Title:
Environmental Impact of Biogas in Europe
Author(s):
Tomassetti, L., Segreto, M., Torre, M., Borin, D., Tratzi, P., Paolini, V., Petracchini, F.
Document(s):
Paper
Abstract:
This survey reports the emission rate estimates of the main greenhouse gases (GHG), namely CO2, CH4 and N2O, according to several case studies conducted over the world. Direct emissions of gaseous pollutants are then discussed, with a focus on nitrogen oxides (NOx); evidences of the importance of suitable biomass and digestate storages are also reported. The current knowledge on the environmental impact induced by final use of digestate is critically discussed, considering both soil fertility and nitrogen release into atmosphere and groundwater; several case studies are reported, showing the importance of NH3 emissions with regards to secondary aerosol formation. The biogas upgrading to biomethane is also included in the study: with this regard, the methane slip in the off-gas can significantly reduce the environmental benefits.
Keywords:
biogas, pollution, climate change, digestate
Topic:
Biomass Sustainability, Impacts and Policies
Subtopic:
Environmental impacts of bioenergy
Event:
27th European Biomass Conference and Exhibition
Session:
4AV.3.9
Pages:
1671 - 1672
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-4AV.3.9
Price:
FREE
