Characterization of Slaughterhouse Wastewaters and Evaluation of its Treatability

In this study, wastewater of a slaughterhouse which is located in Van is characterized and treatment alternatives are evaluated. For characterization; nitrate, sulfur trioxide, phosphate, ammonium nitrogen, chloride, suspended solids (SS), total organic carbon (TOC), total carbon (TC), inorganic carbon (IC), total nitrogen (TN), electrical conductivity (EC), pH, total chemical oxygen demand (TCOD), dissolved chemical oxygen demand (DCOD) and particulate chemical oxygen demand (PCOD) parameters were investigated. According to the results; nitrate; 18.5 - 35.9 ppm, sulfur trioxide; 15.3 - 89.3 ppm, phosphate; 72.2 - 190.5 ppm, ammonium nitrogen; 20 - 38 ppm, chloride; 239.9 - 422.7 ppm, TSS; 475 - 1800 ppm, TOC; 4429 – 10 250 ppm, TC; 4535 – 10 494.6 ppm, IC; 105.7 - 244.6 ppm, TN; 800 - 1546 ppm, EC; 1.4 - 3.0 ms cm-1, pH; 7.0 - 8.2, TCOD; 17 626 – 23 268 ppm, DCOD; 13 658 – 18 029 ppm and PCOD; 3968 - 5239 ppm were found. At the same time, anaerobic, aerobic, advanced oxidation, dissolved air flotation, membrane filtration and electrochemical treatment processes are investigated for slaughterhouse wastewater which is proposed in literature. Due to the multiple composition (pharmaceuticals, organic matter, toxic substances, etc.) of the wastewater, it was observed that the single treatment processes did not provide sufficient treatment and it was concluded that more effective treatment was performed with the combined processes