METHOD FOR PROCESSING WASTE INSULATING OIL WHICH CONTAINS POLYCHLORINATED BIPHENYLS USING ELECTRON-BEAM

摘要

A method for treating the waste transformer oil containing polychlorinated biphenyl is provided to remove toxic polychlorinated biphenyl selectively and to reduce the viscosity of a transformer oil. The method comprises the step of irradiating an electron beam to the waste transformer oil containing polychlorinated biphenyl. Preferably the irradiation amount of the electron beam is 1-10,000 kGy based on the absorbed dose. Preferably the electron beam is irradiated in a range of 40-70 kGy to remove polychlorinated biphenyl selectively; and the electron beam is irradiated in a range of 20-50 kGy to reduce the viscosity of a transformer oil.