Anaerobic digestion of wastewater from coffee and chemical analysis of biogas produced using gas chromatography: quantification of methane, and potential energy gas exchanger

Authors

  • Cláudio Milton Montenegro Campos Universidade Federal de Lavras
  • Marco Antonio Calil Prado Universidade Federal de Lavras
  • Erlon Lopes Pereira Universidade de São Paulo

Abstract

Methane is the main constituent of biogas, being responsible for its calorific value. This work objective was to present the analysis of methane concentration in the biogas originated from anaerobic treatment system of wastewater of coffee wet processing (CWP) at laboratory scale, using coffee coconut. The methane concentration were performed by gas-solid chromatography (GSC) analyses. The system was composed of a column Restek RT-Q-PLOT, with the stage sets, the divinyl-benzene, nitrogen as mobile phase and a flame ionization detector (FID). The results of the concentration of methane in the biogas ranged from 48.60 to 68.14%. The upper and lower calorific values were 25,654 and 23,777 kJ.m-3, respectively. For interchangeability, obtained a Wobbe number of 7,851 kcal.m-3, resulting in their interchangeability with piped gas (city gas).

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Published

2013-06-04

How to Cite

CAMPOS, C.M.M., PRADO, M.A.C. and PEREIRA, E.L., 2013. Anaerobic digestion of wastewater from coffee and chemical analysis of biogas produced using gas chromatography: quantification of methane, and potential energy gas exchanger . Bioscience Journal [online], vol. 29, no. 3, pp. 570–581. [Accessed13 April 2024]. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/13973.

Issue

Section

Agricultural Sciences