Browsing by Author "Montalvo Cedillo, César Augusto"

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Determinación de las cargas de contaminación en aliviaderos de la red de alcantarillado combinado de la ciudad de Cuenca - Ecuador
(Universidad de Cuenca, 2020-02-28) Montalvo Cedillo, César Augusto; Jerves Cobo, Rubén Fernando
The combined sewer overflow (CSO) is one of the main causes of contamination in the receiving bodies during the rainy period. Ecuador does not have yet legislation related to the CSO processes. The objective of this research is to evaluate the behavior of three combined sewage discharges of the Tomebamba river in the city of Cuenca - Ecuador. For this, the registration of 18 CSO events has been carried out in the CSO El Vado, Multifamiliares and Coliseo. The following water quality parameters have been analyzed: conductivity, turbidity, BOD5, COD, fecal and total coliforms, nitrates, nitrites, ammoniacal nitrogen, ortho phosphate dissolved and total phosphorus. The results show that CSOs contribute to the deterioration of the water quality of the Tomebamba River during the rainy season. There is great variation in the typology of water. The Coliseo discharge does not comply with the national regulations regarding the parameters for effluent discharge in receiving water bodies. The relationship between rain and characteristics of the CSO was also analyzed through the canonical correlation analysis CCA and partial least squares regression PLSR. The result is a prediction model of pollutants based on precipitation parameters. The analysis determined that: (i) the maximum discharge rate of a CSO depends mainly on the maximum rainfall intensity (ii) the maximum rainfall intensity and average rainfall intensity, have an influence on the recorded average turbidity values (iii) The mean value of COD is related to the duration of the dry season prior to the precipitation event
Estudio de los procesos de transporte de sedimento en suspensión para el proyecto de generación hidroeléctrica hidro-sanbartolo, mediante un modelo físico de lecho móvil
(2012) Cabrera Zamora, Juan Pablo; Montalvo Cedillo, César Augusto; Pacheco Tobar, Esteban Alonso; Carrillo Serrano, Verónica Margarita
Estudio en modelo físico de escala reducida para los procesos de barrido hidráulico del proyecto de generación hidroeléctrica Minas - San Francisco
(2013) Vázquez García, Sandra Elizabeth; Solórzano Valencia, Mónica Patricia; Pacheco Tobar, Esteban Alonso; Montalvo Cedillo, César Augusto
The purpose of this thesis is studying of hydraulic Flushing into the Hydroelectric Project Minas – San Francisco, through the experimental study on a reduced scale physical model (1/60). In order to know the efficiency of the bottom outlets were conducted several trials, which were aimed at sediment flushing processes in the reservoir, for which different considerations were raised in terms of the height of sediment in the reservoir, the used flushing flow and the influence of the flashboard. In all flushing tests were simulated three stages of operation of the gates of the bottom outlets. We performed a qualitative analysis of tests, and also comparisons of the volumes of sediment flushed from land surveys made after the end of each test. The performance of sediment flushing processes has not been suitable, since it was not possible to do an efficient flushing process on the right bank around the zone of the intake, so it is necessary to implement other alternatives to improve the flushing process.