Abstract
In this paper we evaluate the facility for recycling biomass in Hita City Oita Prefecture from economical and environmental viewpoints. We calculate the volume of greenhouse gas emission in operating by using Life Cycle Assessment in operating this facility. This paper also clears the relationship between the volume of greenhouse gas emission and running cost and indicates the possibility to improve financial condition. The system to recycle biomass in Hita City discharges less greenhouse gas than incineration plant and sewage works. It is shown that the effort of Hita City has environmental and economical significant.
