干旱区生态环境知识资源中心

Both surface water and groundwater around the open pit flow down to the pit,while drainage of the water may cause pollution of surface water and groundwater and decrease of ground water tables,which has a negative influence on the vulnerable ecological environment of Shendong mining area. It is necessary to exploit a hydrops purification technique in open pit that could lead to a positive evolution of desert. Based on the climate characteristics and the open pit conditions, the in-situ purification technique and treatment process of open pit hydrops was presented with the application of natural oxidation pond as the main method,which had been high-effectively applied into Majiata open pit mine and is of great theoretical and practical values to the green mining technology with similar conditions.