Document Type : Research Paper
Author
Department of Civil Engineering, University of Birjand, Birjand, Iran
Abstract
This study evaluates the efficiency of Fenton and Microwave-Fenton processes in dye removal from wastewater. To examine the impact of parameters such as pH, dye concentration, Fe2+, and H2O2 on the efficiency of color and COD removal, these variables were altered during the experiments. The mechanism of dye molecule removal was analyzed through UV-Vis spectroscopy. Data analysis revealed that the microwave-enhanced Fenton process is more efficient than the traditional Fenton process. Specifically, the dye removal rate in the microwave-enhanced Fenton process after 4 minutes was equivalent to that in the traditional Fenton process after 80 minutes. The optimal conditions in the microwave-enhanced Fenton process included an initial dye concentration of 300 mg/L, a pH of 5.3, an Fe2+ concentration of 20 mg/L, and an H2O2 concentration of 100 mg/L. Under these conditions, a COD reduction of up to 85% and a dye removal of over 98% were observed. The findings suggest that the Microwave-Fenton process can effectively reduce color pollutants and improve the quality of industrial wastewater. This method offers a high reaction speed and remarkable efficiency in various treatment conditions, making it a suitable solution for treating wastewater with high dye loads.
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