Former drilling waste disposal area under active remediation and with limited site access. Contaminants in the soil included BTEX, F1, and F2. A total of >10,000 m3 of low to moderate PHC impacted mineral soil, up to 7,000 ppm TPH.
EXCO process conducted on aliquots of up to 750 m3. Daily production of 300 m3. A specialized mulcher was used for the project in order to ensure the greatest contact between the oxidant and the impacted soils.
Mineral soils had a total of 500,000 Lof 25% - 50% EHP (enhanced hydrogen peroxide) applied.
A closure-based in-situ chemical oxidation (ISCO) remediation was conducted at a former gas station in Southern Alberta to address BTEX, F1, F2, and PAH contamination in 6,630 m³ of impacted soil, bedrock, and groundwater, including off-site impacts beneath residential properties. Due to infrastructure constraints and vapour risks, a Remediation Train® approach was implemented, starting with a soil vapour extraction (SVE) and air sparge system, followed by a ISCO program with a 3-meter injection radius. Nested injection wells targeted various depth intervals, with careful scheduling around residential activity. Over 45 days, 1.6 million litres of 10% EHP (enhanced hydrogen peroxide) was injected using TRIUM’s ChemOx® process, achieving daily blend volumes of >35,000 L. The treatment successfully met regulatory groundwater quality guidelines, managed vapour risks, and was recognized as an industry-leading process by consultants, with no negative impact on the community.
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 litres 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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