ASSESSING THE ABILITY OF THE ELECTRO-OXIDATION TECHNIQUE TO REMOVE HYDROCARBONS FROM EFFLUENT WASTEWATER FROM THE AL-MUTHANA PETROLEUM REFINERY
Keywords:
Wastewater, Electro-oxidation method; COD; Cell current density; Organic compounds removal.Abstract
In this study, the anodic oxidation approach was applied to remove organic hydrocarbon from effluent wastewater from Al-Muthana petroleum refinery. The treatment process was achieved using a batch tubular electro-reactor of 1 liter in volume consisted of two concentric graphite electrodes. Impact of current density, pH and addition of NaCl were studied. The optimum operation conditions could be obtained when the operation is carried out at a current density of 8 mAcm-2, pH of 6.0, and addition 1g/L of NaCl for 120 min starting from an initial chemical oxygen demand (COD) of 800 ppm which results in COD removal efficiency (RE%) of 84.3% with a COD discharge lower than 150ppm. The result showed that the electro-oxidation process was applied efficiently for the treatment of hydrocarbons - loaded wastewater. This technique can be applied in the treatment processes of wastewater produced from petroleum refineries with high performance, low cost, and simple operation
