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dc.contributor.author Maine, Maria Alejandra
dc.contributor.author Hadad, Hernán Ricardo
dc.contributor.author Sánchez, Gabriela Cristina
dc.contributor.author Mufarrege, María de Las Mercedes
dc.contributor.author Di Luca, Gisela Alfonsina
dc.contributor.author Caffaratti, Sandra Ester
dc.contributor.author Pedro, María del Carmen
dc.date.available 2017-05-05T14:33:40Z
dc.date.issued 2013-10
dc.identifier.citation Maine, Maria Alejandra; Hadad, Hernán Ricardo; Sánchez, Gabriela Cristina; Mufarrege, María de Las Mercedes; Di Luca, Gisela Alfonsina; et al.; Sustainability of a constructed wetland faced with a depredation event; Elsevier; Journal of Environmental Management; 128; 10-2013; 1-6
dc.identifier.issn 0301-4797
dc.identifier.uri http://hdl.handle.net/11336/16005
dc.description.abstract A free water surface constructed wetland (CW) designed for effluent treatment was dominated by the emergent macrophyte Typha domingensis reaching a cover of roughly 80% for 5 years. Highly efficient metal and nutrient removal was reported during this period. In June 2009, a population of approximately 30 capybaras (Hydrochoerus hydrochaeris) caused the complete depredation of the aerial parts of macrophytes. However, plant roots and rhizomes were not damaged. After depredation stopped, T. domingensis showed a luxuriant growth, reaching a cover of 60% in 30 days. The objective of this work was to evaluate the sustainability of the CW subjected to an extreme event. Removal efficiency of the system was compared during normal operation, during the depredation event and over the subsequent recovery period. The CW efficiently retained contaminants during all the periods studied. However, the best efficiencies were registered during the normal operation period. There were no significant differences between the performances of the CW over the last two periods, except for BOD. The mean removal percentages during normal operation/depredation event/recovery period, were: 84.9/73.2/74.7% Cr; 66.7/ 48.0/51.2% Ni; 97.2/91.0/89.4% Fe; 50.0/46.8/49.5% Zn; 81.0/84.0/80.4% NO3 - ; 98.4/93.4/84.1% NO2 - ; 73.9/ 28.2/53.2% BOD and 75.4/40.9/44.6% COD. SRP and TP presented low removal efficiencies. Despite the anoxic conditions, contaminants were not released from sediment, accumulating in fractions that proved to be stable faced with changes in the operating conditions of the CW. T. domingensis showed an excellent growth response, consequently the period without aerial parts lasted a few months and the CW could recover its normal operation. Plants continued retaining contaminants in their roots and the sediment increased its retention capacity, balancing the operating capacity of the system. This was probably due to the fact that the CW had reached its maturity, with a complete root-rhizome development. These results demonstrated that faced with an incidental problem, this mature CW was capable of maintaining its efficiency and recovering its vegetation, demonstrating the robustness of these treatment systems.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject Sediment
dc.subject Contaminants
dc.subject Effluent
dc.subject Macrophytes
dc.subject Capybaras
dc.subject Constructed Wetlands
dc.subject.classification Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Sustainability of a constructed wetland faced with a depredation event
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-04-17T19:25:44Z
dc.journal.volume 128
dc.journal.pagination 1-6
dc.journal.pais Países Bajos
dc.journal.ciudad Ámsterdam
dc.description.fil Fil: Maine, Maria Alejandra. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil Fil: Hadad, Hernán Ricardo. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil Fil: Sánchez, Gabriela Cristina. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina
dc.description.fil Fil: Mufarrege, María de Las Mercedes. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil Fil: Di Luca, Gisela Alfonsina. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil Fil: Caffaratti, Sandra Ester. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina
dc.description.fil Fil: Pedro, María del Carmen. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica. Laboratorio de Quimica Analitica; Argentina
dc.journal.title Journal of Environmental Management
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jenvman.2013.04.054
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0301479713003046


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)