(2021) Environmental Pollution_Achievements in pyrolysis process in E-waste management sector

Joo J., Kwon E.E., Lee J.

(Elsevier Ltd) Environmental Pollution ISSN: 2697491 Vol.287 Issue. Article No.117621 DOI: 10.1016/j.envpol.2021.117621

Many aspects of modern life of our civilization are associated with using electrical and electronic devices (EEE). Ever-increasing demand for high-performance EEE and accelerated technological development make the replacement of EEE become frequent. This leads to the generation of a tremendous amount of electronic waste (E-waste). Challenges of the management of E-waste have recently arisen out of a dearth of proper technologies to treat E-waste. Pyrolysis process can thermochemically treat waste materials that have a complicated nature and inhomogeneity. This article gives a systematic review as an effort to tackle the challenges in the context of achievements in pyrolysis process in E-waste management sector. Pyrolysis mechanism and types of pyrolysis processes and pyrolysis reactors are first discussed. Various pyrolysis technologies applied to the E-waste treatment are then summarized and compared to each other. Points to be considered for further research and pending challenges of E-waste pyrolysis are also discussed. The pyrolysis treatment of E-waste is not yet fully industrialized mostly because of high costs. However, there should be much room for further developing the E-waste pyrolysis; hence, its industrialization and commercialization is just a matter of time. © 2021 Elsevier Ltd

This work was supported by a National Research Foundation of Korea (NRF) grant, funded by the Korean Government (Ministry of Science and ICT) (No. NRF-2020R1C1C1003225 ). This work was also supported by C1 Gas Refinery Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning ( 2015M3D3A1A01064899 ).