Abstract
This study developed scenarios of regional circulation systems considering existing biogas plants for kitchen waste and new RDF plants for papers, plastics, textiles and woods (wastes for fuel) in Soya region, Hokkaido, which includes 5 municipalities such as Wakkanai city, Rishiri and Rebun islands, etc. The scenarios were compared in costs, recycling rate and the amount of landfilled waste with the current situation. As a result, a regional recirculation scenario, where the kitchen waste in Rishiri and Rebun islands is transported by container and ferry to the existing biogas plant in Wakkanai city, and the wastes for fuels in whole Soya region are transported by container to a new centralized RDF plant in Wakkanai city and the produced RDF is used as a heat source at the existing paper factory in Asahikawa city, was evaluated in terms of costs, recycling rate, the amount of landfilled waste and feasibility in Soya region.
