Publication Details (including relevant citation information):
Published in the journal of the Anambra State Chapter of the Chemical Society of Nigeria (2008).
Anachem Journal, 2008 Vol 3(2), 500-504.
Four one litre glass bottles and four 50 cm3 inverted burettes were used as anaerobic digesters and gas collection chambers respectively in an experiment to compare the biogas production from mixtures of cattle slurry, shredded maize stalks and inoculums. The proportions of the mixtures used are - Sample A: 20% Inoculum, 80% slurry and 0% shredded maize stalk; Sample B: 23.76% inoculum, 71.18% slurry and 5.06% shredded maize stalk; Sample C: 29.24% inoculum, 58.32% slurry and 12.44% shredded maize stalk; Sample D: 61.04% inoculum, 0% slurry, 38.96% shredded maize stalk. Retention period of 32 days with ambient temperature range of 26 to 35 degree Centigrade gave biogas yields with Sample C - 12.44 % shredded maize stalk giving the highest yield of 910.8 cm3 while Sample D - 38.96% shredded maize stalk gave the lowest yield of 74.8 cm3. It was found out that as the percentage of shredded maize stalk increased, the initial pH of the mixture decreased.
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