粘土矿物修复土壤重金属污染的研究进展

Research Progress of Remedying the Heavy Metal Contaminated Soils with Clay Minerals

随着工业和生活废弃物的排放日益增多,许多重金属污染物以多种途径进入土壤,对生态环境以及人类产生了直接或潜在危害。利用粘土矿物修复重金属污染土壤是一种非常有效的技术,已经成为研究的热点。本文综述了粘土矿物修复重金属污染土壤的作用机理、修复效果及其影响因素,介绍了提高粘土矿物修复效果的的改性处理方法和改性剂,并对粘土矿物修复土壤中重金属污染的研究进行了展望。

With the increasing of the industrial and subsistent wastes, many heavy metal contaminations entered into soils by many ways and induced direct or indirect harm to environment and humanity. Remedying the heavy metal contaminated soils with clay minerals is one of the most effective techniques. Many scientists have paid close attention to this research domain. In this paper, the remediation mechanism of clay minerals, its effect on heavy metal contaminated soils, and its influenced factors were reviewed. The improved methods and improved agents to increase the effects of clay minerals were introduced. The research prospect of remedying contaminated soils with clay minerals was also put forward.