Using Recirculating Well Technology to Control the Migration of Volatile Organic Compound-Contaminated Groundwater in Brazil

摘要

Background/Objectives. A pharmaceutical manufacturing facility site has volatile organic compound (VOC)-impacted groundwater migrating off site. Remediation activities are designed to control the migration of VOCs to one of the two rivers boarding the site. Groundwater, through the existing monitoring wells, has been analyzed since 2005. The major compounds of concern (COC) are trichloroethylene (TCE), cis+trans-1,2-dichloroethylene (1,2-DCE), 1,1-dichloroethylene (1,1-DCE), vinyl chloride (VC), toluene, ketones (methyl isobutyl ketone and acetone), methanol and total petroleum hydrocarbons (TPH). Within the Recirculating Well Technology (RWT) system zone of influence, the primary COC are 1,2-DCE, VC and toluene.