Bioremoval of aqueous lead using Lemna minor.

Int J Phytoremediation

Department of Chemical Engineering, University of Minnesota Duluth, Duluth, Minnesota 55812-3025, USA.

Published: June 2009

The aquatic plant Lemna minor (duckweed) was examined for its ability to sorb soluble lead from water under laboratory conditions. The use of biomass as a sorption medium provides a simple alternative separation technology. Laboratory-scale (700-mL) batch reactors containing soil-based sediments were used to expose L. minor to concentrations of 0.0, 5.0, and 10.0 mg/L of lead for 7 d. Overall removal amounts of 95% were observed, with 85% removal occurring within the first day. A sorption process model was developed based on a mass balance and a power law rate of sorption equation.

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http://dx.doi.org/10.1080/15226510802096036DOI Listing

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