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DOI:
10.4314/njtd.v15i3.1Keywords:
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Investigative Study on the Use of De-Oiled Palm Kernel Cake for Biogas Production
Abstract
Availability of Palm Kernel Cake (PKC) has increased due to the increase in the number of cottage oil palm processing industries in developing countries. A quest for clean energy from bio-waste is also on the increase. This study aims at investigating the biogas generating capacity of de-oiled PKC and its corresponding methane content. De-oiled PKC and a mixture of de-oiled PKC and fresh sugar cane chips were used as the two bio-feed samples in a laboratory anaerobic digestion set up. A theoretical approach was also used to determine the expected methane content in the biogas. Laboratory results for de-oiled PKC gave the volume by weight of bio-feed for biogas and methane to be 12.7 ml/g and 4.2 ml/g respectively and that of the combination of de-oiled PKC and fresh sugar cane chips to be 3.15 ml/g and 1.25 ml/g respectively. The measured methane composition for de-oiled PKC and that of the combination of de-oiled PKC and fresh sugar cane chips to be 33% and 40% respectively while the theoretical estimates were 33.5% and 41.1% respectively. The study shows that de-oiled palm kernel cake has biogas/methane generation potential whose quality can be improved by the addition of other biogas producing wastes.
KEYWORDS: Biogas, Agro-Industrial Waste, Palm Kernel Cake, Anaerobic Digestion, Wastewater.
