Toxicity Remediation of Petroleum refinery Wastewater by Electrooxidation Techniques Using Graphite Electrode

Abstract

Abstract The present experimental study used a successful advanced electrochemical oxidation process (AEOP) and a parallel-plate electrochemical reactor to investigate the potential of electrochemical oxidation (EO) treatment method for real produced wastewater produced by the Al-Samawah petroleum refinery. In electrochemical oxidation, several electrodes type were employed, with carbon felt and graphite plate serving as the anode. Tests of total organic compounds and chemical oxygen demand have confirmed this. The influence of numerous operational factors on performance, such as current density, supporting electrolyte, the distance between electrodes, and temperature, has been investigated, as well as the energy consumption. After 1 hour of treatment, results were obtained at 40°C, and 15 mA/cm2 using graphite plate anode, that the COD removal was 77.509%. And the TOC removal was 68.13%, by using the direct Electrooxidation technique and COD removal 86.802%, TOC removal 70.662% by using indirect Electrooxidation.