PCB removal from contaminated dredged material.
The purpose of this study was to evaluate the feasibility of decontaminating PCB contaminated sediment using land treatment technology. Five glass aquariums were set up to test the disappearance of polychlorinated biphenyls (PCBs) in dredged sediment under laboratory conditions that simulated photodegradation, biological transformation, and volatilization in dredged material confined disposal facilities (CDFs). A 40% decline in PCB concentration was achieved over a period of 5 months. Analysis of the variance in the data showed that periodic tilling produced a tangible effect on the disappearance of PCBs. However, the process or processes responsible for PCB disappearance could not be determined. PCB disappearance from the sediment was most likely caused by a combination of photolysis, volatilization, and biodegradation mechanisms rather than by any single process.
Tang
Ning H
NH
Civil Engineering Department, University of Puerto Rico, Mayagüez 00680, USA.
Myers
Tommy E
TE
D003666:Decontamination / Q000379:methods*; D019015:Geologic Sediments; D009518:New York; D011078:Polychlorinated Biphenyls; D012989:Soil Pollutants
D012989:Soil Pollutants; D011078:Polychlorinated Biphenyls