Penyisihan Chemical Oxygen Demand (COD) Limbah Cair Pabrik Sagu Menggunakan Bioreaktor Hibrid Anaerob Pada Kondisi Start Up

Abstract

Industrial development was followed by an increase of sago starch sago wastewater generated. In producing sago starch takes 20,000 liters of water per ton of starch, which is 94% water would be liquid waste sago. Sago effluent has COD (Chemical Oxygen Demand) to 100,000 mg / l. These conditions will have a negative impact on the environment if not managed properly. One way to lower the COD content by using hybrid anaerobic bioreactor. Conditions Start up is one of the important conditions in wastewater using hybrid anaerobic bioreactor, because this happens to reach the steady proliferation of microorganisms. This study aims to review the condition of the start-up of hybrid anaerobic bioreactor COD parameter and observing the resulting biogas. The research was carried out with a flow rate of 2 l / day at room temperature. The results showed that the COD removal efficiency of the largest obtained 90,45% with pH 6.2 as well as the operation of the biogas production of 14 982 ml / day. The results of this study indicate that the start-up of hybrid anaerobic bioreactor lasts for 59 days.