Metal uptake in three different plant species used for cold climate biofilter systems
2014 (English)Conference paper, Presentation (Refereed)
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
Research subject Urban Water Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-39039Local ID: d9fad5b5-1308-47aa-aed5-da037c640b77OAI: oai:DiVA.org:ltu-39039DiVA: diva2:1012547
International Conference on Urban Drainage : 07/09/2014 - 12/09/2014
Godkänd; 2014; 20141006 (laisoe)2016-10-032016-10-03Bibliographically approved