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A B S T R A C TManganese-coated sand (MCS) and manganese-coated sericite (MCSe) were prepared at pH 4 and 9 (MCS4, MCS9, MCSe4 and MCSe9) and applied in the treatment of wastewater containing soluble Mn 2+ in batch experiments under various pHs. The amount of Mn 2+ adsorbed by manganese-coated solids increased as the solution pH increased from pH 4 to 11. In order to compare Mn 2+ sorption onto manganese-coated solids in the presence of hypochlorite, 4 mg/L of NaClO was added into Mn 2+ solution. It was observed that the presence of sodium hypochlorite dose significantly enhanced the uptake of Mn 2+ from aqueous solutions for the entire pH range studied i.e., pH 4.0 to 11.0. In adsorption isotherm experiment, the results were fitted reasonably well for the Freundlich equation. Mn 2+ breakthrough time in the effluent from both MCS and MCSe columns in the presence of hypochlorite was greatly enhanced. Among these manganese-coated solids, MCSe4 showed the highest adsorption capacity. Therefore, MCSe4 was identified as a better adsorbent and filter material for the treatment of wastewaters containing Mn 2+ .