Abstract:
With the increasing pollution of heavy metals in soil, non-metallic natural mineral adsorbents have been applied in soil remediation because of their unique advantages of low price and no secondary pollution.On the basis of introducing the present situation of soil heavy metal pollution and the adsorption properties of natural mineral materials in China, we review the application and development of this kind of adsorption materials.The permeable reactive barrier(PRB), and geochemical barrier (GB) technique using the adsorbed material as the reaction medium is emphasized, and the combined remediation of soil and water is a better method.Some prospects for the application of natural mineral adsorption materials in remediation of soil heavy metal pollution were put forward, including adsorption and transformation, influence conditions, microcosmic comparison, multi-technology combination and so on.