Journal
ENVIRONMENTAL POLLUTION
Volume 287, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2021.117618
Keywords
IBA; Phase change; Leaching behavior; Recycling and reuse
Categories
Funding
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Special Project for introducing Foreign Talents [BX2019015]
- Key Achievement Cultivation Plan Project of Nanjing Forestry University
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This review discusses the geoenvironmental impacts of incineration bottom ashes (IBA) of municipal solid waste (MSW) and summarizes the leaching behaviors of IBA based on literature. Various treatments can affect the mineral phases and microstructure of IBA, influencing its leaching properties.
Incineration technology has been widely employed, as an effective method to decrease the volume of waste disposal. In this review, relationships between municipal solid waste (MSW) inputs and residues after combustion-specifically, the incineration bottom ashes (IBA) of MSW, were discussed, with an emphasis on the geoenvironmental impacts of IBA associated with the complex crystal and amorphous phase reactions and changes during combustion and from their downstream treatments, whereas, their influences on IBA leaching behaviors are considered as another focus. This review summarizes the IBA leaching behaviors based on literature, showing the leaching variabilities induced by natural weathering and artificial intervention conditions, such as accelerated carbonation, washing treatment, stabilization/solidification, and thermal treatments, all of which can be attributed to changes of mineral phases and microstructure. It helps to understand IBA characteristics and transitions in application-environment nexus, and better reuse it for multiple applications.
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