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The Pleurotus spent mushroom compost have been identified as a low-cost biosorbent for heavy metals removal. The Mn(II) ions removal from aqueous solution was conducted in a fixed-bed column. The effect of various parameters such as flow rate, bed height and initial concentration on Mn(II) ions biosorption were investigated. The results of breakthrough time, exhaustion time as well as the Mn(II) uptake and percentage of removal are highly influenced by the flow rate, bed height and the initial Mn(II) concentration. The results demonstrated that the breakthrough time and exhaustion time increased with decreases of flow rate and initial Mn(II) concentration and increased of bed height. The results of EDX confirmed that the Mn(II) ions presence on the surface of Pleurotus spent mushroom compost after biosorption process and the FTIR identified the carboxyl, hydroxyl and amide functional groups as the active binding sites for Mn(II) ions biosorption

Biosorption of Mn(II) ions from Aqueous Solution by Pleurotus Spent Mushroom Compost in a Fixed-Bed Column