Abstract

Jayita Dutta

DOI : http://dx.doi.org/10.13005/ojc/360311

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 ⁰C 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.

Arsenic; Breakthrough Curves; Column Experiment; Hetero-Oxide Adsorbent

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