Research on the sorting reclaim system of municipal solid waste based on the concept of 'cradle to cradle'

摘要

In recent years, the output of municipal solid waste (MSW) in China has been increased by 10% annually, and the traditional disposal methods, such as sanitary landfill, incineration and compost, will produce secondary pollution. In order to deal with the current predicament which presents a large number of MSW discharged, and cities are besieged by garbage, so promoting MSW sorting reclaim is very important, it can transform "waste" into new resource. China has launched some pilot projects to sort and reclaim MSW in some cities since 2000, but with little success. Firstly, the existing problems in the disposal of MSW have been summarized, then the management system of MSW sorting reclaim has been constructed according to the experience of foreign countries. At the same time, the concept of "Cradle to Cradle" which compose of MSW delivery (waste classification, design of garbage bag, collection time and design of garbage can), and utilization of MSW (different loops are designed for different wastes). Finally, the countermeasures and suggestions of promoting MSW sorting reclaim are proposed. The results have significant value for constructing "resource-conserving & environmental-friendly" society and guiding MSW sorting reclaim in China.