sparge well Articles

  • Air Sparging - Technology Overview

    Air sparging involves injecting a gas (usually air/oxygen) under pressure into the saturated zone to volatilize groundwater contaminants and to promote biodegradation in saturated and unsaturated soils by increasing subsurface oxygen concentrations. Vola tilized vapors migrate into the vadose zone where they are extracted via vacuum, generally by a soil vapor extraction system. The term ...

  • Horizontal Soil Vapor Extraction and Horizontal Air Sparge Wells Case Study-

    Directional Technologies Is The Expert At Horizontal Soil Vapor Extraction   A horizontal soil vapor extraction well and two horizontal air sparge wells rapidly remediate contamination in situ under a research and development facility. These horizontal wells were installed by environmental directional driller Directional Technologies with no access to inside this sensitve facility. ...

  • Air and Ozone Sparging of TCE Using a Directionally Drilled Horizontal Well

    A one year pilot test was performed at Marine Corps Base, Camp Lejeune to evaluate the performance of air and ozone-enhanced air sparging via a horizontal well. The primary contaminant at the site is trichloroethylene (TCE), with concentrations ranging from 200 to 800 μg/L at a primary target depth of 40 to 45 feet below ground surface (bgs). Site geology consists of silty clay overburden, ...


    By CH2M Hill Companies, Ltd.

  • Horizontal Air Sparge Wells Solve Access Limitations beneath Air Field Tarmac

    Air Force Base tarmac is a double-edged sword with respect to environmental remediation. Concrete thicker than at commercial airports virtually eliminates infiltration and limits migration of jet fuel constituents in groundwater, but source material in the vadose zone remains indefinitely, extending the life of the groundwater plume. Horizontal air sparge wells are an effective means of ...

  • Effective treatment of MtBE and breakdown products using C-Sparge and Perozone®

    Ozone oxidation systems like C-SpargeTM (microbubble ozone) and Perozone® (peroxide-coated ozone) are used for treatment of a variety of contaminants. From non-volatile to volatile compounds, from saturated to unsaturated compounds. The most common contaminants treated are chlorinated solvents, petroleum products and PAHs. Engineered microbubble systems with ozone (C-SpargeTM) or a combination of ...


    By Verhoeve Milieu & Water

  • Evaluation of a Horizontal Well

    Background: Air Sparging Air sparging is an in-situ remediation technology where air is injected into the saturated zone of an aquifer. It is an alternative to conventional ex-situ pump and treat systems for remediation of contaminated ground water. It is necessary to understand the pattern of air flow that will occur in the subsurface in order to determine the optimal placement, ...

  • Horizontal Wells - Technology Overview

    Horizontal well technology has been incorporated into many current environmental remediation applications (and associated contaminants), such as in situ bioremediation, air sparging, vacuum extraction, soil flushing, free product recovery, etc. Ac cording to information reviewed, this technology is most applicable to sites with relatively shallow soil and/or groundwater contamination, and can ...

  • DTI installs 3 blind horizontal remediation wells in cobble

    The Issue An active retail gas station next to a wetland area has benzene and trimethylbenzene plumes in a water table aquifer containing sand, gravel and cobbles. Rock fragments and boulders several feet in diameter lie in the vadose zone, between the ground surface and the water table. Business at the gas station would slow down or stop for an extended period of time if a vertical ...

  • DTI installs horizontal remediation wells under busy intersection

    The Issue A retail gasoline station in Tallahassee Florida with leaking underground storage tanks sits atop a local groundwater divide, causing petroleum hydrocarbon plumes to migrate in opposite directions from the site. In one direction, the plume has migrated under a residential neighborhood on downward sloping terrain, and in the opposite direction, the plume has migrated under a ...

  • Horizontal Remediation Wells used in order to preserve military security

    Project Description: Remediate a plume of trichloroethylene (TCE) under multiple military buildings by air sparging (AS) and soil vapor extraction (SVE). There are two target zones: the shallow zone is approximately 70' below grounds surface (bgs) and 20' below this is the deep zone. The plume was located under multiple buildings comprising an area of approximately 150,000 SF. Scope of Work: ...

  • Soil and Ground Water Remediation Case Study

    On this State Funded Clean-Up project, Global was the project engineer and was responsible for the design of an air sparging/soil vapor extraction remediation system. The system included five soil vapor extraction wells and twelve sparging wells that operated on a rotating schedule. One of the soil vapor extraction wells and nine of the sparging wells were installed as horizontal wells beneath ...

  • Introduction to Ozone Injection Technology

    Untitled Document Ozone is a highly reactive chemical that has proven to be effective in destroying a wide variety of organic chemicals, including MtBE and chlorinated VOCs. ...

  • Ozone pilot study at Camp Lejeune - Marine Coprs Base

    Air and Ozone Sparging of TCE Using a Directionally Drilled Horizontal Well#11;#11;Site 86, Camp Lejeune CH2M HILL used a Piper Environmental Group ozone injection system for site remediation purposes with good results. Site 86 is associated with three former waste oil ASTs, used during the 70s and 80s. Over the course of several investigations since 1992, the solvent plume migrated away ...

  • Gas station: Stuart, Florida

    Aerobic bioremediation with air sparging Site Description Underground storage tank (UST) leaks from a gas station contaminated shallow ground- water under the property. Following the removal of the leaking USTs and impacted soils around the tank cavity, combined air sparging and aerobic bioremediation was implemented to remediate the groundwater. Site ...


    By CL Solutions, LLC

  • In Situ Physical/Chemical Treatment for Ground Water and Leachate

    The main advantage of in situ treatments is that they allow ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ processes, however, generally require longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more ...

  • Gasoline pipeline break - Sun Oil Company

    LOCATION:  Ambler, PAPROJECT DATE:  July, 1972 to January, 1974CLIENT:  Sun Oil Company BACKGROUND: A pipeline break spilled an estimated 3,186 barrels of high octane gasoline into an aquifer composed of a highly fractured dolomite. The gasoline was contained by pumping nearby wells. Physical recovery of the gasoline continued until no longer productive an estimated 1,000 barrels ...


    By Terra Systems, Inc. (TSI)

  • Manufactured Gas Plant

    PROBLEM: MW 101 Primary remediation – Excavation and ISS Residual source material at the edge of stabilized material. ...

  • In Situ Thermal Remediation of DNAPL and LNAPL Using Resistance Heating

    Electrical resistance heating (ERH) is an in situ thermal treatment for soil and groundwater remediation that can reduce the time to clean up volatile organic compounds (VOCs) from years to months. The technology is now mature enough to provide site owners with both performance and financial certainty in their site-closure process. The ability of the technology to remediate soil and groundwater ...


    By TRS Group, Inc.

  • TCE Remediation at a Brownfield Site – St. Louis, MO

    Site Summary In June of 1999, the property owner of this former metal container manufacturing facility decided to redevelop theproperty into commercial office space. However, environmental assessment revealed impacted soil andgroundwater with TCE and 1,1,1-TCA, as well as their breakdown products (making it clear that some degree ofbioremediation was already occurring). Redevelopment ...


    By REGENESIS

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