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Biotecnología en el Sector Agropecuario y Agroindustrial
versão impressa ISSN 1692-3561
Resumo
BENITEZ, RICARDO; CALERO, VÍCTOR; PENA, ENRIQUE e MARTIN, JAIME. EVALUATION OF THE KINETICS OF ACCUMULATION OF CHROMIUM IN WATER HYACINTH (Eichhornia crassipes). Rev.Bio.Agro [online]. 2011, vol.9, n.2, pp.66-73. ISSN 1692-3561.
Eichhornia crassipes is a fast growing plant distributed in almost all tropical countries, which can tolerate conditions of metal contamination or eutrophication of bodies of lentic and lotic waters. This plant has become an environmental problem, however, has sparked interest in the treatment of metal pollution in agricultural soils and water bodies. The toxicity of metals is a serious problem with this reasoning, since it affects the storage capacity and transmission into the food chain. In this study we evaluated the behavior of the rates of accumulation of chromium in aquatic macrophyte Eichhornia crassipes, at concentrations of 30, 60 and 90 mg/L, using a randomized experimental design with control and three replicates per level. Studies carried out in glass aquaria, showed sites of accumulation of chromium in the plant, establishing the kinetics of accumulation.
Palavras-chave : Eichhornia crassipes; Water hyacinth; Kinetics; Accumulation; Chrome.