By the Fukushima Daiichi nuclear disaster, substantial amounts of radioactive material, that is estimated about 770 thousand terabecquerel(TBq), was released. In accordance with the Act on Special Measures concerning the Handling of Environment Pollution by Radioactive Materials Discharged by the Nuclear Power Station Accident Associated with the Tohoku District – Off the Pacific Ocean Earthquake that Occurred on March 11, 2011, decontamination area is divided into two areas. In one area decontamination is conducted by Japanese government, and in other area it is conducted by local governments. Gathered waste contaminated with radioactive materials is planned to be carried into ISF(Interim Storage Facility) or burned by an incinerator at local government. But they are not almost performed by opposition by local residents. Now almost of gathered waste is stored in temporal space, so effective utilization of space is desperately required. It is considered that Biocoke having characteristic of a high density and poor reactivity is one of the effective downsizing technologies. In this study, the biocoke manufacturing unit suitable for work in the field is designed and field test is carried out.
