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groundwater extraction Applications

  • Monitoring of VOCs in Porewater

    Monitoring VOCs in porewater in the unsaturated zone is now possible.

    Sorbisense regularly offers new options for using the patented Sorbicell, which is used to monitor surface water, wastewater and groundwater.

    The latest is almost as “ground-breaking” as the SorbiCell itself. Until now it has been difficult, if not impossible, to directly monitor for volatile substances in pore water in the unsaturated zone. But the environmental consultancy firm Ejlskov A/S in Aarhus combined the use of Sorbisense sampling equipment with the proven technology of soil water samplers. With this combination, a practical new method is made available, which allows for monitoring the presence of porewater-dissolved VOCs above the groundwater table. This provides a significantly improved basis to define and determine the leaching risk to the groundwater, and thus allows for better and more cost-efficient decisions to prevent the pollution in reaching the groundwater.

    A simple construction with multiple options

    The application uses SorbiCell VOC combined with suction cells, soil water samplers. When installed correctly, and applied with the correct procedures, the suctions cells extract capillary bound water from the soil matrix. The system demands no other resource than a container that is put under vacuum. The vacuum in the container then ensures a flow through of the Sorbicell over a period of time, fx. 2-3 weeks. The method is highly suitable for monitoring a site over longer periods of time.

    By SORBISENSE based in Tjele, DENMARK.

  • Solutions for the in-situ soil remediation

    For over twenty years, BioSolve Pinkwater has been used for Surfactant Enhanced Remediation (SER) to mobilize and solubilize residual NAPL[i], facilitating its recovery and disposal. Depending on soil and plume characteristics, Pinkwater solution can reach contaminated zones through deep injection wells or be gravity fed from surface level injection galleries. After desorbing residual NAPL from soil surfaces on contact, Pinkwater then solubilizes the hydrocarbons in an aqueous emulsion, enabling extraction at down gradient recovery wells or trenches.

    By The BioSolve Company based in Lexington, MASSACHUSETTS (USA).

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    Air pollution control for the remediation industry

    The remediation division of Anguil Environmental Systems (formerly known as Global Technologies) is focused on treating emissions and water contaminants extracted from below the earths` surface.  Formed shortly after the 1990 Clean Air Act targeted emissions associated with the extraction of polluted compounds from contaminated sites, Global subsurface remediation equipment has been successfully applied on contaminated sites in North and South America, Europe, Asia and Australia.

    By Anguil Environmental Systems, Inc. based in Milwaukee, WISCONSIN (USA).

  • Horizontal Remediation Well Systems

    Horizontal wells are a proven and effective remedial technology for site cleanup. For environmental applications, horizontal wells offer several advantages in comparison to traditional vertical wells. The first horizontal wells were installed using a mid-sized directional drill rig in 1993 by Directional Technologies, Inc. The three (3) horizontal Soil Vapor Extraction wells installed at John F. Kennedy International Airport was the beginning of a new industry. Directional Technologies, Inc. founders transferred their experience from the oil fields to the environmental industry. This has resulted in the installation of over 1,000 horizontal wells for site remediation worldwide. Horizontal Remediation Wells are a time-tested and proven technology that can provide solutions for problems previously considered unfeasible. Interested in learning more about this remedial technology, visit us at www.directionaltech.com for case studies and more.

    By Directional Technologies, Inc. based in Miramar Beach, FLORIDA (USA).

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    Oil in Water Analysis for Flowback or Produced Water

    The amount of water used in and produced by hydraulic fracturing of shale gas wells is in the millions of gallons per well. Whether the water is going to be taken off site for disposal or reused for re-injection, the flowback or produced water needs pretreatment to remove any residual oil from the water. Waiting for remote lab results can take several days to a week. InfraCal TOG/TPH Analyzers allow for oil in water testing at the well site in less than 10 minutes. The sampling requires a few simple steps that can be performed by non-technical personnel. The water is mixed with the extraction solvent, shaken, and then presented to the analyze for measurement. The same InfraCal TOG/TPH Analyzer can be used for TPH in soil if a spill or pond leak occurs to determine the contaminated area. The analyzer features: -Results in under 15 minutes -Detect levels as low as 10 ppm -Portable, rugged, lightweight, easy-to-use -Battery operable -Ideal for field or lab use

    By Spectro Scientific based in Chelmsford, MASSACHUSETTS (USA).

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    Mining & minerals solutions for acid mine drainage industry

    Through the application of modern mining technologies, WesTech helps to assure that the byproducts of minerals extraction process are made inert, reliably contained and kept from causing environmental damage. Implementation of WesTech tailings processing technology assures protection of the groundwater, surface waters, wildlife and communities which in the past have been the victims of tailings dam leaks and levy failures.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA).

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