Life-Cycle Assessment of Recycling Postconsumer High-Density Polyethylene and Polyethylene Terephthalate

Table 6

Data for the processing of 1 ton of the postconsumer recycled PET flake.

Raw materials
Sorted postconsumer PET	1250 kg
100% sodium hydroxide	24.5 kg
Defoamer	0.79 kg
Wetting agent	2.46 kg
Surfactant	0.98 kg
Energy usage (kWh)
Process energy		Total energy (Btu)
Electricity	430 kWh	1,467,160
Propane	0.0424 liters	1200
Total process		1,468,360
Incoming transportation energy		316,000
Water consumption	200 liters
Environmental emissions
Atmospheric emissions
Particulates (PM10)	0.039 kg
Particulates (PM2.5)	0.037 kg
Solid wastes to landfill	220 kg
Waterborne emissions
BOD	7.36 kg
COD	21.4 kg
Suspended solids	3.01 kg