South Africa is facing a daunting task in rectifying the legacy of long-standing mine water seepage into worked-out mining areas. The contact of this ingress water with the freshly exposed rock creates water with a high concentration of dissolved salts and in some cases heavy metals.

The now polluted water, or mine-impacted water (MIW), is a major issue, as discharge into the surrounding environment results in pollution of our natural water sources. The management of this MIW requires sophisticated and diverse actions ranging from reducing ingress to treating the water prior to discharge into the environment.

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