Abstract: The improved method of treating activated carbon having an organochlorine compound adsorbed thereon which comprises adding water to said activated carbon and then exposing said activated carbon to ionizing radiation, thereby decomposing and rendering harmless the organochlorine compound adsorbed on the activated carbon is described. The method is capable of safe and efficient decomposition of the activated carbon that has been used in adsorption treatment of organochlorine compounds such as PCBs and trichloroethylene that have heretofore been difficult to treat. The activated carbon that has hitherto simply been accumulated to date after adsorbing organochlorine compounds can be effectively treated by the method at low cost.

Abstract: In a disinfector system for use in disinfecting a water current into a disinfected water current, the disinfector system comprises a conduit (22) which extends along a vertical direction. The conduit has an inlet port and an outlet port and guides the water current from the inlet port to the outlet port. The water current is shaped into a water current film by a shaping section (25) which is connected to the outlet port. The water current film is irradiated by an electron beam to be disinfected into the disinfected water current. The electron beam is produced by an irradiating section (12). The disinfected water current is spurted to a discharge section (13).