蒙脱石在胡敏酸存在时去除土壤中重金属的研究综述

A Review on the Removal of Heavy Metals from Soil by Montmorillonite in the Presence of Humic Acid

采用吸附剂控制污染土壤中重金属的迁移和转化是目前常用的一种方法,其效率高、成本低且操作简单。蒙脱石作为一种粘土矿物,具有良好的吸附能力和稳定的物理化学性质,是土壤环境中应用最广泛的重金属固定吸附剂。但土壤中存在的腐殖酸会影响蒙脱石吸附剂的吸附性能。本文介绍了目前蒙脱石及胡敏酸吸附重金属的研究和应用进展,对指导修复重金属污染提供借鉴。

Using adsorbents to control the migration and transformation of heavy metals in contaminated soil is a commonly used method,which has high efficiency,low cost and simple operation.As a kind of clay mineral,montmorillonite has good adsorption capacity and stable physical and chemical properties.It is the most widely used heavy metal fixation adsorbent in soil environment.However,the humic acid in the soil will affect the adsorption performance of the montmorillonite adsorbent.In this paper,the research and application of montmorillonite and humic acid adsorbing heavy metals are introduced,which can provide reference for remediation of heavy metal pollution.