Abstract |
Cleanup of the nation's hazardous waste sites is one of the top environmental priorities. Since the ultimate objective of many cleanup programs is to return the contaminated site and buildings on the site to active use, additional information regarding both established and emerging technologies for building decontamination is needed. A pilot scale study was performed at an actual Superfund Site to evaluate, side by side, the efficiency of PCB removal using two decontamination processes. One process entails the use of a shotblasting technique in which contaminated concrete surfaces are cut away and physically removed. The other process involves application of an alkali metal/polyethylene glycolate mixture directly to contaminated concrete surfaces for insitu degradation of PCB's. (Copyright (c) 1990--Air & Waste Management Association.) |