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MTBE




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AZ Superfund Site Uses ISCO to Replace Recirculation Wells Leading to Cost Savings of $100,000

Download the PDF Project Highlights 95% reduction of BTEX, MTBE and TMBs reported on-site Total savings estimated to be $100,000 In Situ Chemical Oxidation (ISCO) combined remedy design incorporates PersulfOx® to effectively address reduction in contaminants Project Summary A former industrial paint facility in Tempe, Arizona was contaminated with high levels of gasoline in the …

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Single PersulfOx® Treatment Reduces MTBE Concentrations by 50 Percent

Download the PDF Washington DC Retail Petroleum Service Station Remediated with ISCO Project Highlights Both PersulfOx and NaOH activated persulfate used on-site to test effectiveness Single injection event of PersulfOx resulted in 50% reduction of MTBE Backfilled gravel excavation used as a treatment cell for contaminant mass migrating from an inaccessible dispenser canopy toward the …

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Combined Remedies Replace Costly Mechanical Remediation Systems

Download the PDF RegenOx® and ORC® Advanced Treat MTBE/TBA at Five Active California Service Stations Project Highlights In situ chemical oxidation (ISCO), enhanced aerobic biodegradation replaced costly mechanical remediation systems. Underground infrastructure required extra precaution when applying remediation reagents on each site. Site closure or review of site closure at all five service stations. Project …

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RegenOx® Treats Benzene in Low Permeability Soils

Download the PDF Introduction Service station operations created a benzene contaminant plume in tight subsurface soils. A dual-phase extraction system (DPE) was installed and removed a total of 9,965 pounds of petroleum hydrocarbons over two 90-day operational periods. However, contaminant removal reached asymptotic levels and a more effective remedial strategy was needed to address the …

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Site Closure Sought after using ORC® Biobarrier to Enhance Aerobic Biodegradation of MTBE and TPHg

Download the PDF CASE SUMMARY Former Service Station – Bishop, CA Extensive methyl tertiary-butyl ether (MTBE) and total petroleum hydrocarbons as gasoline (TPHg) contamination was discovered within the subsurface as a result of leaking underground storage tanks (USTs) at a former service station. Following the removal of the leaking USTs, a total of 1,192 cubic …

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In Situ Aerobic Bioremediation vs. AS/SVE Cost Comparison at UST Site

Download the PDF REGENESIS® Demonstrates Effective Cost-Savings Using ORC® Project Highlights An in situ aerobic bioremediation pilot test demonstrates a cost-effective treatment option vs. traditional Air Sparge and Soil Vapor Extraction (AS/SVE) system Within one month, benzene concentrations were reduced from baseline concentrations of 200 ug/L to non-detect (>5 ug/L) Approach using ORC® resulted in …

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Barrier Design and Angled Injections used to Treat BTEX and MTBE to Non-Detect

Download the PDF   Project Highlights   A former service station was contaminated with BTEX and MTBE. Enhanced aerobic biodegradation using ORC Advanced was used for treatment. The remediation design utilized a staggered, barrier configuration to optimize oxygen distribution. Angled injections were used to deliver ORC Advanced beneath the restaurant.   Summary A former gasoline …

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