Removal of volatile and semivolatile organic contamination from soil by air and steam flushing

摘要

A soil core, obtained from a contaminated field site, contaminated with a mixture of volatile and semivolatile organic compounds (VOC and SVOC) was subjected to air and steam flushing. Removal rates of volatile and semivolatile organic compounds were monitored during flushing. Air flushing removed a singificant portion of the VOC present in the soil, but a significant decline In removal rate occurred due to decreasing VOC concentrations in the soil gas phase.