Mine waters originating from active or closed copper mines contain copper ions sometimes
in a considerable concentration (≤ 1gdm-3) usually associated with an equivalent or even
twice higher concentration of Fe2+/Fe3+ ions as a consequence of bacterial degradation of
sulphide copper and iron minerals. The presence of other heavy metals (Mn, Bi, Cd, Zn,....)
in these waters depends on the ore body mineralization and their concentration is less than
the concentration of copper or iron ions and does not exceed few ppms. Mine waters are as …