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Artículo

Influence of vegetation on the removal of heavy metals and nutrients in a constructed wetland

Maine, Maria AlejandraIcon ; Suñe, N.; Hadad, Hernán RicardoIcon ; Sanchez, Gabriela Cristina; Bonetto, Carlos AlbertoIcon
Fecha de publicación: 02/2009
Editorial: Elsevier
Revista: Journal of Environmental Management
ISSN: 0301-4797
Idioma: Inglés
Tipo de recurso: Artículo publicado

Resumen

A free water surface wetland was built to treat wastewater containing metals (Cr, Ni, Zn) and nutrients from a tool factory in Argentina. Water, sediment and macrophytes were sampled in the inlet and outlet area of the constructed wetland during three years. Three successive phases of vegetation dominance were developed and three different patterns of contaminant retention were observed. During the Eichhornia crassipes dominance, contaminants were retained in the macrophyte biomass; during the E. crassipes + Typha domingensis stage, contaminants were retained in the sediment and in the T. domingensis dominance stage, contaminants were retained in sediment and in the macrophyte biomass. Removal efficiency was not significantly different among the three vegetation stages, except for NH4+ and i-Pdiss. Because of its highest tolerance, T. domingensis is the best choice to treat wastewater of high pH and conductivity with heavy metals, a common result from many industrial processes.
Palabras clave: Free-Water Surface Constructed Wetland , Removal Efficiency , Macrophyte , Metallurgic Factory , Effluent Treatment
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/25537
URL: http://www.sciencedirect.com/science/article/pii/S0301479707003635
DOI: http://dx.doi.org/10.1016/j.jenvman.2007.10.004
Colecciones
Articulos(CCT - SANTA FE) [2106]
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos(ILPLA) [571]
Articulos de INST.DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Citación
Maine, Maria Alejandra; Suñe, N.; Hadad, Hernán Ricardo; Sanchez, Gabriela Cristina; Bonetto, Carlos Alberto; Influence of vegetation on the removal of heavy metals and nutrients in a constructed wetland; Elsevier; Journal of Environmental Management; 90; 1; 2-2009; 355-363
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