Waste discharge modeling of cleaning up waste after disaster and waste collection strategies: focusing on flood disaster in Mabi town, Kurashiki city

Abstract

Due to the heavy rain that hit western Japan in July 2018, a large-scale flood occurred in Manabi-cho, Kurashiki city on the 7th, which caused about 440,000 tons of flooded waste. When the cleaning of houses starts after the disaster, they are discharged all at once in the area, which causes a shortage of storage space and waiting for garbage collection. In previous research 1), it was found that if the collection of waste is delayed, the storage space becomes full, which causes illegal discharge. In the event of a disaster, it is necessary to smoothly collect and remove disaster waste from the disaster area, and for that purpose, it is important to first understand the characteristics of the waste discharge time of clean-up waste. In this study, we conducted a questionnaire survey on the victims of Mabi-machi, Kurashiki City, clarified the emission characteristics and emission timing of each type of cleanup waste, and created an emission model. Then, for the waste discharge from the target area, a collection strategy was established and a collection simulation was conducted.