Bioaccumulation and rhizofiltration potential of Pistia stratiotes L. for mitigating water pollution in the Egyptian wetlands

The bioaccumulation and rhizofiltration potential of P. stratiotes for heavy metals were investigated to mitigate water pollution in the Egyptian wetlands. Plant and water samples were collected monthly through nine quadrats equally distributed along three sites at Al-Sero drain in Giza Province. Th...

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Bibliographic Details
Published inInternational journal of phytoremediation Vol. 20; no. 5; pp. 440 - 447
Main Authors Galal, Tarek M, Eid, Ebrahem M, Dakhil, Mohammed A, Hassan, Loutfy M
Format Journal Article
LanguageEnglish
Published United States Taylor & Francis Ltd 16.04.2018
Subjects
Araceae
Bioaccumulation
Biodegradation, Environmental
Cadmium
Chromium
Cobalt
Copper
Egypt
Heavy metals
Iron
Lead
Leaves
Manganese
Metal concentrations
Metals
Metals, Heavy - analysis
Nickel
Phytoremediation
Pistia stratiotes
Plant roots
Pollution
Roots
Translocation
Water analysis
Water Pollutants, Chemical - analysis
Water Pollution
Water sampling
Wetlands
Zinc
Egypt
Water lettuce
wetlands
pollution
heavy metals
pollutants
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Summary:The bioaccumulation and rhizofiltration potential of P. stratiotes for heavy metals were investigated to mitigate water pollution in the Egyptian wetlands. Plant and water samples were collected monthly through nine quadrats equally distributed along three sites at Al-Sero drain in Giza Province. The annual mean of the shoot biomass was 10 times that of the root. The concentrations of shoot heavy metals fell in the order: Fe < Mn < Cr < Pb < Cu < Zn < Ni < Co < Cd, while that of the roots were: Fe < Mn < Cr < Pb < Zn < Ni < Co < Cu < Cd. The bio-concentration factor (BCF) of most investigated heavy metals, except Cr and Pb, was greater than 1000, while the translocation factor (TF) of most investigated metals, except Pb and Cu, did not exceed one. The rhizofiltration potential (RP) of heavy metals was higher than 1000 for Fe, and 100 for Cr, Pb and Cu. Significant positive correlations between Fe and Cu in water with those in plant roots and leaves, respectively were recorded, which, in addition to the high BCF and RP, indicate the potential use of P. stratiotes in mitigating these toxic metals.
ISSN:1522-6514
1549-7879
DOI:10.1080/15226514.2017.1365343