Slaughterhouse Wastewater Treatment by Integrated Chemical Coagulation and Electro-Fenton Processes

The slaughterhouse industry produces large amounts of highly polluted wastewater which needs to be treated before being discharged water. Thus, this work was conducted investigate the feasibility treating using combined chemical coagulation and electro-Fenton methods. We studied effect process parameters such as polyaluminum chloride (PAC) concentration (25, 50, 75, 100 mg/L) for hydrogen peroxide (500, 1000, 1500, 2000, 2500, 3000, 4000 mg/L), pH solution (3, 5, 7, 10), reaction time (5, 10, 15, 30, 45, 120 min) voltage (10, 20, 40 V) on removal oxygen demand (COD), biochemical (BOD), total suspended solids (TSS), Kjeldahl nitrogen (TKN), fecal coliforms (FC). optimum efficiency obtained at PAC = 75 mg/L, min, 3, H2O2 2500 V 20 V, resulted in 89.55% COD, 88.88% BOD, 91.27% TSS, 69.23% TKN, 100% FC. findings demonstrated that processes effectively efficiently treat wastewater. results research can used by competent authorities increase treatment protect environment.