Speciation of Zn in WtE fly ash residues after wet treatment
Waste-to-energy fly ash can be repurposed if treated to limit the leaching of potentially toxic elements such as Zn. Ashes with lime additives can be stabilised via gypsum formation, while those without additives are better suited for acid-leaching treatment (and material recovery). In this study, ashes from grate-fired boilers – three without lime addition and one ash with lime addition – were tr
