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Table 3

EFs used in the CF analysis (CFCT 2014)

CategoryEFValueUnitReference
GWP CH4 GWP 28 kg CO2e/kg CH4 IPCC (2013)  
N2O GWP 265 kg CO2e/kg N2O IPCC (2013)  
Biogas loss Biogas slip 2.8 % Göthe (2013)  
N2O from biogas 0.004 g N2O/kgburned CH4 Brown et al. (2010)  
CH4 from biogas 0.034 kg CH4/kgburned CH4 Doka (2003)  
Composting N2O emissions 2 % of total N-loss Kirkeby et al. (2005)  
CH4 emissions 0.75 % of total C Kirkeby et al. (2005)  
Indirect N2O emissions 0.0157 kg N2O/kg NH3 IPCC (2006)  
Substituted production of chemical fertilizer 2.9 kg CO2e/kgfertilizer Yara (2013)  
Recipient Effluent wastewater sea or lake 0.003 kg N2O/kg Neffluent Foley et al. (2008)  
CategoryEFValueUnitReference
GWP CH4 GWP 28 kg CO2e/kg CH4 IPCC (2013)  
N2O GWP 265 kg CO2e/kg N2O IPCC (2013)  
Biogas loss Biogas slip 2.8 % Göthe (2013)  
N2O from biogas 0.004 g N2O/kgburned CH4 Brown et al. (2010)  
CH4 from biogas 0.034 kg CH4/kgburned CH4 Doka (2003)  
Composting N2O emissions 2 % of total N-loss Kirkeby et al. (2005)  
CH4 emissions 0.75 % of total C Kirkeby et al. (2005)  
Indirect N2O emissions 0.0157 kg N2O/kg NH3 IPCC (2006)  
Substituted production of chemical fertilizer 2.9 kg CO2e/kgfertilizer Yara (2013)  
Recipient Effluent wastewater sea or lake 0.003 kg N2O/kg Neffluent Foley et al. (2008)  
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