We established the system to evaluate 1) Flow diagram of waste treatment, 2) Cost of waste treatment and 3) Volume of CO_2 emission comprehensively based on the published data and documents on the municipal waste treatment and the containers and packaging recycle in each prefecture and municipality available from various official bodies. By using this system, we studied the two cases of 1) Existing system and 2) Conversion of waste plastics into fuel + Melting treatment system. We concluded that the conversion of waste plastics into fuel for melting treatment enables us to realize a rational waste treatment system which minimizes landfill disposal and doesn't change the waste treatment cost and the CO_2 emission volume so mush.
