Changes in the status of home appliances discharged from household non-burnable garbage in Fukuoka City

Abstract

In Fukuoka City, household non-burnable garbage is collected from individual houses once a month. Household non-burnable garbage that can be collected includes metalware, glass, porcelain and ceramics, gardening soil, and small home appliances. Waste Testing & Research Center is investigating the current state of disposal of recyclable materials and materials containing rare metals in order to build the Sound Material-Cycle Society in the future. In this study, we analyzed the composition of household non-burnable garbage from 2005 to 2022, as well as the trends in discharge over time for home appliances, the amount of which has been increasing in recent years. As a result, regarding changes in the composition of household non-combustible garbage, it was found that discharge of metals increased. On the other hand, discharge of glass were thought to have decreased due to domestic production. When analyzing the regional characteristics of home appliances, it was found that the number of electronic devices ``less than 25 cm x 10 cm'' tends to be higher in areas where the age group is younger and the number of people per household is smaller.