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groundwater remediation system Applications

  • 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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    MPP water purification systems for groundwater remediation application

    Toxic hydrocarbons in groundwater can be found dissolved in water diffused over the area. At higher concentrations they can be present as DNAPLs (dense non-aqueous-phase liquids) or LNAPLS (light non-aqueous-phase liquids) creating an enduring source of toxic contaminant supply to the water phase.

    By VWT Techno Center Netherlands B.V. - MPP Systems based in Ede, NETHERLANDS.

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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).

  • Air pollution control for soil remediation

    Epcon is known in the industry for the Soil Remediation Oxidizer, including Hazardous and Toxic Spills. Epcon Thermal OxidizerSystems, which operate in a very safe manner, clean up the toxic chemicals from the ground. We pre-test and pre-assemble the majority of systems in our 150,000 Sq. Ft. modern shop.

    By Epcon Industrial Systems, LP based in The Woodlands, TEXAS (USA).

  • Air pollution control for the soil remediation industry

    Treatment of exhaust gases from systems that process polluted or contaminated soil – commonly use incinerators for air pollution control needs.

    By Catalytic Products International (CPI) based in Lake Zurich, ILLINOIS (USA).

  • 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.

  • Soil and Groundwater treatment solutions for bioremediation industry

    Today bioremediation is successfully used as soil– and groundwater remediation technology. Many bioremediation systems, both in-situ as ex-situ techniques, usually result in considerable cost savings. Since the beginning of the 1980’s both in-situ and ex-situ bioremediation projects have been successfully completed worldwide through the use of preselected and adapted bacteria. QM Environmental Services supplies a range of microbial, bioactivator and nutrient products and gas delivery systems for the use in both aerobic and anaerobic bioremediation programs. Most common contaminants ranging from aliphatic hydrocarbons such as petroleum, lubrication oils, aromatic compounds like benzene and toluene to chlorinated solvents can be treated with these products.

    By QM Environmental Services Ltd. based in The Hague, NETHERLANDS.

  • Contaminant Site Investigation Applications

    Characterization of contaminated groundwater requires detailed monitoring to eliminate data gaps, improve predictive numerical models, and track remedial efforts. The Westbay System is a reliable, cost-effective technology for obtaining detailed information, enabling groundwater professionals to carry out comprehensive and defensible contaminant site investigations and long-term monitoring.

    By Westbay Instruments based in Burnaby, BRITISH COLUMBIA (CANADA).

  • Microbial Solutions for Soil Bioremediation

    The remediation of soils, sludge, and water require more than just the addition of packaged microbes.  Microbial Discovery Group can assist you in applying a total systems approach to soil bioremediation. Here in the US, sometimes we take for granted how precious it is to have non-contaminated soils and water. In many countries, industrial pollution has destroyed the soil and water ecosystems leading to toxic concerns and poor health. We at Microbial Discovery Group believe the remediation of soils, sludge and water require more than just the addition of packaged microbes. Applying a total systems approach to soil and water remediation has to be the primary focus of your bioaugmentation program. We are here to help you in that process. Lucky for us, many of the recalcitrant pollutants in the environment will serve as food sources to microbes.  By taking advantage of using natural processes to clean up contaminated sites, MDG provides solutions by speeding up the biodegradation of harmful chemicals. By rebalancing the system with the proper microbial processes, chemical breakdown will go from years to weeks.  Let MDG work with you to start cleaning up the world, one site at a time.

    By Microbial Discovery Group (MDG) based in Franklin, WISCONSIN (USA).

  • Sulfide Oxidation with Hydrogen Peroxide (H2O2)

    Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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