| Title | Developing a plastic cycle toward circular economy practice |
|---|---|
| ID_Doc | 918 |
| Authors | Nguyen, TTA; Ta, YT; Dey, PK |
| Title | Developing a plastic cycle toward circular economy practice |
| Year | 2022 |
| Published | Green Processing And Synthesis, 11, 1 |
| Abstract | This study develops a plastic cycle toward circular economy practice in Vietnam. First, we analyze inter-relationships between economic sectors and environmental issues concerning plastic waste in 2018. The research method integrates interdisciplinary balance with life cycle inventory, in which input-output (IO) table is both an econometric tool and original database to determine plastic IO between industries. As a result, over 60% of plastics after use was recycled for the production process (called recycled plastics) and nearly 40% of plastics after-use left the process (called disposed plastics). Within the recycled plastics, there was 10-15% of informal recycling collection from trade villages; within the disposed plastics, there was 13-18% unable to be collected and uncontrollably disposed to the environment. Then, we construct the plastic cycle, in which all the imported/domestic flows, single/multiple uses, and recycle/disposal flows are represented in proportional dimensions. This overall yet quantitative picture is an important data-driven basis for proposing plastic waste management solutions toward circular economy practice. As analyzed, the most challenge for waste management in Vietnam is to control single-use products (occupied 15.96% of total plastics) and indiscriminate waste in the environment (occupied 20.36% of total plastics). The case study for polyethylene terephthalate shows the need for expanding producer's responsibilities to improve plastic recovery efficiency. |
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