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A REVIEW OF THE IMPLICATIONS AND CHALLENGES OF MANGANESE REMOVAL FROM MINE DRAINAGE
Neculita, C.M. and E. Rosa.
Chemosphere 214:491-510(2019)

Beneficial and adverse effects of Mn on ecosystems and human health and a comparison of background and mine effluents Mn contents are summarized, stressing the need for Mn removal from mine drainage. Several technical options to address Mn contamination in acid and neutral mine drainage and the challenges associated with Mn removal are subsequently discussed. This paper presents up-to-date knowledge on the available physicochemical and biological processes deemed operative in Mn removal during mine drainage treatment and their limitations considering the distinctive behavior of Mn. The discussion is extended to passive treatment systems, highlighting both design criteria and operational requirements, as well as the factors that influence Mn removal efficiency. New perspectives on future research and development needs are identified to address the challenges in Mn removal during mine drainage treatment.



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