In situ Immobilization and Detoxification of Chromate-Contaminated Ground WaterUsing Zero-Valent Iron: Field Experiments at the USCG Support Center, Elizabeth City, North Carolina

摘要

A small-scale field test was intitiated in September 1994 to evaluate the in situremediation of ground water contaminated with chromate using permeable reactive barrier. In addition to monitoring the removal of chromate from the aqueous phase, efforts were made to identify resultant mineral phases formed as a result of the corrosion process. Frequent geochemical monitoring of waters in the test zone were also conducted to confirm or elucidate the proposed chemical mechanisms responsible for remediation. Testing and monitoring continues to provide information required for long-term performance assessment of such remedial technologies.