矿山水环境中As的迁移转化及其影响因素研究综述

Studies on the Migrating and Transforming of Arsenic and Its Influencing Factors In Water Environment of Mines——A Review

矿山开发引起的重金属污染是人们对资源利用过程中的主要环境问题之一。矿山酸性废水(AMD)是大多数重金属的重要载体,砷在水环境中表现出复杂的地球化学性质,不同形态的砷在矿山水环境中的迁移和富集及其相互作用受到许多物理化学因素的制约,并产生毒害程度不同的环境效应。本文通过综述矿山水环境中As的形态转化、释放迁移及其影响因素的研究现状,探讨As在AMD中的地球化学特征。

Heavy metals contamination caused by mining exploration is one of the main environmental problems in the process of using resources. Acid mine drainage （AMD） is an important carrier for the most of heavy metals. Arsenic shows complicated geochemical character in water environment. Migrating and transforming of different Arsenic speciation are effected by many elements in both physical and chemical way, and thus cause toxic hazard to some extent to environment. This paper tries to approach the geochemical characteristic of arsenic in AMD through reviewing the current research on the processes of releasing, migrating and speeiation transforming of arsenic and their influencing factors.