Identification of recycling pathways for secondary aluminum dross with integrated hybrid life cycle assessment
Article
Article Title | Identification of recycling pathways for secondary aluminum dross with integrated hybrid life cycle assessment |
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ERA Journal ID | 5889 |
Article Category | Article |
Authors | Xiao, Luyin, Wang, Yao, Zheng, Rufeng, Liu, Jingru, Zhao, Jun, Maraseni, Tek and Qian, Guangren |
Journal Title | Resources, Conservation and Recycling |
Journal Citation | 193 |
Article Number | 106987 |
Number of Pages | 9 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0921-3449 |
1879-0658 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.resconrec.2023.106987 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0921344923001234 |
Abstract | The development of secondary aluminum dross (SAD) has become a hot topic to deal with aluminum resource scarcity and landfill risk as hazardous waste. This study first compares the environmental impact, resource consumption, and economic performance of four emerging SAD reutilization methods with an integrated hybrid life cycle assessment (IHLCA). The results show that IHLCA captures larger environmental and economic impacts than process LCA (PLCA), especially for midpoint indicators, such as human toxicity potential, acidification potential, freshwater aquatic ecotoxicity. Furthermore, multi-component recovery from SAD is not always the best choice. The multi-component recovery scenario of SAD-to-alumina with alkali has the smallest environmental impact and resource consumption, while SAD-to-PAC with acid is the worst due to the massive use of HCl. Particularly, SAD-to-calcium aluminate with single-component recovery stands out due to its best economic performance. The given results provide new perspective on making a sustainable decision for SAD recovery industrialization. |
Keywords | Secondary aluminum dross; Integrated hybrid life cycle assessment; Sustainability; Environmental impact |
ANZSRC Field of Research 2020 | 410404. Environmental management |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Shanghai University, China |
Shanghai Institute of Geological Survey, China | |
Chinese Academy of Sciences, China | |
Centre for Sustainable Agricultural Systems |
https://research.usq.edu.au/item/z0001/identification-of-recycling-pathways-for-secondary-aluminum-dross-with-integrated-hybrid-life-cycle-assessment
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