Process Technology ’88 Paper Title: Removal of PCBs From Concrete

Decontamination of concrete containing polychlorinated biphenyls (PCBs) has become a major concern to government and industry. Particularly related to heightened activity in replacement of PCB containing electrical transformers, discovery of contaminated concrete has prompted the need to know available solutions and their costs. Methods available for solving concrete/PCB problems include solvent washing, encapsulation and removal. The method selection is determined by level and depth of contamination, and must be executed in an environmentally-safe manner to prevent spreading the contamination over a wider area. Several techniques are commercially available. As demonstrated in a case history example, these technique