Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/90042
Title: Effect of low-impact development practices on the treatment of urban runof
Efecto de las tecnologías de bajo impacto en el tratamiento del agua de escorrentía urbana
Keywords: nonpoint pollution;bioretention;water quality;xeric climates;contaminación difusa;biorretención;calidad del agua;climas xéricos
Publisher: Centro Universitario de Arte, Arquitectura y Diseño
Description: The impact of a bioretention cell on the urban runoff (UR) quality was evaluated. The cell was constructed with the following stratification of materials (from the base): 20% coarse gravel, 40% gravel, hydrogel, 40% clinoptilolite, and succulent plants as cover. It was fed with real UR for 24 hours at a constant speed to simulate 3.9 mm of precipitation. Samples were taken at the inlet and outlet of the cell, which were analyzed in terms of COD, N-NH4+, N-NO2-, N-NO3-, PO43- (total and dissolved), Escherichia coli density, and various metals (Al, Fe, Cu, Mn, Pb, Zn, Cr, Cd and Ni) according to standard methods. To assess the effect of the cell on water quality, we proposed an index that we calculated for the AEU before and after receiving the treatment. The system removed several of the pollutants evaluated: COD (28.5%), N-NH4+ (84.3%), N-NO3- (49.4%), total PO43- (94.8%), and dissolved PO43- (86.2%). The metals were removed with efficiencies between 90 and 99%, with the exception of Ni (58.7%), while E. coli was completely removed. The index calculated for the water treated in the cell was considerably lower than the index calculated for the inlet AEU, which shows the bio retention effect on water quality. 
Se evaluó el impacto de una celda de biorretención en el tratamiento de agua de escorrentía urbana (AEU). La celda se construyó con la siguiente estratificación de materiales (desde la base): 20% de grava, 40% de gravilla, hidrogel, 40% clinoptilolita, y plantas suculentas como cobertura. Se alimentó con aeu real durante 24 horas a velocidad constante para simular 3.9 mm de precipitación. Se tomaron muestras a la entrada y a la salida de la celda, para analizar dqo, N-NH4+, N-NO2-, N-NO3-, PO43- (totales y disueltos), cuenta de Escherichia coli y diversos metales (Al, Fe, Cu, Mn, Pb, Zn, Cr, Cd y Ni). Para evaluar el efecto de la celda en la calidad del agua, se propuso un índice que se calculó para el aeu antes y después de recibir el tratamiento. El sistema removió varios de los contaminantes evaluados: dqo (28.5%), N-NH4+ (84.3%), N-NO3- (49.4%), PO43- totales (94.8%), y PO43- disueltos (86.2%). Los metales se eliminaron con eficiencias comprendidas entre 90% y 99%, a excepción del Ni (58.7%), mientras que E. coli se removió al 100%. El índice de calidad calculado para el agua tratada fue considerablemente menor al índice del aeu de entrada, lo que muestra que la celda mejoró la calidad del agua.
Other Identifiers: https://revistavivienda.cuaad.udg.mx/index.php/rv/article/view/151
10.32870/rvcs.v0i8.151
Appears in Collections:Revista Vivienda y Comunidades Sustentables

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