有色金属冶炼过程污染风险预警指标体系的设计

Design of Early-Warning Index System for Pollution Risk of Nonferrous Metal Smelting Process

以株洲冶炼集团为示范点,以DPSIR(Driver-Pressure-Status-Impact-Response)模型为指导,筛选能够从本质上反映有色金属冶炼过程污染风险变化的关键因素,并运用层次分析法确定各指标在满足主客观条件下的组合权重,构建有色金属冶炼过程污染预警指标体系。结果表明,在指标集中,对目标影响较大的指标主要集中在优控污染物状态与污染对象压力指标两大区域,废渣重金属含量指标D17对目标层的影响最大,其次为土壤中各重金属的含量指标D23,而要素层C2厂区建设的各指标对目标的影响最小。

With Zhuzhou Smelter Group as demonstration site and DPSIR （Driver-Presure-Status-Impact- Response） model as a guide, key factors, which can essentially reflect pollution risk variation for nonfer- rous metal smelting process, were selected. The analytic hierarchy process was used to determine each in- dex＇s combination weight which met the subjective and objective conditions, and to construct the early pol- lution warning index system of nonferrous metal smelting process. The results show that the indexes exer- ting significant impact on target include the optimal control of pollutants and polluted object pressure in- dex. Index D17 has the biggest influence, followed by index D2a, and each index of C2 has minimal impact on the target.