Redistribution of mineral phases of incineration bottom ash by size and magnetic separation and its effects on the leaching behaviors
| Autor: | Wei Ping Chan, Kumaran S, Ke Yin, Wen Qian Chen, Naziah Mohamad Latiff, O. Tamilselvam, Grzegorz Lisak, Stephan Heberlein |
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| Přispěvatelé: | School of Civil and Environmental Engineering, Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Centre |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Minerals
Yield (engineering) Chemistry Health Toxicology and Mutagenesis Magnetic Phenomena Metallurgy Magnetic separation General Medicine Incineration Toxicology Solid Waste Pollution Coal Ash Ferrous Environmental engineering [Engineering] Bottom ash Phase (matter) Metals Heavy Leaching Redistribution (chemistry) Leaching (metallurgy) Mineral Phase |
| Popis: | Size and magnetic separation of incineration bottom ash (IBA) are common for ferrous metals recovery, however, their influences on the mineral phase and the element redistribution, and subsequently the induced variation of metal leaching potential herein remain limited understanding. The lack of research in this field may misunderstand IBA performances, cause confused results for comparison among various studies, and potentially lead to biased conclusions. We herein quantitatively investigate the effects of size and magnetic separation on the IBA based on element distribution, leaching behavior, morphology, and mineralogy with statistical analysis. For preparation, sieving was performed with the original IBA (to obtain 7 size-fractions termed as OR1-7, respectively), followed by magnetic separation of each, to further yield magnetic fractions (MF1-7) to discriminate nonmagnetic fractions (NF1-7). In this study, we show that size and magnetic separation may pose significant yet different impacts on different fractions, which would affect their leaching potential concerning their respective downstream applications. The authors would thank for financial supports by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), Jiangsu Special Project for introducing Foreign Talents (BX2019015), and Key Achievement Cultivation Plan Project of Nanjing Forestry University. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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