期刊
RESOURCES CONSERVATION AND RECYCLING
卷 145, 期 -, 页码 67-77出版社
ELSEVIER
DOI: 10.1016/j.resconrec.2019.02.010
关键词
LCA; Plastic wastes; Plant capacities; Mechanical recycling; Pyrolysis; Gasification
资金
- ExxonMobil Chemical Company
In Singapore, 822,200 tonnes of plastic waste was generated in 2016, with only 7% recycled. Due to the complex nature of plastic waste mixtures, mechanical recycling is often inefficient, leading to a majority of waste being incinerated. In this article, alternative solutions are introduced to address the waste problem, such as recovering valuable fuels from plastics via thermochemical methods. Life cycle assessment (LCA) was adopted to investigate 8 scenarios of plastic waste management options. In a nation with land scarcity, the scales and sizes of each plastic waste recycling/recovery method is also taken into consideration. The results demonstrated how different combinations of four plastics valorization technologies, and associated capacities, affected the potential environmental benefits and drawbacks of plastic waste treatment systems. In order to enable selecting the best option among the 8 scenarios, normalization and weighting was carried out.
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