Bioremoval of aqueous lead using Lemna minor

Nicholas A. Hurd, Steven P Sternberg

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)278-288
Number of pages11
JournalInternational Journal of Phytoremediation
Volume10
Issue number4
DOIs
StatePublished - Jul 1 2008

Keywords

  • Bioremediation
  • Bioseparation
  • Duckweed
  • Modeling
  • Sorbtion

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