Over the years, we have successfully treated thousands of sites impacted by hazardous contaminants around the globe. To search our case studies, please use the filters provided at the right or enter a search term such as type of site (e.g. dry cleaner) or location (e.g. Florida).
The objective of the project was to demonstrate the efficacy of EHC® Liquid Injections for treatment of residual TCA and DCE contamination with limited access beneath the building and to reduce contaminant mass in the deeper saturated zone (20-25 ft bgs).
EHC® Liquid Reagent Chlorinated SolventsA relatively stagnant groundwater plume of PCE presents a vapor intrusion risk to the existing dry cleaning facility and adjacent businesses. Evidence of complete reductive dechlorination of PCE was observed over a relatively short time period and Dhc inoculation appears to have been successful.
EHC® Liquid Reagent Chlorinated SolventsGroundwater was is impacted with chlorinated solvents (primarily PCE, TCE and 1,2-DCE). A pilot test was first conducted in Nov 2011 by injecting EHC® Liquid reagent into the shallow aquifer. PCE and TCE concentrations were reduced to concentrations below the GWQS within 9 months following the pilot-scale treatment.
EHC® Liquid Reagent Chlorinated SolventsThe objective of this pilot test was to demonstrate flux reduction of TCE downgradient of an EHC® Liquid permeable reactive barrier (PRB). The flux calculations demonstrated a 73% reduction in 8 months. Advanced techniques such as real-time monitoring, microbial characterization and diagnostics and hi-res imaging were used to characterize and track remedial progress.
EHC® Liquid Reagent Chlorinated SolventsTerramend® Reagent was used to remediate approximately 10,500 cubic yards of soil impacted by diesel petroleum hydrocarbon at levels ranging from 500 mg/kg to 3,000 mg/kg.
Terramend® Reagent Petroleum HydrocarbonsApproximately 4,000 tons of soil impacted with hydraulic oil and diesel fuel at a former manufacturing facility in Georgetown, Ontario were effectively treated ex situ with Terramend® reagent.
Terramend® Reagent Petroleum HydrocarbonsTerramend® was used to treat soil impacted with 40,000 liters of crude oil along a remote stretch of highway north of Perth, Australia. The remediated soil was then used for gravel pit rehabilitation.
Terramend® Reagent Petroleum HydrocarbonsSoils impacted with Polycyclic Aromatic Hydrocarbon (PAH) and Pentachlorophenol were treated in situ and ex situ in an independent study for the US EPA Superfund Innovative Technology Evaluation (SITE) program. Terramend® reagent supported removal of all target compounds in soil at the Domtar Wood Preserving site.
Terramend® Reagent PAHs PhenolsAlkaline activated Klozur® KP was used to treat a plume containing 1,4-Dioxane and chlorinated ethanes using an injected permeable reactive barrier (PRB) design. Bench and field pilot test results indicated a greater than 99 percent reduction in groundwater concentrations often to below the detection limit.
Klozur® KP Chlorinated Solvents Miscellaneous