In order to understand the natural attenuation of arsenic and its mechanisms in the mining environment,water and sediment samples collected from the stream system of a high-arsenic coal mining area in Xingren County were analyzed.

Aimed at arsenic pollution and the natural attenuated of arsenic in the High-Arsenic coal mining area in Xingren,the paper discusses iron-arsenic natural attenuation system and sulfur-arsnic natural attenuation system in the acidic water,respectively,and discusses the process of iron-arsenic natural attenuation system by chemical kinetics.

On the natural purification of the water in offtake;