焦化厂土壤重金属污染影响因素研究进展

Research Progress on Influencing Factors of Heavy Metal Pollution in Soil of Coking Plant

系统归纳了影响焦化厂土壤重金属污染的主要因素,从焦化生产工艺、自然因素、重金属元素赋存形态等3个方面进行概述:焦化生产的备煤运输、炼焦生产、煤气净化以及化工品回收等环节均会释放重金属,并以多种形式进入场地;受风、降水等自然因素的影响,实现迁移、扩散,并最终稳定存在于土壤中,而土壤性质和重金属赋存形态会影响重金属在土壤中的生物毒性和迁移能力。系统分析焦化厂土壤重金属污染的影响因素,有助于分析焦化厂重金属污染现状,同时对焦化厂污染修复方式的选择具有指导意义。

This paper systematically summarizes the influencing factors of the heavy metal pollution in the coking plant, and analyzes the main influencing factors in three aspects. Coking production engineering, natural factors and the occurrence of heavy metals in soil. Heavy metals enter the coking site through different forms in coal preparation transportation, coking production, gas purification and chemical product recovery of coking production. Then heavy metals migrate and diffuse under the influence of natural factors such as wind and precipitation, and eventually stabilize in soil. Systematic analysis of the influencing factors of heavy metal pollution in soil of coking plant can not only help to analyze the current situation of heavy metal pollution in coking plants, but also help to select appropriate remediation methods for the heavy metal pollution in coking plants.