Efficient Removal of Arsenic Using Magnetic Multi-Granule Nanoclusters

Magnetic multi-granule nanoclusters (MGNCs) were investigated as an inexpensive means to effectivelyremove arsenic from aqueous environment, particularly groundwater sources consumed by humans. Varioussize MGNCs were examined to determin e both their capacity and efficiency for arsenic adsorption for differentinitial arsenic concentrations. The MGNCs showed highly efficient arsenic adsorption characteristics, therebymeeting the allowable safety limit of 10 g/L (ppb), prescribed by the Worl d Health Organization (WHO), andconfirming that 0.4 g and 0.6 g of MGNCs were sufficient to remove 0.5 mg/L and 1.0 mg/L of arsenate(AsO