Study on using modified laterite in the heterogeneous Fenton process for removing dye compound

Abstract

In this work, was modified by iron (III) sulfate (Lat-Fe), and it was used in heterogeneous Fenton for the removal of Reactive Yellow 160 dye (RY 160). Properties of chemical composition, surface morphology and specific surface area of modified were characterized by Energy X-ray spectroscopy (EDX), scanning electron microscopes (SEM) and BET method and that was assessed effectively to apply in the heterogeneous Fenton process. Experimental investigations about conditions such as pH, H₂O₂ concentration, and modified materials were conducted to look for the suitable conditions for removing dye compound by Fenton process. Studied results showed that modified by procedure without iron Fe³⁺ had not catalyzed activation in Fenton process. However, using modified by iron (III) sulfate (Lat-Fe) get good results in the heterogeneous Fenton process for removing Reactive Yellow 160 dye. Removing Reactive Yellow 160 dye (RY 160) with initial concentration of 50ppm with investigated optimal conditions of Lat-Fe: 1,25g/L, H₂O₂ 2,45 , pH 7 at 30^oC get 70% of removal efficiency in 120 minutes.