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Article

Agro-Waste, a Solution for Rural Electrification? Assessing Biomethane Potential of Agro-Waste in Inhambane Province, Southern Mozambique

1
School of Business, Society and Engineering, Mälardalen University, Box 883, SE-721 23 Västerås, Sweden
2
Department of Chemical Engineering, Eduardo Mondlane University, P.O. Box 257 Maputo, Mozambique
*
Author to whom correspondence should be addressed.
Academic Editor: Sasha D. Hafner
Water 2021, 13(7), 939; https://doi.org/10.3390/w13070939
Received: 2 February 2021 / Revised: 23 March 2021 / Accepted: 24 March 2021 / Published: 30 March 2021
In this study, we investigated the biomethane potential of cassava peels from the four most common varieties of cassava grown in Inhambane Province in Mozambique, Chinhembue, Cussi, Cizangara and Nhassumbi. Agro-wastes from coconut wood and jambolan wood processing were also analyzed to give a complete analysis of the most significant sources of agro-waste in the province. The macromolecular composition (carbohydrates, lipids and proteins) was determined and used to calculate the theoretical maximum biochemical methane potential (BMP). The results show that cassava fiber and cassava peel, which are considered to be waste, are viable resources for biomethane production. Further, the results show that cassava fiber and cassava peel have a higher biomethane potential compared with sawdust, and are therefore more suitable for biomethane production. A study to investigate the effect of toxic cyanogenic glycosides and lignin on cassava peels, using pre-treatment techniques to enhance biogas yield, should be carried out. An estimate of how much electricity can be generated based on the availability of agro-waste (cassava residues) and the amount of biomethane produced in our laboratory experiment was carried out. The amount of electricity that can be produced is enough to provide a valuable contribution to the production process in small and medium sized enterprises (SMEs) and in the cassava industry, or some other use in the rural setting. View Full-Text
Keywords: biomethane potential; cassava peel; cassava fiber; sawdust biomethane potential; cassava peel; cassava fiber; sawdust
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MDPI and ACS Style

Mabecua, F.; Schwede, S.; Lucas, C.; Klintenberg, P. Agro-Waste, a Solution for Rural Electrification? Assessing Biomethane Potential of Agro-Waste in Inhambane Province, Southern Mozambique. Water 2021, 13, 939. https://doi.org/10.3390/w13070939

AMA Style

Mabecua F, Schwede S, Lucas C, Klintenberg P. Agro-Waste, a Solution for Rural Electrification? Assessing Biomethane Potential of Agro-Waste in Inhambane Province, Southern Mozambique. Water. 2021; 13(7):939. https://doi.org/10.3390/w13070939

Chicago/Turabian Style

Mabecua, Fastudo; Schwede, Sebastian; Lucas, Carlos; Klintenberg, Patrik. 2021. "Agro-Waste, a Solution for Rural Electrification? Assessing Biomethane Potential of Agro-Waste in Inhambane Province, Southern Mozambique" Water 13, no. 7: 939. https://doi.org/10.3390/w13070939

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