Faced with the recent copper emission data from Løkken, The Norwegian Directorate of Mining has started a search for other low-cost solutions which could be employed if the situation continues to deteriorate. One interesting alternative lies in mixing the mine water with naturally occurring minerals in order to remove copper through the actions of partial neutralisation and adsorption. The aim is to remove copper from solution without simultaneously removing substantial amounts of iron, thus avoiding the problems associated with handling and depositing huge volumes of copper contaminated iron sludge. The problem is caused by the very low solubility of ferric iron. In a system where the iron is initially present as ferrous iron, as is the case for the mine water at Løkken, the rate of oxidation to its ferric form will increase exponentially with increasing pH once pH exceeds pH 4 (Singer and Stumm, 1970). Hence, the potential of adsorptive removal, when compared with hydroxide precipitation, lies in the fact that retention can be achieved at a significantly lower pH.