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Lué-Merú Marcó Parra, Gosmyr Torres, Adolfo David Arenas, Erick Sánchez, and Korina Rodríguez

Abstract

The treatment of waste waters by bioremediation is nowadays an interesting approach due to low cost, simplicity, and the quality of being more environment friendly as compared to other remediation techniques. Certain plants as Lemna minor are able to remove heavy metals from contaminated waters. The removal efficiency of this plant was evaluated with different experiments for the contaminants arsenic, mercury, lead, chromium, copper, and zinc. The elements were monitored in water as function of time during a period of 15-25 days, for the experiments using plants, in contaminated waters and controls, with and without plants. The foliar tissues were also analyzed to determine the mass of contaminant accumulated by the specie. The removal efficiency varied from 3 to 30% depending on the element. The contaminants did not affect significantly the agronomical behavior of the Lemna minor at the levels used in the experiments (low levels). The plant is well-suited for the phytoremediation in particular mercury phytoremediation.

Keywords

Bioremediation • Mercury • Arsenic • Lead • Chromium • Zinc • Copper

L.-M.M. Parra (H) • G. Torres • A.D. Arenas • E. Sánchez • K. Rodríguez Dpto. de Química y Suelos, Universidad Centroccidental Lisandro Alvarado, Cabudare, Venezuela e-mail: [email protected]

P. Ahmad and M.N.V. Prasad (eds.), Abiotic Stress Responses in Plants: Metabolism, Productivity 451

and Sustainability, DOI 10.1007/978-1-4614-0634-1_24, © Springer Science+Business Media, LLC 2012

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