 |
|
|||
|
|
|
|||
 |
|
Review
paper Role of Microorganisms in Mining:
Generation of Acid Rock Drainage and Its Mitigation and Treatment Natural oxidation
of sulphide mineral wastes during their disposal and storage at the mining sites may
result in generation of acid rock drainage (ARD) that may contain high acidity and high
concentrations of dissolved metals and sulphates. Due to its chemical composition, ARD
poses potential harm to the environment and significant challenges to many mining
industries requiring development and application of effective ARD management plans to the
mining sites during the operational and post-closure periods. If the generation of ARD
cannot be prevented or controlled, it must be collected and treated to eliminate acidity
and reduce the concentration of heavy metals and suspended solids before its release to
the environment.
|
|
