铜冶炼过程含重金属粉尘沉降对土壤环境的影响预测

Prediction of the Influence of Heavy Metal Dust Deposition on Soil Environment During Copper Smelting

有色冶炼生产过程中的废气涉及重金属粉尘,选择典型的铜冶炼行业对土壤环境的影响进行预测。铜冶炼行业产生的废气含有Pb、As、Hg、Cd等重金属,预测范围选择某铜冶炼企业的占地面积以及占地面积外扩1 km的区域,计算正常工况下大气沉降和雨水入渗两种途径对土壤重金属输入量,由预测结果可知,废气排放的Pb、As、Hg、Cd在土壤中10 a预测贡献值较小。

The waste gas in the process of non-ferrous smelting involves heavy metal dust.The influence of typical copper smelting industry on soil environment was predicted.The waste gas produced by copper smelting industry contains Pb,As,Hg,Cd and other heavy metals.The prediction range is selected as the area occupied by a copper smelting enterprise and the area expanded by 1 km,and the input of heavy metals into soil by atmospheric sedimentation and rainwater infiltration under normal working conditions is calculated.The predicted contribution of Pb,As,Hg and Cd to soil in 10 years is small.