Treatment of Dairy Wastewater by Electrocoagulation Process Using Iron Electrodes

The present study focused on dairy wastewater treatment with a help process of electrocoagulation. In a batch reactor with a 1 L capacity, iron electrodes were used as sacrifice electrodes. The dairy waste had a pH of 9.0, 255 NTU turbidity, a COD of 3000 mg/L, and was white in colour. For COD, colour, and turbidity removal, the optimal working parameters, including voltage, pH, and electrolysis time, were found to be 30 V, 8 pH, and 60 min, respectively. The highest removal rates for COD, colour, and turbidity were 98%, 89%, and 86%, respectively. The study's results demonstrated that electrocoagulation employing iron as a sacrificial electrode can be used as a successful alternative method for dairy wastewater.