CLIMATIC CHARACTERISTICS AND HOURLY VARIATIONS IN BIOGAS CONCENTRATION IN A SANITARY LANDFILL IN NORTHEAST BRAZIL

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Francisco Suetônio Mota
Lorena S. Monteiro
Wildson Max B. da Silva
David A. Borges

Resumo

This study determined the hourly variations in the concentration of methane
(CH4), carbon dioxide (CO2), and oxygen (O2) during 24-hour periods in a
sanitary landfill located in Northeast Brazil, with a predominantly hot tropical
mild semi-arid climate. Data were collected over 24 hours in four campaigns in
November 2014 and January, March, and April 2015. The measurements were
taken in a drain of the sanitary landfill using a portable gas analyzer. We found
that, in general, the highest methane concentrations corresponded to the
highest biogas temperatures. The maximum concentration of CH4 (59.2%)
occurred at a temperature of 36.8ºC, while the minimum concentration of
CH4 (43.2%) was identified at a temperature of 25.4ºC. No relationship was
found between CH4 emissions and rainfall, with temperature being the factor
that most influenced the concentration of this gas.

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Como Citar
Mota, F., Monteiro, L., Silva, W., & Borges, D. (2019). CLIMATIC CHARACTERISTICS AND HOURLY VARIATIONS IN BIOGAS CONCENTRATION IN A SANITARY LANDFILL IN NORTHEAST BRAZIL. Revista Brasileira De Ciências Ambientais (Online), (54), 1-12. https://doi.org/10.5327/Z2176-94782190077
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