Citas bibligráficas
Ubillus, K., (2021). Obtención de carbón activado a partir del epispermo de la semilla de Lúcuma (Pouteria lúcuma) [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/4697
Ubillus, K., Obtención de carbón activado a partir del epispermo de la semilla de Lúcuma (Pouteria lúcuma) []. PE: Universidad Nacional Agraria La Molina; 2021. https://hdl.handle.net/20.500.12996/4697
@misc{renati/1117293,
title = "Obtención de carbón activado a partir del epispermo de la semilla de Lúcuma (Pouteria lúcuma)",
author = "Ubillus Ascarza, Karol Geraldine",
publisher = "Universidad Nacional Agraria La Molina",
year = "2021"
}
This research encourages the use of agro-industrial waste, placing the episperm of the lucuma seed as a suitable material to obtain activated carbon. 18 types of activated carbon were obtained by the chemical method, by combining two concentrations of phosphoric acid (30% and 50%), three pyrolysis temperatures (600°C, 700°C and 800°C), three carbonization times (15 min, 30 min and 45 min) were subsequently ground and fine grain was obtained with sieve No. 100 (ASTM). The analysis focuses on the removal of methylene blue, a colorant widely used in different industries, such as textiles and paper; however, when it is disposed of in wastewater, it generates damage to health and pollution problems. The treatment that presented the highest adsorptive capacity, 97.86%, was activated carbon with 50% H₃PO₄, 600 ° C temperature and 30 minutes of pyrolysis, which in turn represents lower costs, because for its production and use requires less time, energy expenditure and presents a high performance. From the proximal analysis of the raw material, it is deduced that a high quality activated carbon is obtained, in comparison with other precursor materials. Activated carbons were analyzed by yield of production, nitrogen adsorption-desorption, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and adsorption isotherms. The adsorption kinetics allowed a correct analysis to be carried out by obtaining the equilibrium time of each treatment, necessary for the analysis of the adsorption isotherms where all the isotherms were adjusted to the Frumking-Fowler-Guggenheim (FFG) model, which characterizes the isotherm of the S or sigmoidal type and describes a multilayer adsorption process, due to the cooperative lateral attraction between the methylene blue molecules that bind to another previously adsorbed molecule.
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