Chemical oxidation of methylene blue using a Fenton-like reaction

摘要

Oxidation by Fenton-like reactions is proven and economically feasible process for destruction of a variety of hazardous pollutants in wastewater. We report herein the oxidation of methylene blue, a basic dye of thiazine series using a Fenton-like reaction at normal laboratory temperature and at atmospheric pressure. The effects of different parameters like the initial concentrations of dye, Fe~2+, and HK_2O_2, pH of the solution, reaction temperature, and added electrolytes on the oxidation of The dye present in dilute aqueous solution in the concentration range (3.13-9.39)×10~-5 mol dm~-3 (10-30 mgl~-1) have been assessed.