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| Number | Title | Issue Date |
| 7430834 | Membrane-covered reservoir having a hatchway therein The membrane cover has fold lines therein intersecting the walls of the reservoir at intersection points. A geometric chord or secant joins two intersection points, and defines, with a portion of the walls of the reservoir, a static segment in the membrane cover. Th... | 10/07/2008 |
| 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 |
| 7287934 | Stratum disposal monitoring system In monitoring a stratum disposal field for wastes, running tubes installed in the vicinity of a gallery or disposal holes, in a nearby rock bed, or within a gallery support or buffer members in the disposal holes have installed therein a movable monitoring device pr... | 10/30/2007 |
| 7234895 | Methods for indication of at least one subsurface barrier characteristic and methods of use A containment system for use adjacent to a selected region of a subterranean formation and comprising a plurality of laterally interlocked casing strings. At least one electrically conductive element is disposed along at least a portion of a casing string and is use... | 06/26/2007 |
| 7187299 | Systems and methods for measuring a parameter of a landfill including a barrier cap and wireless sensor systems and methods A method of measuring a parameter of a landfill including a cap, without passing wires through the cap, includes burying a sensor apparatus in the landfill prior to closing the landfill with the cap; providing a reader capable of communicating with the sensor appara... | 03/06/2007 |
| 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 |
| 7114880 | Process for the excavation of buried waste Disclosed is a method of excavating large quantities of non-homogenous radioactive contaminated waste, desirably without releasing radioactive contaminated dust or exposing personnel to its hazards. The excavation of buried waste is performed in the presence of a su... | 10/03/2006 |
| 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 |
| 7056062 | Subterranean waste disposal process and system A method for using large chambers, located deep within the earth, for the disposal of processed waste is disclosed. In this context, waste includes solid waste from sewage, and other organic-waste materials from urban, agricultural or industrial sources. These waste... | 06/06/2006 |
| 7056063 | Apparatus for indication of at least one subsurface barrier characteristic A containment system for use adjacent to a selected region of a subterranean formation and comprising a plurality of laterally interlocked casing strings. At least one electrically conductive element is disposed along at least a portion of a casing string and is use... | 06/06/2006 |
| 7029203 | Subsurface materials management and containment system, components thereof and methods relating thereto Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create... | 04/18/2006 |
| 6971820 | Microblower assisted barometric valve A gas exchange apparatus is provided which provides for both passive fluid flow and blower associated fluid flow through a barometric valve. A battery powered blower is provided which allows for operation of the barometric valve during times when the barometric valv... | 12/06/2005 |
| 6948882 | Sensor system for buried waste containment sites A sensor system for a buried waste containment site having a bottom wall barrier and/or sidewall barriers, for containing hazardous waste. The sensor system includes one or more sensor devices disposed in one or more of the barriers for detecting a physical paramete... | 09/27/2005 |
| 6896446 | Advanced containment system An advanced containment system for containing buried waste and associated leachate. A trench is dug on either side of the zone of interest containing the buried waste so as to accommodate a micro tunnel boring machine. A series of small diameter tunnels are serially... | 05/24/2005 |
| 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 |
| 6802670 | Advanced containment system An advanced containment system for containing buried waste and associated leachate. A trench is dug on either side of the zone of interest containing the buried waste so as to accommodate a micro tunnel boring machine. A series of small diameter tunnels are serially... | 10/12/2004 |
| 6796746 | Subterranean drilling and in situ treatment of wastes using a contamination control system and methods relating thereto Systems and methods relating to subterranean drilling while maintaining containment of any contaminants released during the drilling. A thrust block installed over a zone of interest provides an overflow space for retaining any contaminants and excess sealant return... | 09/28/2004 |
| 6766620 | Building levelling system A building levelling system is provided for a building having a basement or foundation supported on expansive soil. A water management system is included for maintaining water in the expansive soil at a level adjacent the foundation to saturate the soil with water a... | 07/27/2004 |
| 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 |
| 6648552 | Sensor system for buried waste containment sites A sensor system for a buried waste containment site having a bottom wall barrier and sidewall barriers, for containing hazardous waste. The sensor system includes one or more sensor devices disposed in one or more of the barriers for detecting a physical ... | 11/18/2003 |
| 6575663 | Advanced containment system A containment system to isolate waste in the ground including parallel interlocking tubes.... | 06/10/2003 |
| 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 |
| 6338596 | Waste collection device A waste collection device which comprises, inside a pit, a plate for supporting at least one container; the plate is provided with supports adapted to limit its downward motion to a minimum elevation which allows the container to lie fully within the pit;... | 01/15/2002 |
| 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 fluid in the well. These cycles can be repeated unt... | 01/15/2002 |
| 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 |
| 6281801 | System and method for monitoring water content or other dielectric influences in a medium A sensor system is provided that measures water content or other detectable properties in a medium along the entire length of the sensor at any point in time. The sensor system includes an electromagnetic signal generator and a transmission line disposed ... | 08/28/2001 |
| 6102617 | Impoundment leak detection, location, and containment system and method with mobile sensor An impoundment leak detection, location, and containment system includes a leak detection and location structure positioned below the impoundment with a system of conduit spanning substantially all of the extent under the impoundment. A mobile sensor syst... | 08/15/2000 |
| 6056477 | Waste disposal site A waste disposal site according to the present invention is provided with water-impermeable properties by water-impermeable materials covering a bottom surface and a sloped side surface of the waste disposal site. The waste disposal site is provided with ... | 05/02/2000 |
| 6035701 | Method and system to locate leaks in subsurface containment structures using tracer gases The present invention integrates an inverse modeling technique and a field measurement system. The system uses inexpensive and non-hazardous gaseous tracers injected inside the contained volume of a barrier to quantify the location and size of any leaks i... | 03/14/2000 |
| 6004070 | Waste storage containment cell, method of operating, and apparatus therefore A new covered landfill or remediated waste containment cell having an excavated bottom surface, lined with a watertight liner and a leak detection system for determining whether or not leakage has occurred, either from the top, or from the bottom. The cov... | 12/21/1999 |
| 5905184 | In situ construction of containment vault under a radioactive or hazardous waste site A method is disclosed for constructing, verifying, and maintaining underground vaults that isolate and contain radioactive burial sites. The method employs a buoyant lift technique to isolate a block of soil containing the contaminates from the surroundin... | 05/18/1999 |
| 5890840 | In situ construction of containment vault under a radioactive or hazardous waste site A method is disclosed for constructing, verifying, and maintaining underground vaults that isolate and contain radioactive burial sites. The method employs a buoyant lift technique to isolate a block of soil containing the contaminates from the surroundin... | 04/06/1999 |
| 5879110 | Methods for encapsulating buried waste in situ with molten wax A method is disclosed for constructing, verifying, and maintaining underground vaults that isolate and contain radioactive burial sites. The method employs a buoyant lift technique to isolate a block of soil containing the contaminates from the surroundin... | 03/09/1999 |
| 5873675 | Method for hazardous waste vitrification Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic con... | 02/23/1999 |
| 5615978 | Management system for water-barrier sheet In a management system for a water-barrier sheet having a double layer structure with an upper sheet and a lower sheet, the interior space of the water-barrier sheet is hermetically sealed and divided into a plurality of enclosed divisions. A vacuum sourc... | 04/01/1997 |
| 5591115 | Barrier for blocking movement of contaminants within an aggregate particulate substrate A system and method of preventing groundwater contamination by a plume of liquid born toxic contaminants that includes establishing a dry barrier between a plume of liquid contaminants and the water table to immobilize the toxic contaminants. The dry barr... | 01/07/1997 |
| 5570974 | Assembly for monitoring a landfill and a method of locating leaks The monitoring assembly for a landfill or garbage dump comprises two sensor hoses, which are laid on both sides of a sealing liner parallel to each other. A transport medium can flow through the sensor hoses in the same or in opposite directions. First an... | 11/05/1996 |
| 5553971 | Double-containment underground piping system A coaxial piping system connected between an underground pump and an above-ground liquid dispenser is used to provide containment of the pumped liquid from the underground piping system, preventing unintended release into the environment. A pair of coaxia... | 09/10/1996 |
| 5524709 | Method for acoustically coupling sensors in a wellbore A method for releasably, acoustically-coupling an acoustical-energy sensor in a wellbore wherein the sensor is lowered in the wellbore and a soluble cement is flowed into the wellbore to completely encompass the sensor. The soluble cement is allowed to ha... | 06/11/1996 |
| 5519609 | Biosolids tracking system A biosolids tracking system monitors the quantity and quality of biosolids deposited on a plot of land. Global positioning system technology is used to determine the land coordinates of the boundary of the plot of land for accurate area calculation in ord... | 05/21/1996 |
