The potential bio-conversion of Palm Oil Mill Effluent (POME) as Bioethanol by steady-state anaerobic processes

Abstract

Biomass is a central issue as new material that can be used as a substrate to produce biofuels, it has become global research to replace liquid fossil fuels with alternative renewable and sustainable fossils. Palm oil mill effluent (POME) is the potential of Agri-industrial waste to be used as alternative energy with anaerobic digestion of high concentration organic wastewater can be used for bioethanol production to replace food as raw material. Bioethanol can be produced in acidogenic steps in the organic degradation process. In this research, bacterial mixed cultures sourced from bovine rumen as biomass and the substrate used was palm oil mill effluent (POME) with a characteristic COD concentration of 25,600 mg/L, The operation of the reactor is set at pH 5; 6; 7 for 72 hours with the type of anaerobic circulating batch reactor (CBR), measurement of bioethanol products and acidogenesis of samples is carried out every 6 hours. The results showed that the reactor with variations in pH conditions 5 gave the highest efficiency of bioethanol formation in the 12 hour running process, result is 102,94 mg/L with a maximum formation rate of 9,98 mg/L/hour.

A Step into Future Fuel Industrial Effluents into Bioethanol: A Review

“…Bioethanol production from POME with different pH and have been finalized with a maximum yield of 6.5% or 51.3g/l on the 4th day of fermentation. pH 6 has the greatest bioethanol production of 44 mg/L and in pH 7 conditions highest concentration of bioethanol production was observed to be 88,85 mg/L [7].…”

Transformation of Lignocellulosic Biomass into Sustainable Biofuels: Major Challenges and Bioprocessing Technologies

“…Bioethanol was produced through spontaneous fermentation of POME with the addition of glucose and sugar cane bagasse with a high ethanol yield of 2.3% under optimized conditions (Wakil et al, 2013). More recently, Anggamulia et al, produced the highest amount of ethanol 0.102 g/L from POME in a 12 h process using mixed bacterial culture (Anggamulia et al, 2020). Al-Shorgani et al, had successfully utilized raw POME to produce biobutanol by Clostridium saccharoperbutylacetonicum N1-4 (ATCC13564) in batch ABE fermentation.…”