Impact of mine pit lake on metal mobility in groundwater

摘要: Open pit mines are potential source of metal contamination. Three types open mines, i.e. copper, quartzite and granite were selected to understand the mobility behaviour metals. Metal contamination due abandoned copper (Average Cu = 64.57 ± 90 µg/L) is observed more comparative Cu = 20.42 ± 34.39 µg/L) Cu = 9.67 ± 7.94 µg/L). Acid mine drainage (AMD) from result in dissolution metals contaminates groundwater downstream direction. Correlation used for assessment confirms influence anthropogenic or on concentration groundwater. It that impact compared tailings overburden dumps. Dissolution precipitation process control abundance Precipitation dominates with distance results decrease concentration. also self-neutralisation self-attenuation capacity aquifer. The study recommends restoration their natural conditions avoid downstream.