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Changes of fly ash properties during the ageing
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-8843-043X
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-9715-975X
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0003-2544-6087
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0001-7158-4662
2015 (English)In: Journal of environmental engineering, ISSN 0733-9372, E-ISSN 1943-7870, Vol. 141, no 5, article id 4014083Article in journal (Refereed) Published
Abstract [en]

Aging of refuse-derived fuel (RDF) fly ashes was investigated in a long-term laboratory experiment. Aging affected the chemical stability of RDF fly ash in terms of leaching behavior, ANC, and mineralogical transformations. The design of experiment model evaluation showed that the use of RDF ashes in a top cover liner construction has the following advantages: most of the investigated hazardous elements like Pb, Cl, Cr, Cu, etc., will not be released from the ashes, and their buffer capacity will increase with time. However, aging has the disadvantage that leaching of Zn and SO 4 is likely to increase. The multivariate data analysis of the coefficients of variation did not reveal any systematic errors in the performance of the experiment. However, batch leaching test not always reflect the real situation in the landfill top cover environment.

Place, publisher, year, edition, pages
2015. Vol. 141, no 5, article id 4014083
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-8256DOI: 10.1061/(ASCE)EE.1943-7870.0000910ISI: 000353994400004Scopus ID: 2-s2.0-84928011872Local ID: 6bc7765e-e807-45da-9caf-9969de602d29OAI: oai:DiVA.org:ltu-8256DiVA, id: diva2:981147
Note
Validerad; 2015; Nivå 2; 20130923 (evebra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Brännvall, EvelinaAndreas, LaleSjöblom, RolfLagerkvist, Anders

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