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Development of drainage water quality from a landfill cover built with secondary construction materials
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-1343-2465
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: 0000-0002-1442-1573
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: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 35, p. 148-158Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to evaluate the drainage water quality from a landfill cover built with secondary construction materials (SCM), fly ash (FA), bottom ash (BA) sewage sludge, compost and its changes over time. Column tests, physical simulation models and a full scale field test were conducted. While the laboratory tests showed a clear trend for all studied constituents towards reduced concentrations over time, the concentrations in the field fluctuated considerably. The primary contaminants in the drainage water were Cl−, N, dissolved organic matter and Cd, Cu, Ni, Zn with initial concentrations one to three orders of magnitude above the discharge values to the local recipient. Using a sludge/FA mixture in the protection layer resulted in less contaminated drainage water compared to a sludge/BA mixture. If the leaching conditions in the landfill cover change from reduced to oxidized, the release of trace elements from ashes is expected to last about one decade longer while the release of N and organic matter from the sludge can be shortened with about two–three decades. The observed concentration levels and their expected development over time require drainage water treatment for at least three to four decades before the water can be discharged directly to the recipient.

Place, publisher, year, edition, pages
2015. Vol. 35, p. 148-158
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-14899DOI: 10.1016/j.wasman.2014.09.016ISI: 000347591000021PubMedID: 25305684Scopus ID: 2-s2.0-84919873040Local ID: e5628ccd-4603-4b37-a253-cc1d63fad5f6OAI: oai:DiVA.org:ltu-14899DiVA, id: diva2:987872
Note
Validerad; 2015; Nivå 2; 20141010 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Travar, IgorAndreas, LaleKumpiene, JurateLagerkvist, Anders

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