Abstract

• This research work is focused on the determination of optimum conditions for the removal of arsenic and lead toxic elements in model solutions by using Kyauk Pataung (KPT) kaolin sample. In this research, removal of arsenic and lead ions from the model solutions using KPT kaolin was studied by the effect of contact time (0.5-24 h), effect of dosage (0.5- 3.5 g), effect of pH (4-9), metal concentration (50-800 ppm) at room temperature. The KPT kaolin sample was observed to remove 97.29 % of arsenic (100 ppm of initial concentration) using 2 g of KPT kaolin after 12 h contact time at pH 7, whereas 95.08 % of lead could be removed under the above conditions at pH 5. The amount of arsenic and lead remained in the solutions after treating with KPT kaolin were determined by using AAS technique. The arsenic and lead loaded kaolin sample were characterized by EDXRF, SEM and FT IR analyses.