Enrichment and distribution of 24 elements within the sub-sieve particle size distribution ranges of fly ash from wastes incinerator plants. (1st December 2017)

• Record Type: Journal Article
• Authors: Raclavská, Helena; Corsaro, Agnieszka; Hartmann-Koval, Silvie; Juchelková, Dagmar
• Is Part Of: Journal of environmental management. Volume 203:Part 3(2017)
• Page Start: 1169
• Page End: 1177
• Publication Date: 2017-12-01
• Subjects: Enrichment -- Particle size distribution -- Fly ash -- Wastes -- Incineration; Environmental policy -- Periodicals; Environmental management -- Periodicals; Environment -- Periodicals; Ecology -- Periodicals; 363.705
• DOI: 10.1016/j.jenvman.2017.03.073
• Languages: English
• ISSNs: 0301-4797

Abstract

Abstract: The management of an increasing amount of municipal waste via incineration has been gaining traction. Fly ash as a by-product of incineration of municipal solid waste is considered a hazardous waste due to the elevated content of various elements. The enrichment and distribution of 24 elements in fly ash from three wastes incinerators were evaluated. Two coarse (>100 μm and <100 μm) and five sub-sieve (12–16, 16–23, 23–34, 34–49, and 49–100 μm) particle size fractions separated on a cyclosizer system were analyzed. An enhancement in the enrichment factor was observed in all samples for the majority of elements in >100 μm range compared with <100 μm range. The enrichment factor of individual elements varied considerably within the samples as well as the sub-sieve particle size ranges. These variations were attributed primarily to: (i) the vaporization and condensation mechanisms, (ii) the different design of incineration plants, (iii) incineration properties, (iv) the type of material being incinerated, and (v) the affinity of elements. Highlights: The enrichment and distribution of 24 elements in fly ash were evaluated. Coarse and sub-sieve particle size fractions of fly ash were analyzed. The enrichment of individual elements varied considerably within the samples. The enrichment of elements varied greatly within the sub-sieve particle size ranges.