Removal of arsenic from drinking water by the electrocoagulation using Fe and Al electrodes

► Removal percentages of arsenic from drinking water at optimum operating conditions in electrocoagulation process were 93.5% for Fe electrode and 95.7% for Al electrode. ► Operating costs at the optimum conditions were 0.020 € m−3 for Fe and 0.017 € m−3 for Al electrodes. ► Surface topography of the solid particles at Fe/Al electrodes was analyzed with scanning electron microscope. ► The adsorption of arsenic followed pseudo second-order adsorption model.