BTEX contaminated soil Articles

  • Case study – BTEX contamination - Colorado

    Site: Former Gas Station (Colorado) Contaminant: BTEX Soil Type: Silty Clays Injection Cost: $8,500 (material & labor) Treatment Area (before): approximately 400 sq. ft. Thickness: 16 to 22 feet bgs Plume Area (after): All contaminates are below groundwater standards Groundwater: varies from 16 to 18 feet ...

  • Case study – BTEX contamination - Kentucky

    In 1992, remedial activities began at the Shively Service Center located in Radcliff, Kentucky. After the leaking underground storage tanks were removed from the site approximately 1,500 cubic yards of BTEX impacted soil was excavated and disposed off-site from the tank pits. Based on the review of historical sampling activities it was believed that the majority of the impacted soils were removed ...

  • Case study – BTEX contamination pilot study

    Site: Pilot Project Maintenance Facility (Colorado) Contaminant: BTEX Soil Type: Sandy Silts to Silty Clays Injection Cost: ~$12,000 (material & labor) Treatment Area: approximately 1000 sq. ft. (around MW-7) Thickness: 8-foot area (7 to 14 feet bgs) Groundwater: About 8-10 feet bgs Site Status: Approved for final treatment in the fall of ...

  • Case study – BTEX contamination pilot study - gasoline

    Site: Convenience Store – Pilot Study Contaminant: BTEX (gasoline) Soil Type: Silty Clays Injection Cost: $24,000 (material & labor) Plume Size (before): 1150 sq. ft. Thickness: 8 feet (14 to 22 feet bgs) Plume Size (after): Contamination only exists at edge near heavily contaminated, untreated areas. Groundwater: About 16 feet bgs Goals: The intent of ...

  • CH#952 - Oil Contaminated Soil

    SITE OWNER: A National Overnight Express Package Company SITE SURVEY: Site and geological surveys revealed a contaminated area north of the facility and west of a diesel tank pit. The cause of the contamination was the result of two (2) underground storage tanks (UST™). One tank contained waste oil while the other contained new oil. Both tanks had ...

  • Case study – condensate contamination

    Site: Natural Gas Wellhead Site (Colorado) Contaminant: BTEX (LNAPL/free product present) Soil Type: Well-sorted sand and gravel Injection Cost: $13,000 (material & labor): Size of Trenches: Approximately 5 feet by 55 feet No. of Trenches: 5 (4 at size above, 1 added in the field - ~5 feet by 21 feet Depth of Trench: ~7 feet below ground surface Goal: ...

  • The environmental aspects of the evaporation of BTEX from gasoline with and without ethanol

    In this work the vapours from two columns simulating gasoline–contaminated soils (with and without ethanol) were monitored. Standards mixtures of BTEX, containing different ethanol contents were also analysed. The instrumental analysis was performed by Gas Chromatography with a Flame Ionisation Detector. Among BTEX, except benzene, in both columns the evaporation rate increases with time. In the ...


    By Inderscience Publishers

  • In Situ Bioremediation of Soil and Groundwater: A Case Study

    Untitled Document The subject site is located in downtown Denver, Colorado and was formerly operated as a bulk petroleum storage facility. Bulk storage of gasoline, diesel and fuel ...


    By Regenesis

  • Biodegradability of Alternative Oxygenates as a Sole Carbon Source or in the Presence of BTEX

    ABSTRACTThe biodegradability of alkylate compounds in serum bottles was investigated as a sole carbon source or in the presence BTEX. The biomass was acclimated with 2,3-dimethyl pentane (2,3- DMP), 2,4-dimethyl pentane (2,4-DMP) and 2,2,4-trimethyl pentane (2,2,4-TMP) in porous potreactors. The alkylates (2,3-DMP, 2,4-DMP, and 2,2,4-TMP) were completely biodegraded in all the sets of ...

  • Pilot Scale Remediation of BTEX, MTBE, Naphthalene, Isopropylbenzene, and Trimethylbenzene

    Site Summary Michigan’s Department of Environmental Quality (Environmental Response Division) has spearheaded efforts to clean up concentrations of petroleum compounds associated with two former underground storage tanks. A field pilot study was performed to determine the effectiveness of ORC in treating the on site petroleum hydrocarbon contamination.Approximately 3,720 lbs. of ORC were ...


    By Regenesis

  • Remediation of BTEX in Groundwater with LNAPL Using Oxygen Releasing Materials (ORM).

    Abstract: A field scale study was conducted at a former gasoline service station to evaluate the remediation of groundwater contaminated with dissolved benzene, toluene, ethylbenzene, and xylenes (BTEX) using oxygen-releasing materials (ORM). The injection of oxygen through ORM slurry was the remedial alternative chosen to enhance the in-situ microbial degradation of the BTEX in groundwater. ...


    By Regenesis

  • Combining HVME and Enhanced Bioremediation for Gasoline Contamination in Groundwater

    A leaking underground storage tank at a commercial petroleum retail site located in Haskell, Texas resulted in soil and groundwater petroleum hydrocarbon contamination. This contamination, including benzene, toluene, ethylbenzene, and total xylenes (BTEX) and total petroleum hydrocarbons (TPH) migrated down-gradient below a road and neighboring property. Access below the adjacent roadway was ...


    By Regenesis

  • Successful Pilot Test Results in Full-Scale Treatment of Large BTEX Plume

    CASE SUMMARYRefueling Station – Algonquin, IL Leaking underground storage tanks at a refueling station resulted in a benzene, toluene, ethylbenzene and xylene (BTEX) plume in the underlying sand/gravel aquifer. The plume covered 1-acre and extended 390 feet downgradient from the source area, with a total BTEX concentration exceeding 24,000 parts per billion (ppb). In an ...


    By Regenesis

  • Combining HVME and Enhanced Bioremdiation for Gasoline Contamination in Groundwater.

    ABSTRACT A leaking underground storage tank at a commercial petroleum retail site located in Haskell, Texas resulted in soil and groundwater petroleum hydrocarbon contamination. This contamination, including benzene, toluene, ethylbenzene, and total xylenes (BTEX) and total petroleum hydrocarbons (TPH) migrated down-gradient below a road and neighboring property. Access below the adjacent roadway ...


    By Regenesis

  • Bioaugmentation by horizontal injection to remediate petroleum in tight soils

    In situ remediation is a contact sport, requiring contact between the microbes and contamination. Clay-rich soils are particularly challenging as the low permeability limits effective distribution of inoculants. While numerous closely-spaced injection points can improve the distribution of inoculants, this approach is usually not possible at active properties. Horizontal drilling was used on the ...


    By CL Solutions, LLC

  • Case study - GRO in soil at gasoline UST site

    These case studies show the performance using Sitelab’s UVF-3100 analyzer testing gasoline range organic hydrocarbons.  This includes benzene, xylene, BTEX and other volatile petroleum compounds in the GRO or VPH C6 to C10 hydrocarbon range. When calibrated using Sitelab's GRO calibration kit (CAL-025), the UVF analyzer produces test results that correlate well to laboratory ...


    By Sitelab Corporation

  • Full Scale Remediation of Trichloroethene and Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) in Soil Using Six Phase Soil Heating - Niagara Falls, NY - Case Study

    Contracting: Fixed Price Per Task Contaminants Treated: Trichloroethene (TCE), Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) Technology Applied: Six-Phase Soil Heating (SPSH) Geology: Sediments, glacial till, bedrock Hydrology: Groundwater at 8 feet below ground surface (bgs) Hydraulic Conductivity: 3 x 10-4 cm/sec Treatment Area & Volume: 12,100 square feet & 4,480 cubic ...


    By TRS Group, Inc.

  • Sulfate-Enhanced bioremediation of BTEX - Case Study

    Problem A former gas station in North Carolina contaminated groundwater with BTEX from a UST basin. The site is now in the median of a busy four-lane highway. Residents within 250 feet of the site use an irrigation well, prompting the need to conduct proactive remedial action. Site conditions of sand and clay above partially weathered bedrock and depleted sulfate concentrations within the ...


    By EOS Remediation, LLC

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • Replacement of P&T with ORC Advanced Reduces Cost to Closure

    Site Summary Two leaking USTs resulted in soil and groundwater contamination at a service station in Michigan. Naphthalene, trimethylbenzene (TMB) and BTEX contamination were discovered in the subsurface prompting the need for remedial cleanup. Michigan DEQ began remediation via UST removal and soil excavation. A total of 4,000 cubic yards of contaminated soil was removed. A pump and treat ...


    By Regenesis

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