Lead and nickel removal using Microspora and Lemna minor

Nicholas R. Axtell, Steven P Sternberg, Kathryn Claussen

Research output: Contribution to journalArticle

255 Citations (Scopus)

Abstract

Aquatic plants can remove heavy metal contamination from the surrounding water. This study examined the ability of Microspora (a macro-alga) and Lemna minor (an aquatic plant) to remove soluble lead and nickel under various laboratory conditions. Microspora was tested in a batch and semi-batch process for lead removal. L. minor was tested in a batch process with lead and nickel to examine the potential competition between metals for adsorption. The Microspora was exposed to 39.4 mg/l of lead over 10 days. Results show up to 97% of the lead was removed in the batch process and 95% in the semi-batch process. Initial concentrations below 50 mg/l (a dose that kills the algae) had no effect on the final concentration. The L. minor was exposed to lead and nickel using a full 32 factorial experimental design (nine experiments, plus replications). Initial lead concentrations were 0.0, 5.0, and 10.0 mg/l, and nickel concentrations were 0.0, 2.5, and 5.0 mg/l in the experiment. Overall, L. minor removed 76% of the lead, and 82% of the nickel. No synergistic/antagonistic effect was noted for the multiple metal experiments, in terms of metal removal.

Original languageEnglish (US)
Pages (from-to)41-48
Number of pages8
JournalBioresource Technology
Volume89
Issue number1
DOIs
StatePublished - Jan 1 2003

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Nickel
nickel
Lead
Metals
Algae
aquatic plant
metal
Experiments
macroalga
Heavy Metals
experiment
Design of experiments
Heavy metals
Macros
removal
experimental design
Contamination
Adsorption
alga
heavy metal

Keywords

  • Bioremoval
  • Phytoremediation

Cite this

Lead and nickel removal using Microspora and Lemna minor. / Axtell, Nicholas R.; Sternberg, Steven P; Claussen, Kathryn.

In: Bioresource Technology, Vol. 89, No. 1, 01.01.2003, p. 41-48.

Research output: Contribution to journalArticle

Axtell, Nicholas R. ; Sternberg, Steven P ; Claussen, Kathryn. / Lead and nickel removal using Microspora and Lemna minor. In: Bioresource Technology. 2003 ; Vol. 89, No. 1. pp. 41-48.
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