Detailed characterization of particle size fractions of municipal solid waste incineration bottom ash

Abstract

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Particle Size and Potential Toxic Element Speciation in Municipal Solid Waste Incineration (MSWI) Bottom Ash

“…This was systematically verified in a recent investigation that sorted the BA in a range of different grain sizes. BA sorting produces new waste with the further disadvantage that smaller sized grains provide a larger reaction surface and, possibly, higher leaching of heavy metals already present at significant concentrations [14,15,[23][24][25]. Recovery of the smaller fraction of the BA was proposed in regard to pyroxene glass ceramics by heating at a high temperature [26].…”

Metals Leaching in Permeable Asphalt Pavement with Municipal Solid Waste Ash Aggregate

“…Numerous studies were conducted on the physicochemical and engineering properties of MSWI-BA. It is concluded that MSWI-BAA made by fresh MSWI-BA after being pretreated, has a good particle size distribution and similar properties to natural aggregate and is suitable to be used in asphalt mixtures and cement concrete [4,5,9,13,14,19,20]. Some studies have consequently used MSWI-BAA to partially replace natural aggregate in asphalt mixtures.…”

Characterisation and partition of valuable metals from WEEE in weathered municipal solid waste incineration bottom ash, with a view to recovering

“…Just as for Al, it is expected that some valuable metals also remain in BA, and that many of these come from incinerated WEEE (del Valle-Zermeño et al, 2017b). Nevertheless, given the highly heterogeneous distribution of the materials in BA (Loginova et al, 2019), the contents of one specific metal may differ as a function of particle size. Therefore, depending on their nature and composition, the metals contained in certain size fractions potentially has recycling value.…”