Electrochemical degradation of scarlet red dye from aqueous environment by titanium-based dimensionally stable anodes with SS electrodes

E Gomathi,B Balraj,K Kumaraguru

doi:10.1007/s13765-018-0357-5

Abstract

Textile effluents are toxic and carcinogenic materials that exist in the aquatic environment. In this study, the degradation efficiency of commercially available scarlet red dye investigated on TSA-SS Electro Fenton process (EFP) was reported. It is of great interest in the field of environmental engineering to remove dyes from aquatic environment. The influence of operating parameters such as pH (2–9), current density (0.1–0.5 mA/cm2), concentration of dye (0.1–0.5 g/L), H2O2 (0.1–0.5 g/L) concentration and Fe2+ concentration (0.01–0.03 g/L) were analyzed by batch system. The optimum degradation conditions were determined as pH—3, current density—0.4 mA/cm2, concentration of dye—0.4 g/L, H2O2 concentration—0.5 g/L and Fe2+ concentration—0.025 g/L. These results indicated that the degradation efficiency of scarlet red dye by EFP depends on solution pH and Fenton reagent concentration and a low pH value was favorable for the dye degradation. It has been demonstrated that more than 94% dye removal was obtained at 50 min. Electro Fenton process was also investigated by cyclic voltammetry technologies.

Highlights

The pot ability of water is affected by various factors which include wastewater from industries
Electrolysis was performed in a 1000-ml capacity cylindrical beaker with two electrodes
The electrodes were partially immersed in a beaker that contains the synthetic solution 0.1 mM KCl chosen as the supporting electrolyte to maintain the current density [9]

Summary

Introduction

The pot ability of water is affected by various factors which include wastewater from industries. Keywords Electro Fenton process Á Dye degradation Á TSA-SS electrode & K. Concentration had to be maintained for effective degradation of the solution.

Results

Conclusion