSW. The ash is gas impermeable and se... | 01/12/1999 |
| 5775840 | Apparatus and method for removal of vapors from subsoil A methods and apparatus for preventing migration of vapors from a subsoil through the stratum which includes a chamber formed within the subsoil, a conduit having an inlet extending into the chamber, and a vacuum pump connected to the conduit for drawing ... | 07/07/1998 |
| 5716165 | Process and installation for garbage disposal The installation in accordance with the invention consists of a roof (6) and of walls (9)--consisting of plastic tarpaulins (12, 13), for example--by means of which the sanitary landfill (1) that is to be stripped and the apron area (3) of a recycling ins... | 02/10/1998 |
| 5701953 | Well head for environmental extraction wells A well head for landfills or other sites at which waste has been disposed provides an enlarged chamber at the top of a well pipe holding hose and cable terminations on the walls of the chamber positioned out of the access path of the well pipe. A cover un... | 12/30/1997 |
| 5636940 | Apparatus and method for gas and/or liquid exchange between an area outside and an area inside a bulk material pile Gas and/or liquid exchange between a first area within a bulk material pile and a second area outside the bulk material pile is enabled by creating a substantially horizontal cavity during the formation of the bulk material pile, and establishing a condui... | 06/10/1997 |
| 5605417 | Method and apparatus for improving degradation of an unsecured landfill A process for improving degradation, stabilization, detoxification and volume reduction of refuse within an unsecured landfill. The process comprises the control of ground water and extracting the ground water for use as a liquid medium to facilitate crea... | 02/25/1997 |
| 5601906 | Geosynthetic barrier to prevent wildlife access to contaminated sediments A geosynthetic barrier adapted to deny wildlife access to contaminated seents (CS), includes a geocomposite (10) formed of a top layer (14) juxtaposed on a bottom layer (12) which is adapted to be placed on the sediments. The top layer includes a geosynt... | 02/11/1997 |
| 5551807 | In-ground barrier system A hazardous waste barrier system for preventing the generally lateral, subterranean migration of certain fluid substances (including both liquid and gaseous fluids) beyond an established perimeter, while providing controlled collection of same for monitor... | 09/03/1996 |
| 5547311 | Cathodic protection, leak detection, and thermal remediation system A system for cathodically protecting a structure that is in contact with soil and for extracting vapor or liquid from the soil, comprising a porous conducting material in direct contact with the soil, a power source being connected to the structure, a tub... | 08/20/1996 |
| 5473935 | Method and device for checking and repairing waterproofing The invention calls for a pipe with perforated walls to be laid on, in or under the waterproofing, such as located on and under waste dumps, to be monitored and if necessary repaired, the monitoring and repair operations being undertaken from this pipe.... | 12/12/1995 |
| 5421672 | Means and method for hydraulically isolating unsaturated zones in soil A method and apparatus for hydraulically isolating a volume in porous unsaturated material, such as soil. Air is forced through a permeable layer of material adjacent to the volume to be hydraulically isolated. The air flow through the permeable layer cre... | 06/06/1995 |
