Sequential extraction procedure of municipal solid waste incineration (MSWI) bottom ash targeting grain size and the amorphous fraction

Autor: C. De Matteis, L. Mantovani, M. Tribaudino, A. Bernasconi, E. Destefanis, C. Caviglia, S. Toller, E. Dinelli, V. Funari
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Environmental Science, Vol 11 (2023)
Druh dokumentu: article
ISSN: 2296-665X
DOI: 10.3389/fenvs.2023.1254205
Popis: Introduction: Bottom ash (BA) constitutes a significant by-product obtained during the incineration of municipal solid waste in waste-to-energy (WtE) plants. BA is a heterogeneous material made of different fractions, glass, minerals, metals, and unburned residual organic matter. Due to the non-hazardous nature of the unburned material, BA can be effectively recycled, becoming a valuable resource. However, BA displays a high content of potentially toxic elements (PTEs) within its finer grain size. The presence of these elements raises concerns regarding the potential toxicity associated with BA.Materials and methods: The release of PTEs in the smaller fraction (0.063–0.2 mm; 0.3–0.5 mm; 2–4 mm; bulk
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