Benefit evaluation on the public policy for making refuse derived fuels and compost out of municipal solid waste : a case study for Nogi Town, Tochigi prefecture, Japan

摘要

Centering on the public policy of the production of refuse derived fuels(RDF) and compost in Nogi Toun, Tochigi Prefecture, Japan, an evaluation of this policy was carried out from the standpoint of garbage reduction and recycling. With respect to the reduction in amount, a theoretical model was set, upon which an empirical analysis of the effect of a reduction in the amount of waste through an analysis of the primary factor of the structure of the production of waste and its disposal was carried out. With regards to recycling, an analysis of a simulation of RDF production and the effect of the amount of water contained in the raw waste was carried out. Furthermore, an analysis was performed in relation to the Container and Packaging Recycling Law, to include the influence that things such as PET bottles and other plastics have on the production of RDF. It was indicated that the policy for the production of RDF and compost in Nogi Town, Tochigi Prefecture, had the effect of a reduction in the amount of waste due to the simultaneously implemented of a system for separate collection of combustible waste and kitchen waste. In addition, it was found that when the amount of water contained in the raw waste is high, there is a large effect on the production of RDF such as an increase in the cost of the drying process and a decrease in the amount of RDF produced.