Removal of Abamectin from wastewater by iron-modified kaolin

The development of new photochemical methods for the decontamination of wastewater containing significant concentrations of aromatic pesticides is described. The chemical method which used in this work is based on the Fenton process. In this paper, kaolin was modified by Fe2+ ion exchange. The obtained catalyst characterized by XRD, FT-IR, FESEM and EDX technique. The catalytic activity of catalyst investigated in the removal of abamectin. The effect of several parameters, including pesticide contamination concentration, pH, catalyst amount and H2O2 concentration was studied in the removal of contamination. COD analysis proved the mineralization of abamectin. Pseudo-first order kinetic suggested for the degradation of pesticide. The results of degradation showed the modified catalyst is an effective photocatalyst for removal of abamectin from wastewater.