M.Sc

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M.Sc (Theses and Dissertations)

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Browsing M.Sc by Author "Adebayo, Olayinka Olumide"

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    Development and Evaluation of Briquette from Piggery Waste.
    (Obafemi Awolowo University, 2014) Adebayo, Olayinka Olumide
    ABSTRACT The study developed briquette from piggery waste. It also determined the effect of selected factors on the performance of the briquette developed. This was with a view to providing information on the management of agricultural waste. Five sizes of moulds of different diameters were fabricated locally. Piggery wastes were collected from pig pens and the moisture contents were determined and adjusted to five levels (18, 20, 22, 24, and 26%) to determine the effect of moisture on briquettes developed. The effect of different mass charges (0.150, 0.200, 0.250, 0.300, and 0.350 kg) on burn rate was also studied. Briquettes produced were replicated five times for each of the level, oven dried and transferred to the combustion rig for burning. The mass loss of each briquette was recorded at 2 minutes interval for 16 minutes, after which the mass loss percentage and loss rate were determined. The result of the study showed that the burn rate of briquette compacted at 20% moisture content level lost 82.83% of its initial mass after burning for 16 minutes at the mass loss rate of 0.171 g/s which gave the highest burn rate. Analysis of variance showed that treatments were significant at p ≤ 0.05. Moisture content and mass charge significantly (p ≤ 0.05) affected the mass reduction (F4,16 = 1.15 and 0.81) and mass loss/initial mass (F4,16 = 19.17 and 0.35) of the briquettes, respectively. The effects of mould radius (F4,16 = 3.11 and 3.08) and time (F4,16 = 1282.10 and 4356.06) on mass reduction and mass loss/initial mass, respectively, were significant (p ≤ 0.05.) using the developed briquettes. The study concluded that the briquettes developed from piggery waste is viable and requires a simple technology.