Browsing by Author "Sánchez Moreno, Hugo Javier"

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    Estudio de los procesos de degradación y transformación del material vegetal en los embalses hidroeléctricos de Agoyán y Pisayambo que generan metano (CH4) y dióxido de carbono (CO2)
    (2021) Sánchez Moreno, Hugo Javier; Pérez Aldás, Lander Vinicio
    In the present project, the study of the degradation and transformation processes of plant material in the hydroelectric reservoirs of Agoyán and Pisayambo that generate methane (CH4) and carbon dioxide (CO2) was evaluated. Field sampling and laboratory analysis were carried out to establish the geographical, geophysical and biochemical aspects of the reservoirs, with the aim of establishing the gas flows of interest (methane and carbon dioxide) and determining the correct methodology by applying mathematical models. Three methods were used for the estimation of methane and carbon dioxide gases in the mentioned reservoirs, the first is by on-site determination using a personal PID gas monitor (RKI-GX-6000) with the help of a floating static chamber, the second The method included the application of an IPCC mathematical model using the organic matter obtained from the sediment of the reservoirs as a variable, and the third technique is through a simple modeling by direct estimation using the biochemical oxygen demand (BOD) as a variable. In addition, a significant regression equation for methane emissions was found in order to contribute in the long term to the Agoyán and Pisayambo Hydroelectric Plants. The results found in this study indicate that the methane emissions generated in the Agoyán and Pisayambo reservoirs report a maximum value of 3,0 × 10 tons / year respectively, while carbon dioxide emissions into the atmosphere report values of 136 and 239 tons / year, indicating that in the Pisayambo reservoir there is more pollution than in the Agoyán reservoir due to emissions of methane and carbon dioxide. Finally, a statistical analysis was performed using Levene's test to assess normality and equality of variances, and the results were confirmed using Tukey's test.