Estudo do assoreamento e influência da poluição difusa em um reservatório para abastecimento público

Abstract

Sedimentation and diffuse pollution are critical factors affecting water quality and the lifespan of reservoirs used for public water supply. This study aims to evaluate the impact of these processes on the Córrego Mumbuca reservoir, located in Monte Carmelo, Minas Gerais, considering the urban and agricultural areas within the watershed. To this end, computational models based on the Export Coefficient Model (ECM) and the Simple Method by Schueler were applied, allowing the estimation of pollutant loads such as lead, copper, and zinc, as well as nutrients and suspended solids transported to the reservoir. Additionally, different methodologies were used to analyze sediment retention efficiency through the SILTINGZ and HEC-RAS software, to estimate the reservoir's remaining useful life. Based on the data generated, this study seeks to quantify the impacts of different land uses—such as urban, industrial, and agricultural development—in the contributing upstream watershed of the reservoir.