Examinando por Autor "Hernández-Sarabia, Mauricio"
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- PublicaciónSólo datosMathematical modelling and simulation for biogas production from organic waste(International Journal of Engineering Systems Modelling and Simulation, 2018-05-07) Delgadillo-Mirquez, Liliana; Hernández-Sarabia, Mauricio; Machado-Higuera, MaximilianoThis paper introduces the modelling, simulation of anaerobic digestion process for biogas production from organic waste. Insight on the relevant model parameters is obtained by performing a sensitivity analysis, followed by the estimation of the selected candidates using a sequential quadratic programming algorithm. Calibration and validation of the model are based on experimental data obtained from a pilot-scaled plant, showing that the proposed model is able to correctly predict the Methane production dynamics from few key measurements.
- PublicaciónSólo datosThe Potential of the Biodigester as a Useful Tool in Coffee Farms(Applied Sciences (Switzerland), 2021-07-27) Hernández-Sarabia, Mauricio; Sierra-Silva, Juan; Delgadillo-Mirquez, Liliana; Ávila-Navarro, Julián; Carranza, LauraCoffee is a highly productive agricultural product in the department of Tolima. The wet fermentation process of coffee generates about 80% of the waste, which is highly contaminated with organic matter that pollutes water sources, so anaerobic co-digestion techniques are implemented in coffee wastewater using Taiwan type biodigesters. According to the study of three biodigesters fed with coffee waste and animal manure, the aim is to show their potential application in coffee farms. These biodigesters generated a biogas production with CH4 concentrations between 49.1% ± 4.6 and 58.1% ± 2.4 in volume, in addition to the benefit of the biol used as fertilizer in the crops. The biogas produced can be used for cooking and can save around USD 40.17 in natural gas. Therefore, the biodigester is a potential tool to mitigate the harmful effects of coffee cultivation on the surrounding ecosystem and can project coffee production in a sustainable direction.