Title:
Anaerobic Digestion of Food Waste
Author(s):
de Oliveira, B.P., dos Santos Oliveira, L.H., Martins, G.
Document(s):
Paper
Poster
Abstract:
In 2010 Brazil endorsed a new National Policy of Solid Wastes, which has a very ambitious target to close up all the dumping areas and to manage adequately all the municipal solid waste, disposing in landfills only the refuse after 2019. More than 50% of the Brazilian municipal solid waste is organic, which can produce biogas through anaerobic digestion process. Anaerobic digestion of some samples of restaurant food wastes were performed in batch laboratory 500 ml reactors for determination of optimized operating conditions. The tests were conducted in triplicate with three different substrate to inoculum mixing ratios: 10:90 (S1), 20:8 (S2) and 30:70 (S3). The food waste used as substrate was previously homogenized and submitted to aerobic mechanical mixing for 4 days before it was fed in the reactors in anaerobic conditions at the mentioned proportions with the inoculum. The reactors were maintained at 35°C and under mechanical mixing at 60 rpm. The methane production was monitored until its stabilization. Results showed that S1 presented the best performance during the initial 12 days, when it totalized 526 Nml CH4/gSVsubstrate.
Keywords:
anaerobic digestion, biogas, methane, municipal solid waste (MSW), pretreatment
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas production
Event:
25th European Biomass Conference and Exhibition
Session:
2CV.4.17
Pages:
902 - 906
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2CV.4.17
Price:
FREE
