Organics deterioration from aqueous solutions by electro-Fenton process

International Conference on Materials Engineering and Science

Abbas, Z.I.^1 ; Abbas, A.S.^1

Chemical Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq^1

关键词: Chemical oxygen demand removals;    Current efficiency;    Electro-Fenton process;    Operating condition;    Operating parameters;    Phenolic compounds;    Specific power consumption;    Zero order kinetics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012147/pdf
DOI  :  10.1088/1757-899X/454/1/012147

来源: IOP

【 摘 要 】

A MnO2-graphite electrode was used in the treatment of aqueous solution from phenolic compounds by an electro-Fenton process. The effect of operating conditions, i.e. current density and externally added Fe2+, on the efficiency of the electro-Fenton Process performance was investigated. The performance of the electro-Fenton process was estimated by the chemical oxygen demand (COD) removal percentage from the treated solution after 6 h elector-oxidation at 30 °C. Significantly, the removal increased with increasing the applied current density and Fe2+ added, while the maximum removal percentage was achieved when 1mM Fe2+ added and 8mA/cm2 applied. Kinetic study of COD deterioration from the treated aqueous solution at the applied values of the operating parameters was carried out and the results were indicated that the COD decay over the MnO2-graphite anode by electro-Fenton process followed zero order kinetics. Current efficiency and specific power consumption of the process were also predicted.