Residual biogas potential from the storage tanks of non-separated digestate and digested liquid fraction
Articolo
Data di Pubblicazione:
2011
Abstract:
Biogas plants daily produce enormous volumes of digestate that can be handled in its raw form or after mechanical separation. In Italy, effluents are usually stored within aboveground, uncovered tanks, which make them potential emitters of biogas into the atmosphere. The purpose of this study was to estimate the amount of biogas emitted to the atmosphere during the storage phase of non-separated digestate and digested liquid fraction. The trials were performed at two northwest Italy 1MWel. biogas plants. A floating system for the residual biogas recovery, and a set of three wind tunnels for NH3 emission measurement were used. The experiment demonstrated significant loss to the atmosphere for each of the gases; specifically, on average, 19.5 and 7.90 Nm3biogas MWhel.-1were emitted daily from the storage tanks of non-separated digestate and digested liquid fraction, respectively.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Anaerobic Digestion; Digestate; Digested Liquid Fraction; Digested Slurry Storage; Biogas Emissions
Elenco autori:
Gioelli F; Dinuccio E; Balsari P
Link alla scheda completa:
Link al Full Text:
Pubblicato in: