Diffuse pollutants first flush modeling in urban river basins

Código

I-EBHE0078

Autores

Sabrina Bittencourt Medeiros Drummond, Stephan Fuchs, Eloy Kaviski, MARIA CRISTINA BORBA BRAGA, Sergio Michelotto Braga

Tema

WG 1.03: Urban Water - Urbanization phenomenon & adequate water management

Resumo

The diffuse pollution resulting from soil rinsing during precipitation events is one of the main causes of surface water degradation. In this sense, considering the importance of understanding the transport mechanisms of pollutants of diffuse origin in a body of water, this study proposes the development of a tool for modeling diffuse pollutant discharges during the first flush. There is no definitive model to characterize the behavior of the pollutants involved in the phenomena, however, statistical and computational tools are used to assist in the process of defining and predicting the occurrence. Thus, the objective of this research is to develop a site-specific model to represent the diffuse contribution of pollutants in an urban river basin in Curitiba, Brazil. Based on measurements of physical-chemical parameters, it is intended to develop a computational model based on multilayer convolutional neural networks that allows a better understanding of the dynamics of diffuse pollution and especially of first flush. Aiming at the management of the water resources of the basin adopted as a case study, the use of the model will allow the monitoring of the water quality of the water body and may aid in understanding the behavior of pollutants of diffuse origin associated with precipitation events. In addition, it can be used to quantify the parameters used to characterize and determine the factors contributing to the occurrence of the first flush phenomenon.