BTEX contaminated site 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 ...

  • BOS 200® - BTEX

    Residual, low level contamination seemed determined to stick around this former gas station site until BOS 200® was used to polish it ...

  • BOS 200® - BTEX (gasoline)

    Study conducted to evaluate effectiveness of BOS 200® in treating BTEX contamination at the ...

  • Failure of Magnesium Peroxide to Remediate Petroleum Hydrocarbon-Contaminated Sites (PDF)

    Researchers promote magnesium peroxide as a viable method to aerobically bioremediate petroleum hydrocarbons and restore groundwater quality. Suppliers claim that dissolved oxygen released in the saturated zone promotes biological growth for degrading a wide range of hydrocarbons dissolved in water and sorbed onto soil particles. Yet, staff with the CaliforniaRegional Water Quality Control Board, ...


    By Regenesis

  • BTEX, TPH, and MTBE Remediation at a Former Service Station

    Site Summary A former service station site was contaminated with TPH including MTBE and BTEX compounds. In California, MTBE sites are ranked in terms of threat to drinking water and this site was designated as a “Class A,” – or a site with the highest priority. Concentrations in the initial MTBE plume ranged from 17,000 ppb to 540 ppb, while initial BTEX concentrations ranged from 46,600 ppb to ...


    By Regenesis

  • 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

  • Southeastern Pennsylvania Site

    Groundwater Remediation of a Highly Contaminated Bedrock Site (BTEX and MTBE) Site History/Location Gas station/auto repair 1940s-1999. Heavy residential/commercial area in SE Penneylvania Eight USTs removed between 1994-1999 Catastophic petroleum hydrocarbon release, 1995. Surrounding properties include: ...

  • 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 ...

  • 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: ...

  • 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

  • TPHEnhanced pilot study - Residual Petroleum Remediation Former Fire Training Center: Naphthalene, BTEX Contaminants Former Chanute Air Force Base, Illinois USA case study

    Project Highlights TPHENHANCED proven to expedite biodegradation of saturated soil/groundwater PHC contaminants, anaerobically TPHENHANCED facilitated >96% reduction in Naphthalene over 13-week evaluation period. TPHENHANCED proven Green and sustainable strategy, minimizing environmental impact and remedial costs. TPHENHANCED cost-effective site ...

  • BTEX/TPH Remediation Using an Oxygen-Release Compound (ORC®)

    Hydrogen Release Compound (HRC) is a food grade, polylactate ester that, upon being deposited into the aquifer, is slowly hydrolyzed to release ...


    By Regenesis

  • Spolchemie site remediation and NanoRem field site application

    Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the ...


    By NANO IRON s.r.o.

  • 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

  • ORC Replaces SVE at Brownfield Site

    Site Summary A former service station was located on prime real estate in downtown San Francisco. Redevelopment was planned for the site, however, due to residual BTEX groundwater contamination, construction activity was halted. A soil vapor extraction (SVE) system previously operated at the site for approximately one year. This approach was not successful in reducing BTEX concentrations to ...


    By Regenesis

  • 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 ...

  • Polishing of BTEX And MTBE Service Station Closure Effort - Case Study

    Aservice station in Montgomery County, Pa underwent a hydro- geologic re-assessment in March 2002. The contaminants at the site included BTEX constituents; MTBE, a fuel oxygenate; Isopropyl-benzene; and Napthalene. These Contaminants of Concern (COC’s) were not degrading rapidly through natural attenuation and direct oxidation in the form of Fenton’s Reagent. ...


    By EN Rx

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