X-231B technology demonstration for in situ treatment of contaminated soil: Laboratory evaluation of in situ vapor stripping

Treatability of TCE-contaminated clay soils at the Rinsewater Impoundment, Michoud Assembly Facility

“…During the first run, conducted on core sample B4, the airflow rate was set to 56 L/min. FID readings indicated that some organics were leaving the soil core but not to the extent anticipated from previous results (West et al, 1993). When the auger was lifted h m the core, it was noted that the areas of the core that should have been mixed looked identical to the unmixed regions and that the entire core was muddy.…”

“…MMES has evaluated existing site characterization data and available technology options that may effectively remove VOCs from clay-type soils like those found in the impoundment site. Due to the similarity of soil conditions found at MAF and the X-231B Oil Biodegradation Unit located in the Portsmouth Gaseous Diffusion Plant, the technologies identified for the effective removal of volatiles from the clay-like soils found at Portsmouth (West et al, 1993) were used as an initial screen for technologies to decontaminate MAF soils.…”

“…Soil core samples taken from the impoundment were used to conduct laboratory studies, including the examination of technologies suggested by the work done for Portsmouth West et al, 1993). The following in situ technologies were chosen for evaluation: (1) vapor stripping, (2) peroxidation, and (3) zero-valence metal dehalogenation.…”