Biogas is produced during anaerobic fermentation of organic waste and it primarily consists of CH4 50-70%, CO2 25-50%, H2 1-1.5%, N2 0.3-3% and other minor species such as H2S.
El biogás se produce a partir de la fermentación anaerobia de 1-1,5% H2, 0,3-3% N2 y varias impurezas, especialmente H2S.