Research Article
Life-Cycle Assessment of Recycling Postconsumer High-Density Polyethylene and Polyethylene Terephthalate
Table 11
Solid waste for recycled PET resin (kg of waste per ton of resin).
| | Process solid wastes | Landfill | Incineration | Waste-to-energy | Fuel-related solid wastes | Total | Total % |
| PET: cut-off, volume-based collection (50% compaction) | | | | | | | Collection (50% compaction) | 0 | 0 | 0 | 2.23 | 2.2 | 0.6 | Sorting/separation | 73 | 0 | 0 | 1.26 | 74.3 | 21.5 | Reclaimer processing to flake | 221 | 0 | 0 | 47.5 | 268.5 | 77.8 | Total for PET flake | 294 | 0 | 0 | 50.99 | 345.0 | | Percent by category | 77 | 0 | 0 | 0 | | | Conversion of flake to pellet | 0 | 0 | 0 | 44 | | | Total for PET pellet | 294 | 0 | 0 | 94.99 | 389.0 | | Percent by category | 75.70 | 0.00 | 0 | 24 | | | PET: system expansion, volume-based collection (50% compaction) | | | | | | | Allocated virgin resin production | 16.6 | 1.01 | 0 | 54 | 71.6 | 29.1 | Collection (50% compaction) | 0 | 0 | 0 | 1.13 | 1.13 | 0.5 | Sorting/separation | 37 | 0 | 0 | 0.64 | 37.6 | 15.3 | Reclaimer processing to pellet | 112 | 0 | 0 | 24.1 | 136.1 | 55.2 | Total for PET flake | 165.6 | 1.01 | 0 | 79.87 | 246.5 | | Percent by category | 67.2 | 0.4 | 0 | 32.4 | | | Conversion of flake to pellet | 0 | 0 | 0 | 22 | 22 | | Total for PET pellet | 165.6 | 1.01 | 0 | 101.87 | 268.5 | | Percent by category | 61.7 | 0.4 | 0.0 | 37.9 | | |
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