THE EFFECT OF METAL OXIDES NIO, COO, DAN ZNO ON ETHANOL FORMATION FROM ARTIFICIAL PALM OIL MILL EFFLUENT (POME) IN ANAEROBIC PROCESS

• Main Author: Adrianus Win, Ryan
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/86082
• Institution: Institut Teknologi Bandung

Palm Oil Mill Effluent (POME) is an organic residue produced during the palm oil extraction process with high organic and inorganic concentrations. Ethanol can be derived from wastewater treatment with the concept of waste-to-energy (WTE), one of which is the formation of ethanol from POME. The process of ethanol formation from POME is carried out anaerobically because it is suitable for wastewater with biodegradable COD with high dissolved COD concentration (? 2,000 mg/L). Anaerobic digestion involves the role of microorganism enzymes which are influenced by enzyme cofactors to break down the substrate. There are many metal oxides that can play a role in the formation of enzymes, but it is not known exactly which metal oxides are very influential for ethanol formation. This study was conducted as a screening to determine the effect of NiO, CoO, and ZnO metal oxides on the formation of ethanol from POME in anaerobic processes. Circulating Bed Reactor (CBR) was used as the reactor operated for 24 hours in batch. The highest COD reduction was obtained by the addition of 3 metal oxide with an efficiency of 28,08%. The result of the analysis showed that the addition of metal oxides of 3 metals (ABC) had a significant effect on the efficiency of reducing the dissolved COD value. While the addition of ZnO (C) metal oxide can have a significant effect on the formation of ethanol by 32.28%.