城市矿产环境效益分析

Analysis of Urban Mining's Environmental Benefits

针对我国传统的粗放式经济发展模式不利于可持续发展的问题,应用机会成本法等对城市矿产的环境效益进行了初步估算。从固体废弃物减量化带来的环境效益、避免开发自然资源带来的环境效益、避免加工自然资源带来的环境效益,以及再生资源转化过程中的环境成本4个方面对城市矿产的环境效益进行了量化,并以某城市矿产示范试点基地作为分析对象进行量化分析,使城市矿产发展的环境净效益得到直接的体现。

Aiming at the problem that extensive economic development model goes against the sustain- able development, this paper used the method of opportunity cost to preliminarily estimate the environ- mental benefit of urban mining. The environmental benefit of urban mining was quantized from four aspects of solid waste reduction, avoiding exploiting nature resource, avoiding machining nature re- source and the environmental costs of renewable resources conversion process. And then, we took the quantitative analysis of demonstration pilot project of urban mining in a city to embody the environ- mental net benefit of urban mining development.