Abstract
ABSTRACT Arsenite removal by aerated iron electrocoagulation process was investigated in this present study. Electrocoagulation experiments were executed in a 5L capacity rectangular tank equipped with 14 iron electrodes. Very poor arsenite removal was observed during electrocoagulation without aeration. The external addition of air enhanced the efficiency of electrocoagulation process and complete removal of arsenite was observed from its initial concentration of 1 mg/L by applying the voltage of 5V with 60 min of electrolysis. pH is not showing any significant influence in the electrocoagulation process coupled with external aeration. The sludge generated after electrocoagulation was identified with the help of, scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transforms infrared (FTIR) techniques.
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