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Metal uptake in three different plant species used for cold climate biofilter systems
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0001-5548-4397
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0003-1725-6478
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0001-9541-3542
2014 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

Stormwater biofilters have been developed without consideration of their cold climate design and performance. Vegetation has been shown to play an important role in biofilter effectiveness. Due to the effect of winter conditions on plants (no/reduced growth, high salinity from road salt), winter-related factors affecting biofilter vegetation, and especially the selection of vegetation for cold climate biofilter systems, need further investigation. The impacts of temperature, salt and the presence of a submerged zone on Cd, Cu, Pb and Zn uptake in three native wet/drought tolerant plant types, Juncus conglomeratus, Phalaris arundinacea and Carex panacea, were thus examined in 24 biofilter mesocosms under controlled laboratory conditions. The shoots of all three plant species accumulated higher metal concentrations than the roots. Generally, a higher metal uptake was observed under cold conditions. No significant difference in metal uptake was found between different biofilter combinations, indicating that these three plant species were not particularly affected by different temperatures and/or the presence/absence of salt and a submerged zone. The results of this study indicate the potential to use the investigated plant species for targeted cold climate biofilter design.

Place, publisher, year, edition, pages
2014.
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-39039Local ID: d9fad5b5-1308-47aa-aed5-da037c640b77OAI: oai:DiVA.org:ltu-39039DiVA: diva2:1012547
Conference
International Conference on Urban Drainage : 07/09/2014 - 12/09/2014
Note
Godkänd; 2014; 20141006 (laisoe)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-10-19Bibliographically approved

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fulltext(161 kB)155 downloads
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