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.
Historical operations in the area had impacted the soil. Infrastructure currently in place limiting the remedial strategies available. Soil comprised of sandy loam with little to no moisture. Groundwater was present deeper than the zone of impacts.
In-situ chemical oxidation (ISCO) program based on 0.75 meter injection radius of influence to increase contact certainty between the oxidant and the contaminants due to lack of groundwater. Injections were conducted using drive-points to target various depth intervals within each injection point. Due to current operations, the program demanded that injections could not conflict with day-to-day operations of the facility.
Over 5 days, advanced 37 injection points, and injected 32,800 litres of blended 12% EHP (enhanced hydrogen peroxide) oxidant. Blending is site specific following TRIUM’s ChemOx® process.
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