Artículo
Improvement of Cr phytoremediation by Pistia stratiotes in presence of nutrients
Di Luca, Gisela Alfonsina
; Hadad, Hernán Ricardo
; Mufarrege, María de Las Mercedes
; Maine, Maria Alejandra
; Sanchez, Gabriela Cristina
Fecha de publicación:
01/2013
Editorial:
Taylor & Francis
Revista:
International Journal of Phytoremediation
ISSN:
1522-6514
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The effects of different concentrations of P and N, added separately or combined, on the Cr(III) accumulation capacity of P. stratiotes were studied. Plants and pond water with the addition of contaminant(s) were placed in plastic aquaria. Cr concentration was 5 mg L-1, while P and N concentrations were 5 mg L-1 or 10 mg L-1. Nutrient addition significantly favoured Cr removal and enhanced Cr translocation to leaves. In Cr treatments a high detritus formation from loss of root biomass was observed probably due to its toxicity. Cr was mainly accumulated in the detrital fraction, whereas P and N were retained fundamentally in leaves. A toxic effect was observed in the Cr+P10 and Cr+N10 treatments. These results could be applied to enhance Cr removal efficiency of constructed wetlands using P. stratiotes, where nutrient enrichment could be attained by treating sewage together with the industrial effluents.
Palabras clave:
Metal
,
Free-Floating Macrophites
,
Toxicity
,
Uptake Efficiency
,
Wetlands
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Identificadores
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Sanchez, Gabriela Cristina; Maine, Maria Alejandra; Mufarrege, María de Las Mercedes; Hadad, Hernán Ricardo; Di Luca, Gisela Alfonsina; Improvement of Cr phytoremediation by Pistia stratiotes in presence of nutrients; Taylor & Francis; International Journal of Phytoremediation; 16; 2; 1-2013; 167-178
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