Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara"

Environmental Science and Pollution Research International
Rada KrgovićJelena Mutić

Abstract

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 bioavailability 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...Continue Reading

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Mar 30, 2016·Environmental Science and Pollution Research International·Violeta StefanovićŽivoslav Tešić
Aug 19, 2017·Environmental Science and Pollution Research International·Suchita MukhopadhyaySubodh Kumar Maiti

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