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Open AccessArticle

Construction of Biodigesters to Optimize the Production of Biogas from Anaerobic Co-Digestion of Food Waste and Sewage

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Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, 21941909 Rio de Janeiro, Brazil
2
Department of Marine Engineering, Polytechnic School, Federal University of Rio de Janeiro, 21941909 Rio de Janeiro, Brazil
*
Author to whom correspondence should be addressed.
Energies 2018, 11(4), 870; https://doi.org/10.3390/en11040870
Received: 22 February 2018 / Revised: 26 March 2018 / Accepted: 27 March 2018 / Published: 9 April 2018
The objective of this study was to build and develop anaerobic biodigesters for optimization of biogas production using food waste (FW) and sewage (S) co-digestion from a wastewater treatment plant (WWTP). The biodigesters operated with different mixtures and in mesophilic phase (37 °C). During the 60 days of experiments, all control and monitoring parameters of the biodigesters necessary for biogas production were tested and evaluated. The biodigester containing FW, S and anaerobic sludge presented the biggest reduction of organic matter, expressed with removal of 88.3% TVS (total volatile solid) and 84.7% COD (chemical oxygen demand) the biggest biogas production (63 L) and the highest methane percentage (95%). Specific methane production was 0.299 LCH4/gVS and removed. The use of biodigesters to produce biogas through anaerobic digestion may play an important role in local economies due to the opportunity to produce a renewable fuel from organic waste and also as an alternative to waste treatment. Finally, the embedded control and automation system was simple, effective, and robust, and the supervisory software was efficient in all aspects defined at its conception. View Full-Text
Keywords: development of biodigesters; biogas production; anaerobic co-digestion; sewage; food waste; renewable fuel development of biodigesters; biogas production; anaerobic co-digestion; sewage; food waste; renewable fuel
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Guimarães, C.D.S.; Maia, D.R.S.; Serra, E.G. Construction of Biodigesters to Optimize the Production of Biogas from Anaerobic Co-Digestion of Food Waste and Sewage. Energies 2018, 11, 870.

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