Flood Mitigation in Urban Areas through Deep Aquifer Recharge: The Case of the Metropolitan Area of Guadalajara
Metadatos
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MDPI
Materia
Surface waterproofing Deep injections wells Artificial aquifer recharge Flood reduction Sustainable urban drainage system Rainwater utilization
Fecha
2022-03-08Referencia bibliográfica
Vanegas-Espinosa, L.I... [et al.]. Flood Mitigation in Urban Areas through Deep Aquifer Recharge: The Case of the Metropolitan Area of Guadalajara. Int. J. Environ. Res. Public Health 2022, 19, 3160. [https://doi.org/10.3390/ijerph19063160]
Patrocinador
Consejo Nacional de Ciencia y Tecnologia (CONACyT); Instituto Tecnologico de Estudios Superiores de OccidenteResumen
The Metropolitan Area of Guadalajara (MAG) experiences water shortage and overexploitation
of aquifers. In addition, it suffers from seasonal flooding that is channeled towards inadequate
sanitary drainage, creating a strong negative environmental impact. These problems are rooted in the
waterproofing of the urban surface. Many cities around the world have used deep injection wells
to recover aquifers and remove surface waters. Certain geohydrological conditions are required
for the implementation of these deep injection wells, deeper than 30 m, such as significant surface
runoff, acceptable water quality for infiltration, considerable depth in the phreatic levels, and good
subsoil permeability. All of these conditions exist in the MAG or could be achieved without significant
investment. An assessment is presented exploring the viability for a solution based on this technology,
as a strategy to recover aquifers and reduce flooding. The first step was to identify, through map
algebra, a micro-basin suitable for this technology. Then, mean runoff volumes were obtained and a
stratigraphic profile was carried out based on 19 standard penetration tests (SPT).With these data,
a numerical simulation of deep injection wells of different dimensions was performed, providing
recommendations for a solution based on these calculations. The results show that both problems can
be solved with this relatively simple and cheap technology supporting public health.