4.7 Review

COVID-19 and industrial waste mitigation via thermochemical technologies towards a circular economy: A state-of-the-art review

期刊

JOURNAL OF HAZARDOUS MATERIALS
卷 423, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.jhazmat.2021.127215

关键词

Thermochemical; Circular economy; Waste mitigation; COVID-19; Torrefaction and pyrolysis; Waste-to-energy

资金

  1. Ministry of Science and Technology, Taiwan, R.O.C. [MOST 109-2221-E-006-040-MY3, MOST 110-2622-E-006-001-CC1, MOST 110-3116-F-006-003-]
  2. Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung Uni-versity (NCKU)

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This comprehensive review focuses on different thermochemical treatment options for industrial waste and COVID-19 medical waste streams, emphasizing the crucial role of thermochemical conversion platforms in achieving a circular economy in the industrial sector. Various strategies for waste mitigation through thermochemical processes are discussed.
The increasing awareness of waste circular economy has motivated valorization strategies for minimizing resource consumption and waste production in the private sector. With the rise of various industrial wastes and with the emergence of COVID-19 wastes, a sustainable approach is needed to mitigate the growing concern about wastes. Thermochemical treatment technologies in the form of direct combustion, torrefaction, pyrolysis, and gasification have been identified to have vital roles in the value-creation of various waste streams. Moreover, the alignment of thermochemical processes for waste mitigation concerning the circular economy framework needs to be established. Accordingly, a comprehensive review of the different thermochemical treatment options for industrial and the novel COVID-19 medical wastes streams is conducted in this study. This review focuses on highlighting the instrumental role of thermochemical conversion platforms in achieving a circular economy in the industrial sector. Various strategies in waste mitigation through various thermochemical processes such as management, recovery, reduction, and treatment are discussed. The results show that thermochemical technologies are beneficial in addressing the sustainability concerns on mitigating wastes from the industrial sector and wastes brought by the COVID-19 pandemic. This also includes the current issues faced as well as future perspectives of the thermochemical conversion technologies.

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