Single Stage Electrocoagulation of Industrial Cutting Oil Wastewater Using Iron Plate Electrodes
In this study, a single stage electrocoagulation of industrial metal cutting oil wastewater was carried using iron two layered Rushton type turbine anode. Effect of operating parameters like current density (CD), initial pH and supporting electrolyte concentration were investigated in detail. The initial COD concentration of 45,000mg/L was reduced to 8,000mg/L at pH 3 and 40 mA/cm2. The resulting overall removal efficiency of 82.2% emphasizes that this single stage process can be used as an effective pre-treatment process for metal cutting oils.
Index terms- Metal cutting oil wastewater, electrocoagulation, iron