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RISS 인기검색어
- 검색키워드
- 저자 : ( I. M. Saman K. Ilankoon ) (검색결과 1 건)
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( I. M. Saman K. Ilankoon ),( Kai Dean Kang ),( Diyasha Sengupta ),( Lian Zhang ) 한국폐기물자원순환학회 2022 ISSE 초록집 Vol.2022 No.-
The global e-waste generation was estimated at 53.6 million tonnes in 2019, and Asia generated a significant fraction of it or about 47%. However, the global e-waste monitor report 2020 identified that about 12% of the e-waste in Asia was only adequately collected and recycled in 2019. Since the fate of the remaining 78% is undocumented, it will likely be dumped, traded or recycled under inferior conditions. These figures highlight that e-waste management frameworks and methodologies are ineffective in developing countries, and household e-waste items are often mixed with other solid waste streams, such as food waste. The general public does not typically recognise the hazards and opportunities associated with e-waste, contributing to low e-waste collection rates. In addition, the lack of legislative frameworks, especially for household e-waste, is identified as another contributing factor. On the other hand, informal and small tools-based mechanical recycling methods are employed in the informal sector. In contrast, hydrometallurgical recycling techniques often extract a few metals, such as gold, copper, and silver, in semi-formal businesses. Final liquid and solid waste management aspects relevant to these hydrometallurgical operations are not often reported, and the companies hire a waste management company to deliver these tasks. Thus, the sustainability of these value recovery operations is questionable. This leaves much scope for improvement in e-waste management and value recovery operations. The research studies performed by the authors identified that extended producer responsibility (EPR) frameworks are mandatory in developing countries. With those, the informal e-waste sector can be linked with the formal sector resulting in improved e-waste collecting rates and sustainable value recovery operations. In summary, the results of this work are closely aligned with the United Nations sustainable development goals (SDGs).
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