Potential of biogas production from biomass and waste materials in the Small Island Developing State of Mauritius

Zumar M.A. Bundhoo, Sumayya Mauthoor and Romeela Mohee

Renewable and Sustainable Energy Reviews, 2016, vol. 56, issue C, 1087-1100

Abstract: Mauritius is heavily dependent on fossil fuels for its energy requirement while energy from renewables contributes only a small fraction of the total primary energy requirement of the island. As such, this study reviewed the potential of energy production from mesophilic anaerobic digestion (AD) of the different wastes or biomass available in Mauritius. Based on the review, the net energy available from AD of the various wastes/biomass studied amounted to 4685 TJ/year (2174TJ/year of electrical energy and 2511TJ/year of thermal energy), representing 12.6% of the final energy consumption of the island. Alternately, the 2174TJ/year of available electrical energy would represent 20.8% of the total electricity generated in Mauritius. Among the different substrates reviewed viz. agricultural wastes/biomass, municipal wastes and industrial wastes, it was determined that sugarcane field-based agricultural residues (3790TJ/year), organic fraction of municipal solid wastes (462TJ/year) and vinasse (268TJ/year) are the feedstocks having the higher energy potential from large scale AD in Mauritius. Although there is a huge potential for AD in Mauritius, the technology is not commercially exploited. Consequently, this study also reviewed numerous barriers that could be hampering the implementation of AD on the island. In addition, several recommendations were put forward to encourage the exploitation of AD in Mauritius. Nonetheless, strong commitment from the government is of utmost importance while the benefits of the AD process should be made more knowledgeable to potential stakeholders and investors.

Keywords: Renewable energy; Waste; Anaerobic digestion; Agricultural residues; Biomass; Biogas (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (12)

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DOI: 10.1016/j.rser.2015.12.026

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