LCA Food 2012 in Saint Malo, France! - Manifestations et colloques ...

PLENARY SESSION 1: FOOD 8 th Int. Conference on LCA in the
Agri-Food Sector, 1-4 Oct 2012
Table 7. Composting – converted to CO2-equivalents per kg food waste
Transport /
Biological
Pre-treatment Average Process Average Total
CH4, biogenic
CO2, biogenic
CO2, fossil
N2O
Total
[g]
0.01-0.1
4 - 13
in [g] CO2eq
1.25
10.00
0.00
11
[g]
0.5-1.5
260.00
2 - 10
max 0.05
in [g] CO2eq
25.00
7.80
14.90
48
in [g] CO2eq
26.25
17.80
14.90
59
Emissions [g] / kg
Table 8. Anaerobic digestion – converted to CO2-equivalents per kg food waste
Emissions [g] / kg
Storage/
Postcomp.
Gas
conditioning
PreAver- AD
storageage a
AverAver-
Process ageage
CHP b
AverAverageage
Total
in [g]
in [g]
in [g]
in [g]
in [g] in [g]
CH4, biogenic
[g]