Daramend® was selected for treatment of soil impacted by PCE and TCE at the site as a result of operations by prior owners.
Under previous owners, historical site operations occurred
Unknown, Confidential Client
Northwest USA
PCE, TCE
PCE and TCE concentrations in the soil were as high as 3,800 mg/kg and 220 mg/kg, respectively. Treatment of the 335 tons of impacted soil using Daramend® treatment required anaerobic-aerobic cycling of the soil to generate strong reducing conditions followed by a short aerobic polishing.
After the first cycle, the concentrations of both PCE and TCE were reduced substantially. After the third cycle, the PCE concentration was reduced to below the remedial standard of 19mg/kg and the TCE concentrations was reduced to below the remedial standard of 1.2 mg/kg.
With a total treatment time of 3 months, the application of Daramend reagent reduced concentrations of PCE and TCE below the remedial standards at this site in the northwest USA.
Daramend® was applied first to a two-acre pilot project, and then to an additional 32 acres. The treatment successfully destroyed the concentrations of organochlorinated contaminants on time and on budget.
Daramend® reagent was the selected technology at a site for the treatment of 350 tons of soil impacted by phenoxy-acid herbicides (2,4-D, and 2,4,5-T), and other chlorinated pesticides (DDT, DDD, and DDE).
With nine years of data Daramend® addressed long-term mitigation of vapor pathway concerns over exposed areas containing concentrations of dissolved VOCs.
A 2,600-ton in situ pilot was conducted at a site in Florida using Daramend® Reagent achieving remedial goals within 3 weeks.