Optimal Condition of Operation Parameter for Livestock Carcass Leachate using Fenton Oxidation Process

Outbreak of animal infectious diseases such as foot-and-mouth disease, avian influenza are becoming prevalent worldwide. For prevent the further infection, tremendous numbers of the infected or culled stocks are buried around farm. This burial method can generate a wide range of detrimental components such as leachate, nutrient, salt, and pathogenic bacteria, consequently. In this study, for the stabilization of livestock carcasses leachate, advanced oxidation processes utilizing the Fenton reaction was investigated in lab-scale experiments for the treatment for CODCr of livestock carcass leachate. CODCr reduction by the Fenton oxidation was investigated response surface methodology using the BoxBegnken methods were applied to the experimental results. A central composite design was used to investigate the effects of the independent variables of pH (x1), dosage of FeCl2· 4H2O (x2) and dosage of H2O2 (x3) on the dependent variables CODCr concentration (y1). A 1 M NaOH and H2SO4 was using for pH control, FeCl2·4H2O was used as iron catalyst and NaOH was used for Fenton reaction. The optimal conditions for Fenton oxidation process were determined: pH, dosage of FeCl2·4H2O and dosage of H2O2 were 3, 0.6 g (0.0151 M) and 7 mL(0.259 M), respectively. Statistical results showed the order of significance of the independent variables to be pH > initial concentration of ferrous ion > initial concentration of hydrogen peroxide.