ABSTRACT
Activated alumina (AA) is a commonly utilized adsorbent for removing arsenic from water. Various activated alumina showed different arsenic removal capacities depending upon the preparation methods. Amongst those, Mesoprous Alumina (MA) with a large surface area (307 m2/g) and uniform pore size (3.5 nm) and a sponge like interlinked pore system developed through a posthydrolysis method show an arsenate uptake capacity of 121 mg/g (Kim et al. 2004). The Langmuir isotherm predicted arsenic uptake capacity of MA is reported to be 7 times higher than conventional AA (concentration range at which equilibrium study was conducted = 7.5-1500 mg/L).
