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Entramado
versión impresa ISSN 1900-3803versión On-line ISSN 2539-0279
Resumen
MUNAR-SAMBONI, Andrés Mauricio; MENDEZ-PEDROZA, Nelly María y VALBUENA-CALDERON, Oscar Eduardo. Hydrodynamic and water quality modeling in an urban estuarine ecosystem with tidal incidence and sewage discharges. Entramado [online]. 2021, vol.17, n.1, pp.302-320. Epub 05-Mayo-2021. ISSN 1900-3803. https://doi.org/10.18041/1900-3803/entramado.1.7285.
The effect of the tidal regime and sewage discharge on estuarine areas can cause pollution problems, due to the retention and transport of pollutants. The use of mathematical models has become an essential tool for the water resources management in these environments. In this paper, the incidence of tidal regime and sewage discharge on the water quality of an urban estuarine ecosystem was modeled using the HEC-RAS model. The model was calibrated / validated using the medium long-term streamflow (QMLT) and water quality parameters measured in field, such as: BOD, DO, N-O2 N-O3. The results showed that the water level, streamflow and the water quality parameters measured in field were well represented from the model. The simulations showed that the water quality for all the sections downstream of the Wastewater Treatment Plant are eutrophied. Additionally the tidal regime causes retention and transport of pollutants in areas of low slope. The proposed approach is a valuable tool for assessing the water quality in urban estuarine environments and surrounding areas with incidence of tidal regime.
Palabras clave : Estuarine Eutrophication; HEC-RAS; Tidal Hydrodynamic; Estuarine Areas.