摘 要伴随着我国经济的迅猛进展，城市化进程的不断加快，城市中随意丢弃的废品也越来越多，带来了众多的环境和社会问题。废旧物品的随意丢弃不但对城市的环境，生态造成严重污染，而且造成了严重的资源浪费，影响社会经济水平的提高，如何有效的处理城市废品，实现资源的循环再利用，已成为一个世界性的课题。在我国此问题尤为突出。城市废品回收物流体系的构建问题是一个关系到经济和社会效益的问题。本文从城市废品回收物流网络的相关概念入手，介绍了我国城市废品回收的模式现状，找出了存在的问题，设计出了合理的城市废品回收物流的流程。运用Witness 这款数值仿真软件，进行了计算机模型的仿真，并在此基础上进行了系统优化。关键词：回收物流，城市废品，Witness ，仿真优化AbstractWith the rapid development of economy,urbanization is accelerating，more and more waste is discarded in the city,causing many problems of the social and environment ．Municipal solid waste which has not only caused serious pollution of the city's ecology and health，but also has affected the city’s economic development ， has become a bottleneck of restricting the rapid development of the city． In China ， the waste recycling rate is relatively low,a large number of recyclable resources ate discarded，causing serious waste of resources，it is necessary to recycle the resources ．Thedesign of waste logistics network is a matter of economic and social benefits ． This article starts with the related concepts of the logistics network for municipal wastage recovery work and through the introduction to the present situation of municipal wastage recovery model, try to find out the existing problem and design a reasonable municipal wastage recovery process. Usingthe numerical simulation software WITNESS, thispapersimulatedthecomputermodel,andthesystemhasbeenoptimizedbasedonit.Keywords：recycling logistics, urban waste, Witness, optimization目 录前言11 绪论21.1 讨论背景21.2 讨论意义...
