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U.S. Department of Energy
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PCB removal from transformers. Final report

Technical Report ·
OSTI ID:7009051
A method is described for the extractive removal of PCBs from mineral oil dielectric fluids using polyethylene glycol solvents as the primary extraction media, followed by re-extraction of the polar liquids using a volatile secondary solvent from which the primary solvent can be recovered for reuse and the PCBs concentrated for ultimate disposal by incineration or chemical destruction. A method is further described for the adsorptive removal of PCBs from lightly-contaminated oils which could be developed into a rapid and convenient field purification method for these dielectric oils.
Research Organization:
Franklin Research Center, Philadelphia, PA (USA)
OSTI ID:
7009051
Report Number(s):
EPRI-EL-3345; ON: TI84920350
Country of Publication:
United States
Language:
English