At present, the consumption of PET plastic beverage bottles in my country is very high. The reuse of waste PET beverage bottles can not only reduce environmental pollution, but also turn waste into treasure:

One ton of recycled PET yarn = 67,000 plastic bottles = 4.2 tons of carbon dioxide reduction = 0.0364 tons of oil saving = 6.2 tons of water saving.

But at present, only a small part is used, and the rest is discarded at will, causing waste of resources and environmental pollution. Therefore, its recycling technology has broad prospects.