Abstract
Municipal solid waste incineration (MSWI) fly ash is a by-product from municipal waste incineration. According to incomplete statistics, each year more than one million tons MSWI fly ash was produced in China. Owing to high heavy elements content, widely used disposal methods of landfill are not suitable for MSWI fly ash treatment. In this study, by using MSWI fly ash as raw materials, glass–ceramics was synthesized for the solidification of heavy metals and waste recycle. Process parameters, including composition, heat treatment temperature and time, were studied and optimized. Under optimizing conditions, the product has good properties of density of 3.42 g·cm−3 and Vickers hardness of 6.91 GPa. Moreover, the leaching concentration of heavy metal elements meets allowable values of toxicity characteristic leaching procedure (TCLP). This study offers an alternative for MSWI fly ash recycle.
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Acknowledgements
This study was financially supported by the National Natural Science Foundation of China (Nos. U1360202, 51472030, 51672024 and 51502014), the Fundamental Research Funds for the Central Universities (No. FRF-TP-16-027A3) and the Innovation Project of Yunnan Province New Material Preparation and Processing Key Laboratory (No. 2016cx05).
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Fan, WD., Liu, B., Luo, X. et al. Production of glass–ceramics using Municipal solid waste incineration fly ash. Rare Met. 38, 245–251 (2019). https://doi.org/10.1007/s12598-017-0976-8
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DOI: https://doi.org/10.1007/s12598-017-0976-8