Title:
Dairy Farms GHG Emissions Mitigation Potential of Biogas Production from Manure
Author(s):
Battini, F., Amaducci, S., Boulamanti, A.K., Giuntoli, J., Agostini, A.
Document(s):
Paper
Poster
Abstract:
The anaerobic digestion of manure to biogas and its combustion in a Combined Heat and Power engine (CHP) is an option to mitigate GHG emission because, besides reducing the direct emissions of methane and nitrous oxide from manure during its storage, it reduces also carbon dioxide emissions by substituting the fossil fuel needed to produce electricity. We used actual data to analyse a typical dairy farm in Northern Italy. Without biogas plant, the GHG emissions result to be equal to 1.11 kg CO2 eq.kg-1 yr-1 FPCM without allocation of the environmental burden to the by-product meat. With mass allocation, the GHG emissions associated to the milk are reduced to 1.08 kg CO2 eq. kg-1 yr-1 FPCM. Using an economic allocation approach the GHG emissions allocated to the milk are 1.02 kg CO2 eq. kg-1 yr-1 FPCM. The analysis performed shows that the deployment of manure digestion in biogas plants reduces GHG emissions by 31.6 % if the digestate is stored in an open tank. If the digestate storage tank is gas tight and the additional biogas from the storage tank is captured and used in the CHP, the GHG emissions associated to milk production are reduced by 47.3 %.
Keywords:
biogas, greenhouse gases (GHG), life cycle assessment (LCA), renewable energy, renewable energies, dairy farm
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Anaerobic digestion for biogas production
Event:
21st European Biomass Conference and Exhibition
Session:
2DV.4.42
Pages:
1275 - 1281
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2DV.4.42
Price:
FREE
