Comparative Study on Phenolic Wastewater Treatment by Advanced Electrochemical Oxidation Processes Service Unavailable

Considering the direct and the indirect oxidation of AEOP's, the kinetic and therefore the reaction rate constant were significantly analyzed throughout the oxidation time. The phenol degradation efficiency has been investigated during the oxidation time with varied independent parameters like initial phenol concentration (۱۰۰, ۲۵۰,۵۰۰) mg/L, applied current density (۳۰, ۵۰, ۷۰) mAcm-۲ and electrolyte circulation (۶, ۹, ۱۲) L/hr. It was estimated that, for ۱۸۰ min oxidation time, ۷۰ mAcm-۲ current density, ۱۲ L/hr flowrate, and ۱۰۰ mg/L initial phenol concentration, the direct anodic oxidation achieved phenol degradation efficiency of ۷۴.۴% with graphite and ۸۳.۷% with β-PbO۲ anodes. Otherwise, the indirect oxidation at the same condition achieved phenol degradation efficiency of ۸۸.۹% with Fe anode and carbon felt cathode.Considering the direct and the indirect oxidation of AEOP's, the kinetic and therefore the reaction rate constant were significantly analyzed throughout the oxidation time. The phenol degradation efficiency has been investigated during the oxidation time with varied independent parameters like initial phenol concentration (۱۰۰, ۲۵۰,۵۰۰) mg/L, applied current density (۳۰, ۵۰, ۷۰) mAcm-۲ and electrolyte circulation (۶, ۹, ۱۲) L/hr. It was estimated that, for ۱۸۰ min oxidation time, ۷۰ mAcm-۲ current density, ۱۲ L/hr flowrate, and ۱۰۰ mg/L initial phenol concentration, the direct anodic oxidation achieved phenol degradation efficiency of ۷۴.۴% with graphite and ۸۳.۷% with β-PbO۲ anodes. Otherwise, the indirect oxidation at the same condition achieved phenol degradation efficiency of ۸۸.۹% with Fe anode and carbon felt cathode.

کلیدواژه ها:

Radical (OH•) ، Phenol ، Electro-Fenton (EF) ، Anodic Oxidation (AO) ، AEOP