Global Engineering Course for Development, Environment, and Society, Tokyo Institute of Technology, G5-601, Suzukake, 4259, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Department of Civil Engineering, Fukuoka University, 8 Chome-19-１ Nanakuma, Jonan Ward, Fukuoka, Fukuoka Prefecture 814-0133, Japan.
Waste Manag. 2019 Jul 1;94:58-67. doi: 10.1016/j.wasman.2019.05.039. Epub 2019 May 30.
This study investigated the effects of setting conditions of trash bins on waste collection, separation efficiency, and incorrect disposal. Tested trash bins are for combustible wastes, PET bottles, cans, and glass bottles. Monitoring results were analyzed by statistical tests to distinguish real effects and experimental errors. The distance to trash bins along walking path gave no significant effects on waste collection and the others. On the other hand, when the distance was out of walking path, its increase significantly decreased waste collection of combustible wastes. In contrast, the distance gave no significant effect on separation efficiency and foreign waste percentage. It was suggested that threshold distance that affects waste disposal behaviors is between 8 and 410 m. When trash bins were set separately, it affected the motivation of waste separations. Separated setting of combustible waste and PET bottle trash bins in the opposite side of the original position significantly decreased separation efficiencies of these wastes. Because no significant effect was found on separation efficiency of other wastes whose trash bins were set in the original position, additional 3 m distance to the opposite side might exceed the threshold distance and have caused low separation efficiencies. The preference of trash bin arrangement gave no significant effect on waste collection and the others excluding separation efficiency of can. These results suggest that appropriate location of trash bins can improve waste collection and waste separation. It might be useful for waste management in public areas with high population density like shopping mall.
本研究旨在探讨垃圾桶设置条件对垃圾收集、分离效率和错误处理的影响。测试的垃圾桶用于可燃废物、PET 瓶、易拉罐和玻璃瓶。通过统计检验分析监测结果，以区分真实效果和实验误差。沿步行道的垃圾桶距离对垃圾收集和其他因素没有显著影响。另一方面，当距离超出步行道时，其增加会显著降低可燃废物的收集量。相比之下，距离对分离效率和外来废物百分比没有显著影响。建议影响废物处理行为的阈值距离在 8 至 410 米之间。当垃圾桶分开设置时，会影响废物分离的动机。将可燃废物和 PET 瓶垃圾桶分别设置在原始位置的对面，会显著降低这些废物的分离效率。由于原始位置设置垃圾桶对其他废物的分离效率没有显著影响，因此增加到对面 3 米的距离可能超过了阈值距离，导致分离效率较低。垃圾桶布置的偏好对垃圾收集和其他因素（易拉罐除外的分离效率）没有显著影响。这些结果表明，适当的垃圾桶位置可以提高垃圾收集和废物分离效率。对于购物中心等人口密度较高的公共场所的废物管理可能会很有用。
