Abstract
This study investigates removal of Lead (Pb2+) by nanoscale zerovalent iron (nZVI) in surface water under various environmental conditions. Particles size of synthesized nZVI was in the range of 35.57–49.62 nm (<100 nm) and congregated to each other. Remarkable removal of Pb2+ (k = 0.30 min−1) was observed in nZVI suspension (0.32 g/L) in 10 min, while no significant of Pb2+ removal was observed in suspension alone at neutral pH. The removal of Pb2+ was significantly dependent on the suspension pH and concentrations of Pb2+ and nZVI. Percent removal of Pb2+ significantly decreased as the concentrations of Pb2+ increased. Removal efficiency of Pb2+ decreased (49–25 %) as the pH increased from neutral to basic conditions (pH 7–9). As concentration of nZVI increased (0.06–0.10 g/L), the removal efficiency increased approximately 1.67 times (42–70 %). Experimental results from this study provide basic knowledge on the role of nZVI as a reductant to remove Pb2+ in surface water at different environment conditions.
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Heartfelt credits are addressed to UiTM, Research Intensive Faculty Grant (600-RMI/DANA 5/3/RIF (740/2012)) for the research funding.
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Iskandar, R.H.R.A., Kassim, J., Ali, M.F., Amir, A. (2016). Removal of Lead by Nanoscale Zerovalent Iron in Surfacewater. In: Yusoff, M., Hamid, N., Arshad, M., Arshad, A., Ridzuan, A., Awang, H. (eds) InCIEC 2015. Springer, Singapore. https://doi.org/10.1007/978-981-10-0155-0_7
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