Poultry Slaughterhouse Wastewater Treatment Using an Integrated Biological and Electrocoagulation Treatment System: Process Optimisation Using Response Surface Methodology

The feasibility of a biological (EcoflushTM) and/or electrocoagulation (EC) treatment system in removing chemical oxygen demand (COD) and fats, oils, grease (FOG) from poultry slaughterhouse wastewater (PSW) were studied. response surface methodology (RSM) was used to identify the optimum operating condition for EC its integration with EcoflushTM as pre-treatment removal lipids. conditions obtained at pH 3.05, current density 66.9 A/m2, 74-min time, without Ecoflush™. These produced high-quality clarified effluent after 92.4% COD reduction 99% FOG reduction. only resulted 85–99% reduction, 20–50% odourless effluent. However, combination both processes (EcoflushTM EC) did not yield significant difference (F test, p > 0.05) when compared performance alone. Despite low percentages nitrogen phosphorus, present study proved that is an effective method FOG, rendering meets permissible discharge standards City Cape Town. novel Ecoflush™ also be very efficient PSW.