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Tuesday, 13 June 2017

Possible Mine Pollution in a Metal Mine

In an event when rain fall, water seepage cause subsidence of overburden materials. Rain water reacts with acid forming rocks and generate acid mine drainage (AMD). The ionized water flows with lose particles of materials known to be sediment runoff which eventually becomes the tributary of a nearby stream. Consequently the pH is reduced at the nearby stream.

Sometimes structures of facilities fail and waste water is released into the environment without proper treatment and this is a concern for environment pollution along the riverine inhabitants. 

In sulfide mines the possible pollution are:
  • Acid drainage from mine adit
  • Surface exposure to atmosphere and moisture
  • Tailing dam gradually eroded by river water
  • Bursting of waste rock/tailing dam
  • collapse of abandoned dressing plant.
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