Comparing Parallel Plastic‐to‐X Pathways and Their Role in a Circular Economy for PET Bottles
نویسندگان
چکیده
The United States generates the most plastic waste of any country and is a top contributor to global pollution. Multiple end-of-life strategies must be implemented minimize environmental impacts retain valuable material, but it challenging compare options that generate products with different lifetimes utilities. Herein, they present material flow model equipped consequential life cycle assessment, cost analysis, circularity indicator considers product quality lifetime. used estimate greenhouse gas (GHG) emissions, circularity, polyethylene terephthalate (PET) bottle mechanical downcycling lower-quality resin, closed-loop glycolysis food-grade PET, upcycling glass fiber-reinforced plastic, conversion non-plastic (electricity, oil) on economy-wide basis for year 2020. A brute force algorithm suggests combination 68% glycolysis, 11% recycling, 6% upcycling, 9% landfilling, 5% incineration can GHG emissions maximize current PET economy. However, uncertainty around transportation distances, materials recovery facility efficiencies, recycling yields result in “optimal” pathway mixes. This flexible framework enables informed decision-making move toward cost- environment-conscious circular economy plastic.
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ژورنال
عنوان ژورنال: Advanced sustainable systems
سال: 2023
ISSN: ['2366-7486']
DOI: https://doi.org/10.1002/adsu.202300068