Phytoremediation of mercury using Eichhornia crassipes (Mart.) Solms
by Upma Narang, Renu Bhardwaj, S.K. Garg, A.K. Thukral
International Journal of Environment and Waste Management (IJEWM), Vol. 8, No. 1/2, 2011

Abstract: Roots of Eichhornia crassipes were found to accumulate maximum content of mercury (92.21 μg g⁻¹ dry wt) in the roots of plants treated with 1000 μg l⁻¹ 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⁻¹) 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⁻¹, which is carrier-mediated and follows Michaelis–Menten kinetics. Type-2 mechanism occurs at concentrations up to 1000 μg l⁻¹.

Online publication date: Sat, 24-Jan-2015

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