Biogas generation from Watermelon peels, Pineapple peels and Food wastes
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Abstract
Description
the anaerobic digestion process for biogas
production was investigated using locally available waste
materials (watermelon peels, pineapple peels and food
wastes). Watermelon peels and pineapple peels each was codigested
with food wastes in ratio 1:1 while using rumen
contents of cattle as inoculum. The physical, chemical and
microbial characteristics of the three substrates were
determined before and after the co-digestion process using
standard methods. Analysis of the generated gas revealed
68.0% Methane, 20.0% Carbon dioxide, 6.0% Nitrogen,
2.5% Hydrogen, 1.5% Hydrogen sulfide and 2.0% Oxygen
for co-digestion of watermelon peels with food wastes while
co-digestion of pineapple peels with food wastes yielded
71.0% Methane, 18.0% Carbon dioxide, 7.0%
Nitrogen,l.5% Hydrogen, 1.5% Hydrogen sulfide and 1.0%
Oxygen. The anaerobic digestion was found to be efficient in
terms of pathogen treatment, since the reduction of
coliforms reached five logarithmic units. The availability
and renewable nature of biomass, green energy production
and ease of management and deployment of energy
produced makes biogas a better option to fossil fuel and thus
could be the much awaited solution to energy crisis in
Nigeria and other developing nations.
Keywords
Q Science (General), QH301 Biology