Suspended Growth Bioreactor and Their Potential Application for Slaughterhouse Wastewater Treatment

Abstract

Wastewater of slaughterhouse process and removal performance for biochemical oxygen demand (BOD₅) and chemical oxygen demand (COD) have studied in a suspended growth reactor (SGR) and arranged with activated sludge plus biofringe (BF + AS) and with only activated sludge (AS) reactor. The volumetric capacity of laboratory reactor is 10 liter (L), maintains the pH level at 7.0 ± 0.5 and placed at room temperature (27±3 oC). Wastewater of slaughterhouse commonly contains a large amount of blood and organic pollution, which causes contaminant loading. Therefore, the biological treatment might be effective option with success. ‎Thus, the percentage removal of AS with BF is higher than AS treatment due to aerobic and anaerobic circumstance under AS with BF which occurred with parallel treatment while the aerobic condition is occurred with AS treatment. Bio-reactor is arranged with AS + BF significantly removal BOD, and COD.

Keywords: Biochemical oxygen demand (BOD₅), Chemical oxygen demand (COD), Suspended growth, Biological treatment, Biofringe, Slaughterhouse wastewater.