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Chemically stabilized arsenic-contaminated soil for landfill covers
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-1442-1573
Universita Degli Studi di Padova.
2014 (English)In: One century of the discovery of arsenicosis in Latin America (1914-2014): As 2014 - proceedings of the 5th international congress on arsenic in the environment / [ed] Marta I. Litter, Boca Raton,Ffla.: CRC Press, 2014, p. 842-843Conference paper, Published paper (Refereed)
Abstract [en]

Arsenic (As) stabilization using zerovalent iron (Fe0) and its combination with peat was investigated in soil used as a pilot scale landfill cover in Northern Sweden. Leachate percolating through a 2 m thick layer of treated and untreated soil was collected in field. Chemical fractionation using sequential extraction, phytotoxicity test with dwarf beans and bioaccessibility tests simulating gastric solution were performed to assess the residual risks to the environment and human health. The results show that the exchangeable As-fraction in stabilized soils decreased when compared to the untreated soil, while other fractions remained unaffected. All the morphological parameters of plants improved and the bioaccessible As-fraction significantly decreased in the Fe-peat treated soil. The analysis of the leachates collected in field showed a substantially decreased As concentration in the Fe-peat amended soil. Further sampling is on-going in order to determine whether or not the treatment is successful in a long-term.

Place, publisher, year, edition, pages
Boca Raton,Ffla.: CRC Press, 2014. p. 842-843
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-32543Local ID: 710f51f6-8b50-4ac1-bcc1-82cd7164fbbeISBN: 978-1-138-00141-1 (print)ISBN: 978-1-315-77888-4 (electronic)OAI: oai:DiVA.org:ltu-32543DiVA, id: diva2:1005777
Conference
International Congress on Arsenic in the Environment : 11/05/2014 - 16/05/2014
Note
Godkänd; 2014; 20141006 (johsod)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Kumpiene, Jurate

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
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  • de-DE
  • en-GB
  • en-US
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  • nn-NB
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  • Other locale
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Output format
  • html
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  • asciidoc
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