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The performance of the column experiment for the removal of arsenic from groundwater by using the method of adsorption using hydrated mixed trivalent Fe-Al oxide as adsorbent in the agglomerated nanoparticle form was explored. Efficiency of the adsorbent was scrutinized by carrying out the experiment with field groundwater sample, spiked with arsenic solution of a particular concentration at pH 7.5 and 30 oC at variable experimental conditions. For characterization, FTIR was done for the mixed binary oxide, pure Fe2O3 and Al2O3. Two breakthrough curves were plotted by varying the bed-depth of the adsorbent and the outflow rate to ascertain the condition for maximal scope of adsorption. The kinetic parameters from the breakthrough curves were evaluated using Thomas and Adams-Bohart model analyses. The result of the column study showed that, the adsorbent performed efficiently as a cost-effective scavenger of toxic arsenic from groundwater.

Removal of Arsenic Using Hydrated Mixed Trivalent Iron-Aluminum Oxide Adsorbent: Prediction of Column Performance