Table 3 Supplement items for a zero emission system
Item | Unit | Equivalent factor (J/Unit) | Reference | Total | |
|---|---|---|---|---|---|
Natural non-renewable resource (NR) | |||||
Water | kg | 4.94E− 03 | 49.40E+ 06 | ||
Purchased -non-renewable resource (PN) | |||||
Plastic | kg | 1.08E+ 08 | [12] | 2.80E+ 12 | |
Biogas sludge | kg | 3.72E+ 05 | [14] | 1.25E+ 12 | |
Biomass (crop residues) | kg | 1.88E+ 07 | [44] | 9.13E+ 08 | |
Biogas | m3 | 2.20E+ 07 | [38] | 1.95E+ 12 | |