A pipeline release site in Central Alberta faced residual petroleum hydrocarbon contamination (BTEX, F1, F2) that could not be fully treated with a multi-phase extraction system. Due to site lithology, a risk-based in-situ chemical oxidation (ISCO) approach was implemented with a 1.5 to 2.5 meter injection radius, installing 12 injection wells and injecting 6,500 liters of 12% EHP (enhanced hydrogen peroxide) followed by 3,700 liters of 15% sodium persulfate using TRIUM’s ChemOx® process. The treatment successfully removed all residual NAPL, fully remediated the plume area, and exceeded performance expectations within a short timeframe.
Pipeline release was being treated using a multi-phase extraction system for non-aqueous phase liquids (NAPL). Residual contamination was unable to be treated using the current system. Lithology at the site comprised of clay with sand lenses as preferential pathways. Petroleum hydrocarbon impacts from 4 to 6 meters below ground surface.
Risk based in-situ chemical oxidation (ISCO) program based on 1.5 to 2.5 meter injection radius of influence. Establish health and safety protocol and site logistics for handling oxidizer.
Installed 12 injection wells and injected 6,500 liters of blended 12% EHP (enhanced hydrogen peroxide) oxidant followed with 3,700 litres of a sodium persulfate 15% blend. Blending is site specific following TRIUM’s ChemOx® process.
A closure-based in-situ chemical oxidation (ISCO) program was implemented at an operational power generation plant in Northwestern Alberta to remediate F2 and vinyl chloride contamination in 300 m³ of impacted soil. Site constraints, including existing infrastructure and a lack of groundwater, required a 0.75-meter injection radius for increased contact certainty. Over five days, 37 injection points were advanced, delivering 32,800 liters of 12% EHP (enhanced hydrogen peroxide) using TRIUM’s ChemOx® process. The treatment successfully met applicable soil quality guidelines within a short timeframe, with no disruptions to facility operations.
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