Adsorptive Removal of Manganese from Industrial and Mining Wastewater

Improperdisposal of toxic wastes from mining and chemical process industries can yield higher manganese concentrations well above those normally found in environmental water. Consequently, this paper starts with a review of technologies for manganese removal from contaminated wastewater. Various wastewater treatment processes are discussed and compared. Special attention is given to adsorption technology wherein performance of a variety of adsorbents are analysed. Batch adsorption capacity at equilibrium is used as performance indicator. It is revealed that modified or surface re-engineered adsorbents and nanostructured materials offer the best option for manganese removal from environmental water.