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Thermal decomposition of municipal solid waste fly ash and desorption of polychlorinated dibenzo-p-dioxins and furans from fly ash surfaces
Umeå University, Faculty of Science and Technology, Department of Chemistry. Industrial Doctoral School, Umeå University, Umeå, Sweden.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
2016 (English)In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 23, no 22, p. 22843-22851Article in journal (Refereed) Published
Abstract [en]

Surfaces of fly ashes from three Swedish MSW incinerating plants were extensively characterized to better predict their involvement in the generation of persistent organic pollutants. The ashes were then subjected to thermal treatment at 400 °C in sealed glass ampoules to track the decomposition polychlorinated dibenzo-p-dioxins and furans (PCDD and PCDF). Temperature programmed desorption experiments in the 30–900 °C range also enabled monitoring of thermally decomposing ashes by Fourier Transform Infrared (FTIR) spectroscopy as well as thermally desorbing effluent gases by mass spectrometry. In addition, one ash was doped with 13C-labelled PCDD and PCDF to evaluate the potential of the experimental setup for elucidating the thermal desorption of the organic molecules. It was found that in ashes with high carbon content PCDD and PCDF decomposition were led pronounced, and that PCDD degraded more readily than PCDF.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2016. Vol. 23, no 22, p. 22843-22851
Keywords [en]
MSW fly ash, Surface characterization, PCDD/PCDF, Thermal desorption, Thermal decomposition
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-128704DOI: 10.1007/s11356-016-7495-2ISI: 000387602800054OAI: oai:DiVA.org:umu-128704DiVA, id: diva2:1055650
Available from: 2016-12-13 Created: 2016-12-13 Last updated: 2018-06-09Bibliographically approved

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Weidemann, EvaLundin, LisaBoily, Jean-Francois

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