Biogas production from selected crop residues in Nigeria and estimation of its electricity value
by S.O. Jekayinfa; Bernd Linke; Ralf Pecenka
International Journal of Renewable Energy Technology (IJRET), Vol. 6, No. 2, 2015

Abstract: The production of biogas from peels of watermelon (WP), banana (BP) and potato (PP) was investigated in the laboratory scale using the simple single-state digesters of 1.5 L working volume. The digester was fed on a batch-basis with the slurry of WP, BP and PP containing average moisture content of 18% and operated at temperature of 35°C for 30 days. Measured biogas yields for WP, BP and PP were 0.46, 0.42 and 0.56 m³ (kg ODM)⁻¹ respectively after 30 days digestion time. Methane production from WP, BP and PP was 0.23 (49.8%), 0.24 (56.55) and 0.30 (53.2%) m³ (kg ODM)⁻¹ respectively. Results of this study suggest that 24,080 million and 38,520 million kWh of electricity can be generated from biogas at a low-end efficiency of 25% and at the high-end conversion efficiency of 40% respectively using only seven prominent energetically available crop residues in Nigeria.

Online publication date: Sat, 25-Apr-2015

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