air sparging confined aquifer

  • PULSED AIR SPARGING IN AQUIFERS CONTAMINATED WITH

    PULSED AIR SPARGING IN AQUIFERS CONTAMINATED WITH

    Dec 22 2005 · Air sparging was evaluated for remediation of tetrachloroethylene (PCE) present as dense nonaqueous phase liquid (DNAPL) in aquifers. A two-dimensional laboratory tank with a transparent front wall allowed for visual observation of DNAPL mobilization. A DNAPL zone 50 cm high was created with a PCE pool accumulating on an aquitard. Detailed process control and analysis

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  • Soil Vapor Extraction Air Sparging and Aquifer Depression

    Soil Vapor Extraction Air Sparging and Aquifer Depression

    Soil Vapor Extraction Air Sparging and Aquifer Depression to meet Clean Up Deadlines and Improve Budget Efficiencies Client Redevelopment company Newark DE Brownfield Science Technology Inc. BSTI was retained to provide remediation solutions for paint purge solvents and other volatile organic compounds in soil and groundwater near a

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  • Performance assessment of in situ air sparging for the

    Performance assessment of in situ air sparging for the

    Abstract. In a test cell located at the Canadian Forces Base Borden near Barrie Ontario Canada a series of field experiments were conducted to evaluate the performance of in situ air sparging (IAS) for the removal of tetrachloroethylene (TCE) from a mildly heterogeneous sand aquifer.

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  • Air distribution in the Borden aquifer during DeepDyve

    Air distribution in the Borden aquifer during DeepDyve

    Dec 01 2003 · Read "Air distribution in the Borden aquifer during in situ air sparging Journal of Contaminant Hydrology" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Hydrogeo-chemical impacts of air sparging remediation on a

    Hydrogeo-chemical impacts of air sparging remediation on a

    Hydrogeo-chemical impacts of air sparging remediation on a semi-confined aquifer Evidences from field monitoring and modeling Article in Chemosphere 90(4) · September 2012 with 40 Reads

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  • Air SpargingCLU-IN

    Air SpargingCLU-IN

    Air sparging involves the injection of air or oxygen through a contaminated aquifer. Injected air traverses horizontally and vertically in channels through the soil column creating an underground stripper that removes volatile and semivolatile organic contaminants by volatilization.

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  • Guidance for Design Installation and Operation of

    Guidance for Design Installation and Operation of

    Most of this guidance is specific to remediation of unconfined aquifers however much of the guidance is also appropriate for confined aquifers. An aquifer is defined in this document as any soil or rock unit that contains water under saturated conditions. The term aquifer as used in this document

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  • Hydrogeo-chemical impacts of air sparging remediation on a

    Hydrogeo-chemical impacts of air sparging remediation on a

    Air sparging (AS) was explored for remediation of a petroleum contaminated semi-confined groundwater system in NE China. Physical hydro-chemical and hydraulic behaviors in subsurface environment during AS were investigated with support of modeling to understand the hydrogeo-chemical impacts of AS on the aquifer.

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  • TEMPLATE REVIEW MEMOFlorida Dep

    TEMPLATE REVIEW MEMOFlorida Dep

    Pursuant to paragraph 62528.630(2)(c) F.A.C. inventory information is provided below to notify you of proposed Class V Group 4 aquifer remediation well(s) to be constructed for groundwater remediation at a petroleum remediation site. The remediation system has been designed to inject atmospheric air only with no additional chemical additives.

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  • An Overview of In Situ Air SpargingJohnson1993

    An Overview of In Situ Air SpargingJohnson1993

    Kyle W. Rutherford and Paul C. Johnson Effects of Process Control Changes on Aquifer Oxygenation Rates During In Situ Air Sparging in Homogeneous Aquifers Groundwater Monitoring Remediation 16 4 (132-141) (2007).

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  • Field Study of Pulsed Air Sparging for Remediation of

    Field Study of Pulsed Air Sparging for Remediation of

    Aug 16 2005 · The air-sparging system consisted of 32 sparging points and had been previously operated in a continuous mode for two years before the field study was performed. Hydrogeo-chemical impacts of air sparging remediation on a semi-confined aquifer Evidences from field monitoring and modeling. In-well air sparging efficiency in remediating

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  • Fluids dynamics in transient air sparging of a

    Fluids dynamics in transient air sparging of a

    Oct 26 2010 · Water table dynamics dissolved oxygen (DO) content electrical resistivity (ER) in monitoring wells and air pressure in the vadose zone are monitored in air sparging (AS) accompanied by soil vapor extraction (SVE) at a hydrocarbon-contaminated groundwater site in Oman where a diesel spillover affected a heterogeneous unconfined aquifer.

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  • Soil Vapor Extraction Air Sparging and Aquifer Depression

    Soil Vapor Extraction Air Sparging and Aquifer Depression

    Soil Vapor Extraction Air Sparging and Aquifer Depression to meet Clean Up Deadlines and Improve Budget Efficiencies Client Redevelopment company Newark DE Brownfield Science Technology Inc. BSTI was retained to provide remediation solutions for paint purge solvents and other volatile organic compounds in soil and groundwater near a

    Get Price
  • Enhanced removal of VOCs from aquifers during air sparging

    Enhanced removal of VOCs from aquifers during air sparging

    Jan 01 2016 · Read "Enhanced removal of VOCs from aquifers during air sparging using thickeners and surfactants Bench-scale experiments Journal of Contaminant Hydrology" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at

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  • Aquifer Remediation Injection Wells for Air Sparging

    Aquifer Remediation Injection Wells for Air Sparging

    Aquifer Remediation Injection Wells for Air Sparging The Underground Injection Control (UIC) Program created under the authority of the Safe Drinking Water Act (SDWA) is a preventative program aimed at protecting existing and future underground sources of drinking water (USDWs).

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  • Air SpargingStuart Group

    Air SpargingStuart Group

    • At about 20-50/ton of saturated soil air sparging is less costly than aboveground treatment systems • Requires no removal treatment storage or discharge considerations for groundwater • Can enhance removal by SVE Summary of Air SpargingDisadvantages • Cannot be used for treatment of confined aquifers

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  • Hydrogeo-chemical impacts of air sparging ResearchGate

    Hydrogeo-chemical impacts of air sparging ResearchGate

    Hydrogeo-chemical impacts of air sparging remediation on a semi-confined aquifer Evidences from field monitoring and modeling Article in Chemosphere 90(4) · September 2012 with 40 Reads

    Get Price
  • Hydrogeo-chemical impacts of air sparging remediation on a

    Hydrogeo-chemical impacts of air sparging remediation on a

    Air sparging (AS) was explored for remediation of a petroleum contaminated semi-confined groundwater system in NE China. Physical hydro-chemical and hydraulic behaviors in subsurface environment during AS were investigated with support of modeling to understand the hydrogeo-chemical impacts of AS on the aquifer.

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  • Air distribution in the Borden aquifer during in situ air

    Air distribution in the Borden aquifer during in situ air

    T1Air distribution in the Borden aquifer during in situ air sparging. AUTomlinson D. W. AUThomson N. R. AUJohnson Richard. AURedman J. D. PY2003/12. Y12003/12. N2A field experiment was conducted at Canadian Forces Base Borden (CFB Borden) to assess the air distribution from a single in situ air sparging injection point.

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  • Chapter VII Air SpargingP2 InfoHouse

    Chapter VII Air SpargingP2 InfoHouse

    Contaminated groundwater is located in a confined aquifer system. Air sparging cannot be used to treat groundwater in a confined aquifer because the injected air would be trapped by the saturated confining layer and could not escape to the unsaturated zone. The effectiveness of air sparging depends primarily on two factors

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  • Chapter VII Air SpargingP2 InfoHouse

    Chapter VII Air SpargingP2 InfoHouse

    Contaminated groundwater is located in a confined aquifer system. Air sparging cannot be used to treat groundwater in a confined aquifer because the injected air would be trapped by the saturated confining layer and could not escape to the unsaturated zone. The effectiveness of air sparging depends primarily on two factors

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  • Technology Assessment of Soil Vapor Extraction and Air

    Technology Assessment of Soil Vapor Extraction and Air

    Depth to Groundwater Air sparging has been effective in an aquifer 150 ft below surface Looney Kaback and Corey 1991 . There appears to be no depth limit at which air sparging would not be effective but significant cost implications may accompany the installation of an air sparging system in a very deep aquifer. However a

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  • Bioremediation-Aerobic

    Bioremediation-Aerobic

    Common strategies for delivering oxygen to the subsurface include sparging air or oxygen into the aquifer injecting a dilute solution of hydrogen peroxide using ORCs and bioventing. The delivery of amendments (such as nutrients) may coincide with the oxygen delivery strategy or the amendments may be passively introduced via wells or trenches.

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  • Hydrogeo-chemical impacts of air sparging ResearchGate

    Hydrogeo-chemical impacts of air sparging ResearchGate

    Air sparging (AS) was explored for remediation of a petroleum contaminated semi-confined groundwater system in NE China. Physical hydro-chemical

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  • Air Spargingan overview ScienceDirect Topics

    Air Spargingan overview ScienceDirect Topics

    If the contaminated groundwater is located in a confined aquifer system air sparging is not advisable because the injected air would be trapped by the saturated confining layer and could not escape to the unsaturated zone. Anaerobic sparging an innovative technique in biodegradation depends on the delivery of an inert gas (nitrogen or argon

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  • Technical White Paperdekkervacuum

    Technical White Paperdekkervacuum

    2. Confined Space Locations in the AreaAir sparging can cause vapor phase contaminates to accumulate in these areas (basements sewers etc.) unless a vapor extraction method is used to control vapor migration. 3. Contaminated Groundwater is in a Confined AquiferAir sparging is

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  • 4-32 Air SpargingFRTR

    4-32 Air SpargingFRTR

    Figure 4-32 Typical Air Sparging System Air sparging is an in situ technology in which air is injected through a contaminated aquifer. Injected air traverses horizontally and vertically in channels through the soil column creating an underground stripper that removes contaminants by volatilization.

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  • Chapter 18 Flashcards Quizlet

    Chapter 18 Flashcards Quizlet

    (d) Springs appear where an aquifer crops out on a hillside. (e) If a fracture pattern directs groundwater flow toward a hillside a spring may develop. (f) If aquifer flow is directed toward the surface along a fault plane a spring may form. (g) When water in a confined aquifer migrates along a joint a

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  • National Remediation Framework

    National Remediation Framework

    • Whether air sparging will significantly reduce the risk posed by the Confined aquifer An aquifer that is overlain (confined) by an impermeable rock layer. Contaminant . Any chemical existing in the environment above background levels and representing or potentially

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  • Combined use of soil vapor extraction and air sparging in

    Combined use of soil vapor extraction and air sparging in

    article osti 567787 title = Combined use of soil vapor extraction and air sparging in the remediation of a petroleum hydrocarbon impacted site author = Simon T.D. abstractNote = Leaking test fuels from underground storage tank piping prompted a quick response to stop impacted groundwater migration into a nearby stream at a light industrial site located in the Midwest.

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  • Combined use of soil vapor extraction and air sparging in

    Combined use of soil vapor extraction and air sparging in

    article osti 567787 title = Combined use of soil vapor extraction and air sparging in the remediation of a petroleum hydrocarbon impacted site author = Simon T.D. abstractNote = Leaking test fuels from underground storage tank piping prompted a quick response to stop impacted groundwater migration into a nearby stream at a light industrial site located in the Midwest.

    Get Price
  • Volatilization and biodégradation during air sparging of a

    Volatilization and biodégradation during air sparging of a

    Volatilization and biodégradation during air sparging of a contaminated sand aquifer Y21 4.25 m below ground as well as at 5.75 m. The distribution of air was not radially symmetric with more air seen to the west of the sparging well and no evidence of air below the water table 2 m north of the sparging well.

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  • Fluids dynamics in transient air sparging of a

    Fluids dynamics in transient air sparging of a

    Water table dynamics dissolved oxygen (DO) content electrical resistivity (ER) in monitoring wells and air pressure in the vadose zone are monitored in air sparging (AS) accompanied by soil vapor extraction (SVE) at a hydrocarbon-contaminated groundwater site in Oman where a diesel spillover affected a heterogeneous unconfined aquifer.

    Get Price
  • Air Sparging Enviro-Equipment Inc.

    Air Sparging Enviro-Equipment Inc.

    Apr 22 2010 · Finally if the contaminated ground water is located within a confined aquifer system air sparging is not the best remediation option. Once the air is injected into the ground water of the confined aquifer it would be trapped there and not escape to the unsaturated zone making the whole AS system essentially ineffective.

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  • Air distribution in the Borden aquifer during DeepDyve

    Air distribution in the Borden aquifer during DeepDyve

    Dec 01 2003 · Read "Air distribution in the Borden aquifer during in situ air sparging Journal of Contaminant Hydrology" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    Get Price
  • National Remediation Framework

    National Remediation Framework

    • Whether air sparging will significantly reduce the risk posed by the Confined aquifer An aquifer that is overlain (confined) by an impermeable rock layer. Contaminant . Any chemical existing in the environment above background levels and representing or potentially

    Get Price

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