Effect of granulometry of municipal solid waste in composition of biogas from anaerobic bioreators
DOI:
https://doi.org/10.6008/CBPC2179-6858.2020.002.0032Keywords:
Anaerobic Degradation, Bioreactor, Granulometry, BiogasAbstract
The growing urbanization brings a considerable increase of municipal solid waste (MSW), requiring the creation of alternatives that minimize the impacts of the disposal of this material in the environment. The disposal of MSW in landfills represents one of the environmentally appropriate destinations in the Brazilian context. In these places the waste degradation occurs through an anaerobic process that results to a gas mixture called biogas, which is composed basically by methane, carbon dioxide and other gases in lower concentrations. Bioreactor studies to the knowledge of the conditions of degradation of organic matter and of the factors that promote orhinder this process. Given this, the objective of this work was to analyze the influence of the granulometry of the MSW in the composition of biogas from three anaerobic bioreactors with different granulometries waste (between 4 and 8 mm) installed in the municipality of Itanhandu-MG. The monitoring of the composition of biogas from these bioreactors was done. Physico-chemical characterization was made of the residue used in the experiment. Waste used in the bioreactors had of large organic load and the end of the experiment demonstrated that there has been degradation of the material deposited. In General, the reduction in particle size proved to be a parameter, to the conditions of the study increasing the percentage of methane of biogas produced.
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