Título
Artificial Treatment Wetlands: An Alternative to Remove Arsenic Form Water
Autor
MARIA TERESA ALARCON HERRERA
MARIO ALBERTO OLMOS MARQUEZ
MARIA CECILIA VALLES ARAGON
IGNACIO MARTIN
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
Arsenic can be removed from water through rhizofirtration using phytostabirizing plants. The
performanc e ol Eteocharis macrostachya in artificial or constructed wetlands for arsenic
removal was determined at the prototype level. The concentrations of arsenic in the inlet
water were maintained constant at five levels (0.05, 0.1, 0.2, 0.3 and 0.4 mg/L), and a flow
rate of 130 L/d). Water samples were taken at the inlet and outlet of the wetlands during the
entire testing period. Plant growth was also monitored to determine tolerance at the tested
arsenic concentrations. The prototypes with plants were able to retain an average of 85 to
90% of the arsenic present in feed water containing concentrations in the range of 0.01 to
0.4mg/L. Plant reproduction values were above 116%, and no difference in growth size with
respect to the control was observed. Results show that Eteacharis macrostachya tolerates
high arsenic concentrations in flooded environments and behaves as a rhizofilterer retaining
arsenic from water in artificial wetlands.
Fecha de publicación
2012
Tipo de publicación
Artículo
Versión de la publicación
Versión enviada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Repositorio Orígen
Fuente de Objetos Científicos Open Access
Descargas
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