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废旧物资的回收利用,可大大减少对矿产资源的开采利用,达到节约矿源、能源和减少环境污染的目的,其经济、社会、生态环境效益非常显著。目前,世界各种主要物资的总量中,来源于再生资源加工制成的:钢产量达到45%、铜为62%、铝为22%、铅为40%、锌为30%、纸张为35%,世界各国都把数量巨大的各种废旧物资经过回收利用,变废为宝,资源得以延续使用,这已成为各国经济、社会、环境可持续发展的重要选择。
The recycling of waste materials can greatly reduce the exploitation and utilization of mineral resources, achieve the purpose of saving mineral resources, energy and reducing environmental pollution, and its economic, social and ecological benefits are very significant. Currently, the total amount of various major commodities in the world is derived from the processing of renewable resources: 45% of steel output, 62% of copper, 22% of aluminum, 40% of lead, 30% of zinc and 35% of paper %, All the countries in the world have reused a large amount of waste materials and turned waste into treasure and their resources have been continuously used. This has become an important choice for all countries in their economic, social and environmental sustainable development.