SITE Demonstration of the Basic Extractive Sludge Treatment Process

摘要

The Superfund Innovative Technology Evaluation (SITE) Program planned and executed a pilot-scale evaluation of the B.E.S.T. process on sediment samples obtained from the Grand Calumet River. Two separate sampling locations were selected based upon previous data. One location had sediments with total polychlorinated biphenyl (PCB) concentrations averaging 10 mg/kg, and total polynuclear aromatic hydrocarbon (PAH) concentrations averaging 520 mg/kg. The other location had sediments with average total PCB and PAH concentrations of 427 mg/kg and 72,000 mg/kg respectively. Results showed that, of the samples which had low original contamination concentrations, 96% of the PAHs and 99% of the PCBs were removed following seven sequential extractions. Treated samples which had high original contaminant concentrations were found to have removal efficiencies of 99% for both PAHs and PCBs. (Copyright (c) 1993 Air & Waste Management Association.)