General conclusions: The environmental stability of slags depends on both, their bulk
chemistry and mineralogy. However, mineral phases harbouring the metals are the key
players in metal leachability intensity. For, this reason consideration of individual slags
behaviour is important for preventing environmental contamination and should be regarded as
priority branch of sustainable slag management. Optimization of operating parameters for
bioleaching following development of industrial scale technology is an incentive scheme for
future management of Cu-metallurgical slags.
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