Examinando por Materia "Organic"

Mostrando 1 - 2 de 2
  • Publicación
    Acceso abierto
    Production of biogas from organic solid residues, by the use of biodigester in bench scale
    (2018) Carreño, J.; Da Silva Borges, D.R.; De Souza, Clauidinei; Martínez Amaríz, Alejandro David
    The urban solid waste that is deposited in the open dumps generates great contamination during its decomposition stage since it undergoes different changes due to the action of the microorganisms that the produce CO2, CH4 and other residual gases that affect the environment and health human. The present work aims to evaluate the efficiency of biogas production from organic solid wastes generated in the University Restaurant of the Technology Center of the Federal University of Rio de Janeiro through anaerobic digestion in biodigesters at scale bench. During this study an anaerobic digestion test was carried out in a bench scale biodigester for a period of 48 days, prepared with organic solid waste, anaerobic sludge and waste water; being analyzed and controlled different chemical parameters, besides the values of temperature and ph. The test prepared for this project consisted of 6% of total solids consisting of solid wastes, anaerobic sludge and wastewater, resulting in an efficiency of removal of total volatile solids of 55% and the production of approximately 38% CH4, 43% CO2 and 10% H2S.
  • Publicación
    Acceso abierto
    Use of organic waste biomass for the design of an electric station
    (2018) Martínez Amaríz, Alejandro David; De Souza, Clauidinei; Garrido, G.
    The Colombian country side is moving forward, among some obstacles is the little use of self-propelled assets in farm activities, the current ones, due to their technical characteristics, don’t adapt to Colombian’s geography, therefore, it’s important to develop technologies that aim to eco-efficiency, taking advantage of Colombia's great biomass potential. In this way, it’s proposed as an initial part of a macro-project that is developed by the Servicio Nacional de Aprendizaje (SENA) that seeks the incorporation of electric utility vehicles and their charging stations in the sowing and harvesting of cocoa. In this work, a physical-chemical characterization of two types of organic substrates (pigs and chickens manure) is done to obtain the methane energy potential for the design of an electrical station. As a relevant result, the sample obtained from the 1 to 3 proportion of pig manure highlight since it achieves a better production of methane in a retention time of approximately 30 days, achieving a daily load of the batteries in an estimated time of 6 hours, it contributes to the management of slow charge cycles according to its control algorithm and to a complete equalization of the 1.980 cells that make up the 6 modules of batteries.