Biogas from poultry waste—production and energy potential

摘要: The objective of this study was to evaluate the effect heat treatment on poultry litter with different levels reutilisation for potential generation biogas in experimental biodigesters. Chicken used obtained from two small-scale houses where 14 birds m−2 were housed a period 42 days per cycle. Litter aviary 1 received no while each batch produced 2 underwent fermentation process. For taken, biodigesters set aviary, hydraulic retention time 35 days. efficiency biodigestion process evaluated by production relation total solids (TS) added, as well power generation. Quantified volumes ranged 8.9 41.1 L 1, and 6.7 33.9 L 2, sixth bed reused both aviaries registering largest potential. Average m3 kg−1 TS added 0.022 0.034 0.015 2. Energy values ​​of calculated based calorific value 0.06 0.33 kWh chicken without 0.05 0.27 kWh fermentation. It concluded that re-use resulted an increase production, use microbiological seems have negatively influenced biogas.