Treatment of pcb-contaminated soil in a pilot- scale continuous decomposition system

The BCDP (Base Catalyzed Decomposition Process) is a process by which difficult-to-decompose organic chlorine compounds, such as PCBs, are chemically decomposed and dechlorinated. Pilot-plant tests for PCB contaminated soil were carried out. PCB contaminated soil (32mg/kg-530mg/kg) was decontaminated to a level (0.038mg/kg - 4.8mg/kg) which satisfied the corresponding Japanese environmental standard which stipulates, “there must be no discharge of PCB containing leachate”.