Inderscience Publishers

Phytoremediation of mercury using Eichhornia crassipes (Mart.) Solms

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Roots of Eichhornia crassipes were found to accumulate maximum content of mercury (92.21 μg g
dry wt) in the roots of plants treated with 1000 μg l
concentration of mercuric acetate on 14th day of treatment. The bioconcentration factor (BCF) was found to be highest for lowest mercury concentrations (1 μg l
) in the medium. The uptake of mercury follows dual pattern of ion uptake. Type-1 mechanism operates at mercury concentrations up to 100 μg l
, which is carrier-mediated and follows Michaelis?Menten kinetics. Type-2 mechanism occurs at concentrations up to 1000 μg l

Keywords: mercury, phytoremediation, Eichhornia crassipes, BCF, bioconcentration factors, Michaelis-Menten kinetics, waste management, environmental pollution

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