Miao Yu, von Jouanne Annette, Yokochi Alexandre
School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China.
School of Engineering and Computer Science, Baylor University, Waco, TX 76798, USA.
Polymers (Basel). 2021 Jan 30;13(3):449. doi: 10.3390/polym13030449.
Although plastic is considered an indispensable commodity, plastic pollution is a major concern around the world due to its rapid accumulation rate, complexity, and lack of management. Some political policies, such as the Chinese import ban on plastic waste, force us to think about a long-term solution to eliminate plastic wastes. Converting waste plastics into liquid and gaseous fuels is considered a promising technique to eliminate the harm to the environment and decrease the dependence on fossil fuels, and recycling waste plastic by converting it into monomers is another effective solution to the plastic pollution problem. This paper presents the critical situation of plastic pollution, various methods of plastic depolymerization based on different kinds of polymers defined in the Society of the Plastics Industry (SPI) Resin Identification Coding System, and the opportunities and challenges in the future.
尽管塑料被认为是一种不可或缺的商品，但由于其快速的积累速度、复杂性和缺乏管理，塑料污染已成为全球主要关注的问题。一些政治政策，如中国对塑料垃圾的进口禁令，迫使我们思考消除塑料垃圾的长期解决方案。将废塑料转化为液体和气体燃料被认为是一种有前景的技术，既能消除对环境的危害，又能减少对化石燃料的依赖，而通过将废塑料转化为单体来回收利用是解决塑料污染问题的另一种有效方法。本文介绍了塑料污染的严峻形势、基于塑料工业协会（SPI）树脂识别编码系统中定义的不同种类聚合物的各种塑料解聚方法，以及未来的机遇和挑战。
