Table 2.
Life cycle inventory and data sources.
| Process/Material | Data Source | Value |
|---|---|---|
| Treatment of food waste by anaerobic digestion | Ecoinvent 3 (Biowaste {RoW}|treatment of biowaste by anaerobic digestion|Conseq, S) | 1525 t |
| Avoided avian feed | Agri-footprint (Compound feed laying hens >17 weeks/NL Economic) [47] | 36.5 t |
| Avoided fishmeal | Ecoinvent 3 (Fishmeal, 65–67% protein, from anchovy {GLO}|market for fishmeal, 65–67% protein, from anchovy|Conseq, S) [47] | 36.5 t |
| Avoided fertiliser | Ecoinvent 3 (Compost {GLO}|market for|Conseq, S) [47] | 439 t |
| Water use | Water, unspecified natural origin, GB [48] | 94 m3 |
| Electricity use | Ecoinvent 3 (Electricity, medium voltage {GB}|market for|Conseq, S) [48] | 19,798 kWh |
| Air emission | Water [47] | 1091 t |
| Air emission | Carbon dioxide [48] | 25 t |
| Air emission | Methane [48] | 79 kg |