Acid mine drainage (AMD) is a result of the pyrites with air and water, which passes through a series of geochemical reactions under the effect of microorganisms.

• 煤矿酸性矿井水是煤矿开采中由于硫铁矿与空气、水接触,在微生物作用下经过一系列地球化学反应产生的一种危害矿井生产、破坏生态环境的有害矿井排水。