중소도시 소각시설에 반입된 생활폐기물에 대한 3년간의 물리적 조성조사 = A 3-Year Survey on the Physical Composition of Household Waste into a Incineration Facility in a Small and Medium City

다국어 초록 (Multilingual Abstract)

In this study, physical composition analysis was conducted on household waste collected from the storage pit of the household waste incinerator once a month (36 times in total) for three years. The main results obtained from the survey results are as follows. According to a survey of the physical properties of household waste, plastic was the highest at 30.2%, followed by food at 26.5%, paper at 14.1%, and fiber at 9.3%. The annual difference in food and plastics is attributed to an increase in food composition ratio and a relatively decrease in plastic composition ratio in 2021, which is presumed to be due to less eating out and ordering delivery food at home due to the COVID-19 situation. Since food waste and recyclable waste are discharged separably from other wastes, it can be seen that the variation of major wastes such as plastic, food, paper, and fiber, in the household wastes subject to incineration is no difference between seasons. The average weight of one discarded mask was 5.97 ± 0.94 g. The weight ratio of incineration standard garbage bags among household wastes was 1.33 ± 0.46%. The low calorific value of municipal solid waste estimated by the average physical composition was 3,762 kcal/kg, showing a result almost similar to the low calorific value of waste generated in the household part of the fifth waste statistical survey of Korea Ministry of Environment.