PENURUNAN KADAR COD, TSS, DAN NH3-N PADA AIR LIMBAH RUMAH POTONG HEWAN DENGAN PROSES BIOFILTER ANAEROB-AEROB MENGGUNAKAN MEDIA BIOBALL

Abstract

Anaerobic-aerobic biofilter combination system is an alternative technology that can be applied to handle slaughterhouse’s wastewater. This study aims to determine how effective the processing  using a combination of anaerobic-aerobic biofilter with treatment variables, namely variations in flow rate and air discharge to decrease the pollutant content of COD, TSS, and NH3-N in slaughterhouse’s wastewater, so that it can determine the most effective flow and air flow. This process goes through several stages, namely the stage of biofilm growth in a medium called seeding or natural bacterial breeding, the next step is acclimatization or biofilm adaptation to the wastewater. After these stages, continue with the running process so that the results obtained that the combination of anaerobic-aerobic biofilter system is fairly effective in reducing the pollutant content of COD, TSS, and NH3-N in abattoirs wastewater. This is proven from the results of the percent decline with the most effective results at flowrate of 30 mL/minute and air flow 12 mL/minute which is COD content of 90,12% and NH3-N of 97,33%, and TSS of 83,76%, at flowrate 30 mL/minute and air discharge 8 mL/minute.