Abstract: A gravity induced soil remediation system for filtering waste material from a waste stream includes an upstream trench member defining an interior area. A first distribution conduit is situated in the interior area and has an inlet in communication with the waste stream and an outlet extending downstream from the upstream trench member. The first distribution conduit has a negative elevation angle between the inlet and the outlet such that the waste stream flows downwardly therebetween by the natural force of gravity. The first distribution conduit is perforated to allow a first portion of the waste stream therein to pass therethrough. The upstream trench member includes sand and carbon filter media situated in the interior area of the upstream trench member proximate the first distribution conduit to extract waste material from the first portion of the waste stream. Subsequent downward elevation trench member are connected to the first.

Abstract: A near-surface collection manifold for extracting and/or venting sub-surface gas from beneath a geomembrane includes a plenum defining an enclosure with an upper portion. A conduit extends upwardly from the upper portion of the plenum, the conduit communicating with the interior volume of the plenum and has external threads for receiving a threaded nut thereon. The conduit is adapted and provided for extending through an aperture in the geomembrane for withdrawing sub-surface gas from within the interior volume of the plenum and through the geomembrane. A gasket having an opening formed therein is slipped over the conduit and above the geomembrane so that the geomembrane is sandwiched between the gasket and the upper portion of the plenum. A threaded nut is fitted to the conduit and above the gasket for securing the gasket against the geomembrane, thereby sealing the geomembrane to the upper portion of the plenum.

Abstract: A near-surface wellhead for extracting sub-surface gas from beneath a geomembrane includes a plenum defining an enclosure with an upper portion. A conduit extends upwardly from the upper portion of the plenum, the conduit communicating with the interior volume of the plenum and has external threads for receiving a threaded nut thereon. The conduit is adapted and provided for extending through an aperture in the geomembrane for withdrawing sub-surface gas from within the interior volume of the plenum and through the geomembrane. A gasket having an opening formed therein is slipped over the conduit and above the geomembrane so that the geomembrane is sandwiched between the gasket and the upper portion of the plenum. A threaded nut is fitted to the conduit and above the gasket for securing the gasket against the geomembrane, thereby sealing the geomembrane to the upper portion of the plenum.

Abstract: A manipulatable filtering system for use in a wellbore servicing system is disclosed. The system includes a first wellbore servicing system component configured to communicate a fluid via a first fluid conduit and a second wellbore servicing system component comprising a second fluid conduit. A filter system having an input conduit is in fluid communication with the first fluid conduit. The filtering system includes a plurality of input flow paths, each in fluid communication with the input conduit. The system further includes a plurality of filter housings, each in fluid communication with one of the plurality of input flow paths. A filter is disposed within each of the filter housings. A plurality of output flow paths are in fluid communication with the filter housings and an output conduit is in fluid communication with each of the output flow paths and the second fluid conduit.

Abstract: The primary function of the collapsible enclosure is to capture, isolate, and allow for the permanent removal of otherwise easily dispersed contaminates in aquatic sediments and detritus of water bodies. Once deployed, the collapsible enclosure creates an isolated volume of water above these media. Contaminated sediments and detritus covered by the enclosure can then be efficiently removed either by their dissociation from sediment and detritus and into a soluble form within the enclosed water volume or by suspension of contaminated sediments and detritus within the enclosure. The dissolved or suspended contaminants within the enclosure could then be removed by an external pump, for treatment or disposal of recovered water and solids. This invention can also control invasive, noxious or nuisance densities of aquatic plants and animals (such as zebra mussels) by placing enclosures over the area of concern and creating appropriate physical or chemical conditions within the enclosure.

Abstract: An off gas extraction system cleans common sources of off gas, such as storage tanks and polluted soils. Off gas is extracted, followed by compression and condensation. Compression and condensation produce an off gas that can be reintroduced as a treated gas into the off gas source. Alternatively, a regenerative absorber cleans the treated gas by adsorbing residual chemical vapor and concentrates the removed chemical vapors and reprocesses them. If the treated gas is not reintroduced into the off gas source, conventional scrubbers may used on the back end of the system to produce a final exhaust as prescribed by environmental regulation. Methods of accomplishing the same are similarly provided, including novel methods for degassing storage tanks and treating polluted soils to meet current environmental regulations, as well as green technology and sustainability initiatives.

Abstract: A method for removing seaweed from a beach. A first step involves providing a primary vessel with a seaweed collection area and a vacuum source. A second step involves anchoring the primary vessel offshore. A third step involves connecting one end of a vacuum hose to the vacuum source and extending a remote end of the vacuum hose to the beach. A fourth step involves controlling the positioning of the remote end of the vacuum hose along the beach with a secondary vessel that is small in relation to the primary vessel. A fifth step involves activating the vacuum and feeding seaweed into the remote end of the vacuum hose. The seaweed is drawn by the vacuum source through the vacuum hose to the seaweed collection area on the primary vessel.

Abstract: A method for treating soft soil, including dividing a site into a plurality of subsections, investigating profile of the soft soil in each of the plurality of subsections, estimating expected settlement of the soft soil in each of the plurality of subsections, installing a plurality of water-tight systems around the site to block seepage of ambient groundwater from entering the site, installing a plurality of vacuum pipes in the plurality of subsections in a layered matrix form, connecting the plurality of vacuum pipes to a vacuum system via a plurality of ground horizontal pipes, placing a piezometer in each soil stratum, probing ramming energy thereof by conducting dynamic trials, measuring pore water pressure dissipation of each soil stratum to determine the spacing of the plurality of vacuum pipes, and performing a plurality of cycles of vacuum-compactions in each of the plurality of subsections.

Abstract: A soil remediation system comprises an in-ground extraction well and separation apparatus connected to receive extracted soil vapors from the extraction well. The separation apparatus comprises plural pressure swing adsorption (PSA) components, respective ones of the PSA components containing a respective adsorption medium adapted to adsorb a respective species contained in the extracted soil vapors, the plural PSA components being connected in a serial succession to provide respective desorbed species flow streams of the respective species from the respective PSA components, some of the species being re-injected into the ground.

Abstract: A method is taught for applying vacuum pulses to enhance multiphase vacuum extraction of vapours and liquids from contaminated subsurface wells. The method involves first initiating continuous multiphase vacuum extraction from the subsurface well. Then one or more short vacuum pulses are imparted to the subsurface environment, to momentarily interrupt flow of vapours and liquids in the subsurface well. Time is allowed for a vacuum to build up in the extraction apparatus; and then the vacuum build up is rapidly released to momentarily increase velocity of vapours and liquids being extracted from the subsurface well. A device is further taught for imparting vacuum pulses to enhance multiphase extraction from contaminated subsurface wells, comprising a vacuum pulse tool having an inlet in fluid communication with the subsurface well and an outlet and one or more multiphase extraction vacuum pumps, connected to the outlet of the vacuum pulse tool.

Abstract: The present invention is a soft soil treatment method. Given soil profiles of site subsections investigated by using handy augers, coefficient of permeability and water contents of each soil stratum, rely on soil information-based control, install vacuum pipes, impart vacuum effort, uninstall partial vacuum pipes and impart vacuum-compaction efforts. Densify the site by dynamic or vibration compactions, with varied energies each cycle, to further save time and cost, eliminate the differential settlements and rubber soils, and guarantee construction quality.

Abstract: A non-intrusive vapor collection and abatement apparatus comprises an above-floor mat with a collection space underneath the above-floor mat within which air can pass freely hut which is surrounded by a substantially vapor-proof barrier. A vacuum or suction may be applied to the collection space to remove undesirable vapors.

Abstract: A non-intrusive vapor collection and abatement apparatus comprises an above-floor mat with a collection space underneath the above-floor mat within which air can pass freely hut which is surrounded by a substantially vapor-proof barrier. A vacuum or suction may be applied to the collection space to remove undesirable vapors.

Abstract: A system and method for removing floating product from an aquifer. The system includes a groundwater-depressing mechanism configured to create a depression in a groundwater surface that encourages migration of floating product to the depression. The system also includes a floating-product extraction mechanism configured to separate floating product from the groundwater at the depression.

Abstract: 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 downwardly from the passage, the columns being formed of a core material having an open permeable structure. The or each column has a fluid permeable exterior, and is in communication with the passage.

Abstract: A method and system for removing free phrase product from the surface of a subterranean body of water includes a plurality of extraction sites. The extraction sites extend below ground and intersect the free product. Each of the plurality of extraction sites is in communication with a vacuum supply which provides suction to remove free product from the surface of the groundwater.

Abstract: 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.

Abstract: Subterranean gases are removed from a building site by drawing air from ambience and passing the air through an air permeable bed of materials (10) located at the site as a diffused air stream. The subterranean gases become entrained in the diffused air stream which is then exhausted from the bed and removed from the site. A system for practicing the method has slotted air injection conduits (12) interspersed between slotted air extraction conduits (15) embedded in an air permeable bed of materials beneath the building. The system has a blower (18) for drawing air from the extraction conduits and removing it from the site.

Abstract: An in situ thermal desorption (ISTD) soil remediation system may be used to remove or reduce contamination within soil. Heat may be transferred to the soil from resistively heated, bare metal heater elements. The heater elements may be placed directly within the soil. Alternately, the heater elements may be suspended within casings. The heater elements may be conductive heaters, or the heater elements may be radiative heater elements. The ISTD soil remediation system may include temperature-resistant, chemical resistant, flexible conduits that transport off-gas removed from the ground to a treatment facility. A residence time of off-gas within the conduits may be sufficient to allow the off-gas to cool so that the off-gas may pass to a treatment facility through a manifold and piping made of polymeric material.

Abstract: The present invention relates to removal of subsurface contaminants and methods of 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 low concentration surfactant solution (and methods of making and using novel surfactant solutions) followed by an abiotic polishing process to thereafter achieve a substantially reduced subsurface contaminant concentration that surfactant flushing alone cannot achieve.

Abstract: A method of remediating a site of earth and groundwater contamination includes the steps of drilling at least one injection well, and preferably a plurality of injection wells, into the groundwater in a contaminated area. At least one, and preferably a plurality of extraction wells, are drilled into the earth above the groundwater, the vadose zone, in the contaminated area. The surface of the earth above the contaminated area is sealed, such as by a layer of concrete, asphalt, or plastic sheeting. Air and nutrients are injected into the contaminated area through the injection wells. The air is injected on a substantially continuous basis while the nutrients are injected on a batch basis. Air and vapor is extracted on a substantially continuous basis from the contaminated area by the extraction wells, which may be either vertically or horizontally positioned.

Abstract: An in situ thermal desorption soil remediation system may be used to remove contamination from soil. Heat may be applied to the soil by metallic strip heaters that have large cross sectional areas as compared to conventional heater elements. The strip heaters may be made of stainless steel. Large cross sectional areas of the strip heaters allow for large areas of thermal contact between the strip heaters and the soil being treated. Casings may not be needed between the strip heaters and the soil. The operating temperature of the strip heaters is self-regulating. As the temperature of a strip heater increases, the electrical resistance of the strip heater also increases. The increase in resistance causes a decrease in the power dissipation of the strip heater. The decrease in power dissipation as temperature increases allows a steady state heater strip temperature to be attained during use.

Abstract: A method of remediating a site of earth and groundwater contamination includes the steps of drilling at least one injection well, and preferably a plurality of injection wells, into the groundwater in a contaminated area. At least one, and preferably a plurality of extraction wells, are drilled into the earth above the groundwater, the vadose zone, in the contaminated area. The surface of the earth above the contaminated area is sealed, such as by a layer of concrete, asphalt, or plastic sheeting. Air and nutrients are injected into the contaminated area through the injection wells. The air is injected on a substantially continuous basis while the nutrients are injected on a batch basis. Air and vapor is extracted on a substantially continuous basis from the contaminated area by the extraction wells, which may be either vertically or horizontally positioned.

Abstract: A method for the remediation of contaminated soil comprising causing a carbonic acid aqueous solution to penetrate into the soil to liberate and remove contaminants contained in the soil.

Abstract: 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 introduced into the reactor vessel to create a slurry vortex of the contaminated sediment material and then a remediation fluid injected into the slurry vortex of the contaminated sediment material using a sufficient amount of the remediation fluid to remediate the contaminated sediment material and provide a noncontaminated sediment material. Pressurized seawater is injected into the interior of the reactor vessel to create a positive pressure within the reactor vessel to lift the reactor vessel above the ocean floor allowing for a transfer of the reactor vessel to another area of sediment contamination on the ocean floor.

Abstract: Removal of Light, non-Aqueous Phase Liquids (LNAPLs) from contaminated soils is expedited by injecting gas into extraction wells. The extraction wells are operated with a vacuum assist which produces a mounding of groundwater around the well. Gas is injected into the groundwater within the extraction well in the form of micro-bubbles. The bubbles rise through the LNAPL and volatilize it. The volatilized LNAPL is drawn to the surface and groundwater is left in the well.