acid mine drainage

Question 1

what are sources of acid mine drainage

Answer 1

1) the oxidation of sulphide ores in mine spoil or rocks as oxygen enters into the spaces between waste particles
2) the leaching of these metal oxides of sulphur into water which dissolves forming sulphuric acid

Question 2

what are the effects of acid mine drainage

Answer 2

1) reduced PH causes acid damage

2) increased solubility and mobility of toxic metals

Question 3

what are the controls of acid mine drainage

Answer 3

the PH of acid water can be increased by passing it through crushed limestones to neutralise the acids which will also decrease solubility of many toxic metals