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Accelerated carbonation of steel slags in a landfill cover construction
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0003-0520-796X
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2010 (English)In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 30, no 1, p. 132-139Article in journal (Refereed) Published
Abstract [en]

Steel slags from high-alloyed tool steel production were used in a full scale cover construction of a municipal solid waste (MSW) landfill. In order to study the long-term stability of the steel slags within the final cover, a laboratory experiment was performed. The effect on the ageing process, due to i.e. carbonation, exerted by five different factors resembling both the material characteristics and the environmental conditions is investigated. Leaching behaviour, acid neutralization capacity and mineralogy (evaluated by means of X-ray diffraction, XRD, and thermogravimetry/differential thermal analysis, TG/DTA) are tested after different periods of ageing under different conditions.Samples aged for 3 and 10 months were evaluated in this paper. Multivariate data analysis was used for data evaluation. The results indicate that among the investigated factors, ageing time and carbon dioxide content of the atmosphere were able to exert the most relevant effect. However, further investigations are required in order to clarify the role of the temperature.

Place, publisher, year, edition, pages
2010. Vol. 30, no 1, p. 132-139
Keywords [en]
Landfill Technology, Other technology - Environmental engineering
Keywords [sv]
Upplagsteknik, Övriga teknikvetenskaper - Miljöteknik
National Category
Water Engineering Other Environmental Engineering
Research subject
Urban Water Engineering; Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-12037DOI: 10.1016/j.wasman.2009.08.007ISI: 000273195100017PubMedID: 19836224Scopus ID: 2-s2.0-70649111296Local ID: b172ec40-bf19-11de-b769-000ea68e967bOAI: oai:DiVA.org:ltu-12037DiVA, id: diva2:984987
Note
Validerad; 2010; 20091022 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Diener, SilviaAndreas, LaleHerrmann, IngaEcke, HolgerLagerkvist, Anders

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