Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara"
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2015
Authors
Krgovic, RadaTrifković, Jelena

Milojković-Opsenica, Dušanka

Manojlović, Dragan

Marković, Marijana

Mutić, Jelena

Article (Published version)

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The objectives of this study were to determine the concentrations of Pb, Cd, As, Cr, Cu, Co, Ni, Zn, Ba, Fe, Al and Ag in Erigeron canadensis L. growing on fly ash landfill of power plant "Kolubara", Serbia. The content of each element was determined in every part of plant separately (root, stalk and inflorescence) and correlated with the content of elements in each phase of sequential extraction of fly ash. In order to ambiguously select the factors that are able to decidedly characterize the particular part of plant, principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) were performed. The bioconcentration factors and translocation factors for each metal were calculated in order to determine the feasibility of the use of plant E. canadensis L. for phytoremediation purpose. There were strong positive correlations between metals in every part of plant samples, and metals from pseudo total form of sequential extraction indicate that the bioavailabil...ity of elements in fly ash is similarly correlated with total form. Retained Al, Fe, Cr and Co in the root indicate its suitability for phytostabilization. This plant takes up Cd and Zn from the soil (bioconcentration factors (BCFs) greater than 1), transporting them through the stalk into the inflorescence (translocation factors (TFs) higher than 1). Regarding its dominance in vegetation cover and abundance, E. canadensis L. can be considered adequate for phytoextraction of Cd and Zn from coal ash landfills at Kolubara.
Keywords:
Phytoremediation / Bioconcentration factor / Ash / Heavymetal accumulation / Erigeron canadensis LSource:
Environmental Science and Pollution Research, 2015, 22, 14, 10506-10515Publisher:
- Springer Heidelberg, Heidelberg
Projects:
- Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)
- Structure-properties relationships of natural and synthetic molecules and their metal complexes (RS-172017)
DOI: 10.1007/s11356-015-4192-5
ISSN: 0944-1344
PubMed: 25728199