TERRAMEND® Reagent

This case study shows how TERRAMEND® accelerated the biodegradation of aged diesel‑contaminated soil at a Northern California industrial site, reducing TPH‑d from up to 3,000 mg/kg to below the 400 mg/kg target in just 120 days. By optimizing moisture, oxygen, and microbial activity, the ex situ bioremediation cell achieved fast, reliable cleanup with lower costs and a reduced carbon footprint compared to off‑site disposal. It demonstrates the effectiveness of TERRAMEND® for petroleum hydrocarbon remediation, sustainable soil treatment, and large‑scale bioremediation of diesel‑impacted soils.

This case study demonstrates how TERRAMEND® achieved a 99% reduction of hydraulic‑oil and diesel‑range hydrocarbons during ex situ bioremediation at a former manufacturing facility in Ontario. By optimizing microbial activity, soil moisture, and oxygen levels, TERRAMEND® reduced heavy‑oil and gas/diesel contaminants to well below remedial standards within 10 months. The project highlights TERRAMEND® as a cost‑efficient solution for petroleum hydrocarbon remediation, sustainable soil treatment, and large‑scale cleanup of oil‑impacted soils.

This case study shows how TERRAMEND® successfully treated soil impacted by 40,000 liters of crude oil released during a roadside tanker rollover in Western Australia. A single application of the reagent enabled effective ex situ bioremediation, reducing petroleum hydrocarbon concentrations across all fractions to below required criteria within six months. Despite arid conditions, wind, and moisture‑management challenges, TERRAMEND® delivered cost‑efficient petroleum hydrocarbon remediation, supported ecological restoration of a gravel pit, and provided a sustainable alternative to off‑site soil disposal.

This case study highlights how TERRAMEND® effectively treated soils impacted by polycyclic aromatic hydrocarbons (PAHs) and pentachlorophenol (PCP) at the Domtar Wood Preserving Site in Ontario. Under the US EPA SITE program, TERRAMEND® was applied in both in situ and ex situ bioremediation plots. Ex situ treatment reduced PAHs by 95% (from 1,774 mg/kg to 95 mg/kg) and chlorophenols by 98% (from 182.8 mg/kg to 3.3 mg/kg), achieving concentrations below the Canadian Council of Ministers of the Environment (CCME) soil criteria. In situ treatment also achieved significant reductions. The project confirmed TERRAMEND® as one of the most effective options for treating soils impacted by wood‑preserving chemicals.