Recycling municipal solid waste incineration fly ash in super-lightweight aggregates by sintering with clay and using SiC as bloating agent

Municipal solid waste incineration (MSWI) fly ash is classified as hazardous waste and requires proper treatments. Sintering of MSWI fly ash for the production of lightweight aggregate (LWA) is a promising treatment technology, while the dependence on natural bloating clay to produce high quality LW...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2022-11, Vol.307, p.135895-135895, Article 135895
Main Authors: Han, Siyu, Song, Yingchun, Ju, Tongyao, Meng, Yuan, Meng, Fanzhi, Song, Mengzhu, Lin, Li, Liu, Mengdan, Li, Jinglin, Jiang, Jianguo
Format: Article
Language:English
Subjects:
Heavy metal immobilization
Lightweight aggregate
MSWI fly ash
Silicon carbide
Thermal treatment
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Summary:Municipal solid waste incineration (MSWI) fly ash is classified as hazardous waste and requires proper treatments. Sintering of MSWI fly ash for the production of lightweight aggregate (LWA) is a promising treatment technology, while the dependence on natural bloating clay to produce high quality LWA has limited its wide application. In this study, by using SiC as a bloating agent, normal clay could be used to produce super-lightweight aggregate (bulk density
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2022.135895