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The objective of this study was to evaluate the performances of iron and manganese-coated pumice from Sungai Pasak, West Sumatera, Indonesia as the adsorbents for removal of Fe (II) and Mn (II) from aqueous solutions. The effect of soaking time for iron and manganese coating was evaluated and as comparison, the adsorption of Fe (II) and Mn (II) using uncoated pumice was conducted. The experiments...