%0 Conference Paper %A Khan, T. %A Chaudhuri, M. %D 2013 %F scholars:3960 %I Institute of Physics Publishing %K Groundwater, Arsenate adsorption; Batch adsorption tests; Contact time; Equilibrium adsorption; Filter mediums; Freundlich constants; Freundlich isotherm model; Muffle furnaces, Adsorption, adsorption; aqueous solution; arsenate; filter; groundwater; numerical model; pH; phase equilibrium; rice; water quality %N 1 %R 10.1088/1755-1315/16/1/012095 %T Adsorption of arsenate from aqueous solution by rice husk-based adsorbent %U https://khub.utp.edu.my/scholars/3960/ %V 16 %X Rice husk-based adsorbent (RHBA) was prepared by burning rice husk in a muffle furnace at 400°C for 4 h and adsorption of arsenate by the RHBA from aqueous solution was examined. Batch adsorption test showed that extent of arsenate adsorption depended on contact time and pH. Equilibrium adsorption was attained in 60 min, with maximum adsorption occurring at pH 7. Equilibrium adsorption data were well described by the Freundlich isotherm model. Freundlich constants Kf and 1/n were 3.62 and 2, respectively. The RHBA is effective in the adsorption of arsenate from water and is a potentially suitable filter medium for removing arsenate from groundwater at wells or in households. © Published under licence by IOP Publishing Ltd. %Z cited By 1; Conference of 26th IAHR Symposium on Hydraulic Machinery and Systems ; Conference Date: 19 August 2012 Through 23 August 2012; Conference Code:95632