攀钢冶炼废渣中重金属地球化学特征及其环境效应

Geochemical Characteristics of Heavy Metal in Smelting Waste Residue Produced by Panzhihua Steelworks and Its Enviromental Effect

为治理钢铁冶炼产生的废渣对环境造成的污染,通过对废矿渣堆以及周围土壤中重金属元素的地球化学特征分析,研究了它对附近环境造成破坏的影响因素及污染程度。结果表明:(1)冶炼废渣中重金属元素趋向于富集在比表面积大的颗粒上,易于进入大气中产生环境污染;(2)矿渣堆对环境的破坏以降尘为主要形式,与距离及地形因素呈一定相关;(3)重金属向地表深部迁移能力存在着一定的极限,但各种重金属元素在土壤中的分布存在差异;(4)从区域内污染负荷指数来看,废渣堆附近区域为强污染环境,污染程度随远离废渣堆而减小。

Through analysing the geochemical characteristics of heavy metal in the waste slag heap from Panzhihua steelworks and heavy metal elements in soil around it, research the affecting factors and pollution degree in the The result shows that： damage surface of particles, and （2） Slag heap damages terrain ; （3） sorts of heavy be seen that, decrease from to environment were researche, providing premise for future repairmen. （1） Heavy metal elements in smelting slag are intend to enrichment in high they are much easier to enter the atmosphere to contaminate the environment; to the environment as the dustfall, and it is related to certain distance and Heavy metal elements migrating ability from surface to deep have certain limits, but all metal elements in the distribution of soil are different. （4） Through the PLIzone, it may areas around the slag heap are high contaminative environment, the level of contamination near to far.