Series Vol. 23 , 07 November 2023
* Author to whom correspondence should be addressed.
The pollution of plastic materials has seriously affected global environmental problems. Polyolefin materials are widely used as raw materials for plastics. This is due to their practical physical properties and low cost. However, there are major challenges in the disposal of waste polyolefin materials. Recycling and degradation have emerged as the two main approaches for the treatment of plastic waste today. Through a comprehensive literature analysis and review of methods, this paper provides an in-depth study of recycling and biodegradation of polyolefin materials. The study is based on a detailed search of several papers through Google Scholar in order to provide valuable insights into the different methods that are used for the recycling and biodegradation of polyolefins. The review summarizes the most effective technologies for recycling and biodegradation, while highlighting recent advances and future directions in the field. In particular, the research has focused on two main approaches: closed-loop recycling and chemical recovery. The latter technology is aimed at non-polluting biodegradation, which has become an increasingly important topic of interest for the scientific community. Given the urgency of the environmental challenges posed by polyolefins, the development of efficient and sustainable recycling and degradation methods is essential to create a circular economy and ensure a sustainable future.
polyolefins, closed-loop recycling, chemical recycling, biodegradation
1. Eriksen, M., Cowger, W., Erdle, L. M., Coffin, S., Villarrubia-Gómez, P., Moore, C. J., ... & Wilcox, C. (2023). A growing plastic smog, now estimated to be over 170 trillion plastic particles afloat in the world’s oceans—Urgent solutions required. Plos one, 18(3), e0281596.
2. Rahimi, A., & García, J. M. (2017). Chemical recycling of waste plastics for new materials production. Nature Reviews Chemistry, 1(6), 0046.
3. Ammala, A., Bateman, S., Dean, K., Petinakis, E., Sangwan, P., Wong, S., ... & Leong, K. H. (2011). An overview of degradable and biodegradable polyolefins. Progress in Polymer Science, 36(8), 1015-1049.
4. Jubinville, D., Esmizadeh, E., Saikrishnan, S., Tzoganakis, C., & Mekonnen, T. (2020). A comprehensive review of global production and recycling methods of polyolefin (PO) based products and their post-recycling applications. Sustainable materials and technologies, 25, e00188.
5. Häußler, M., Eck, M., Rothauer, D., & Mecking, S. (2021). Closed-loop recycling of polyethylene-like materials. Nature, 590(7846), 423-427.
6. Govindarajan, D., Sivagami, K., Nambi, I. M., Ravikumar, B. N., Kumar, M., Chakraborty, S., & Reddy, R. (2023). Thermo-Chemical conversion of polyolefin-based facemask using bench-scale pyrolysis system. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 45(1), 542-556.
7. Varyan, I., Kolesnikova, N., Xu, H., Tyubaeva, P., & Popov, A. (2022). Biodegradability of polyolefin-based compositions: Effect of natural rubber. Polymers, 14(3), 530.
8. Sarker, R. K., Chakraborty, P., Paul, P., Chatterjee, A., & Tribedi, P. (2020). Degradation of low-density poly ethylene (LDPE) by Enterobacter cloacae AKS7: a potential step towards sustainable environmental remediation. Archives of Microbiology, 202(8), 2117-2125.
9. Nag, M., Lahiri, D., Dutta, B., Jadav, G., & Ray, R. R. (2021). Biodegradation of used polyethylene bags by a new marine strain of Alcaligenes faecalis LNDR-1. Environmental Science and Pollution Research, 28, 41365-41379.
10. Yang, S. S., Ding, M. Q., He, L., Zhang, C. H., Li, Q. X., Xing, D. F., ... & Wu, W. M. (2021). Biodegradation of polypropylene by yellow mealworms (Tenebrio molitor) and superworms (Zophobas atratus) via gut-microbe-dependent depolymerization. Science of the Total Environment, 756, 144087.
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.