Phytoextraction of Ni, Pb and, Cd by duckweeds.

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ID: 38457
2019
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Abstract
Heavy metals phytoextraction potential of swollen duckweed ( Linn.) and lesser duckweed ( Welw.) was determined under greenhouse conditions by exposing to untreated industrial/municipal effluent for a period of 21days. The nickel (Ni), lead (Pb), and cadmium (Cd) concentrations in water samples were measured weekly and in plant biomass at the termination of experiments. Significant differences (<0.05) between initial and final physicochemical parameters and in heavy metal concentrations of plant and water samples were observed. Periodically measured metal concentrations in mediums revealed that removal percentage was dependent on initial Ni (2.15mg L), Pb (1.51mg L), and Cd (0.74mg L) concentrations. The final metal removal percentages were in the sequence of Ni (97%) > Pb (94%) > Cd (90%) when treated with L. as compared to control (9-12% reduction). High biomass production of L. resulted in a large metal reduction in the growth medium and the total plant metal contents were in the sequence of Ni (427µg) > Pb (293µg) > Cd (105µg). The lesser duckweed did not survive under experimental conditions. Based on these results, we concluded that L. is a good candidate for phytoremediation of wastewater.
Reference Key
bokhari2019phytoextractioninternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bokhari, Syeda Huma;Mahmood-Ul-Hassan, Muhammad;Ahmad, Munir;
Journal international journal of phytoremediation
Year 2019
DOI
10.1080/15226514.2019.1566882
URL
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