Effects of waste management measures by municipalities using the national model for municipal waste flow

Abstract

In order to further improve the material flow index of the whole of Japan, it is necessary to consider and implement additional measures while grasping the measure effect of each municipality. The authors have built a nationwide model of municipal waste flow that can assess the effects of measures by municipality, using data from the survey on actual states of municipal waste management. In this paper, using the model, we set two scenarios, BaU and measures, as in the previous report, and estimated the emission per capita and cyclical use rate by municipality. As for the level of the measure scenario, we set the maximum value that can be introduced for items that are required to be strengthened, set the extension value of the current efforts for the others, and made some corrections from the previous report. In the analysis, four population segments were set, and the average value and distribution of the indicators in each category were estimated. As a result, especially in the case of cyclical use rate, in many municipalities, the measure scenario shows an effect more clearly than the BaU scenario, which is more remarkable in the segments with a smaller population.