Evaluación del subproducto “bio-char” de gasificación de pino como potencial adsorbente de azul de metileno
Date
2022-12
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AJEA- Actas de Jornadas y Eventos Académicos de UTN
Abstract
En este trabajo, se obtuvieron residuos carbonosos de procesos de gasificación de biomasa, comúnmente conocidos como bio-char, a fin de ser evaluados como potenciales adsorbentes de azul de metileno, un contaminante muy común presente en los cursos de agua proveniente de industrias textiles. A tales efectos, se llevó adelante un trabajo teórico-experimental donde se evaluó la capacidad de adsorción empleando tres tipos de bio-char. La parte experimental consistió en llevar adelante estudios de equilibrio y cinética del contaminante. Para la parte teórica, se empleó el modelo de Langmuir que describe el proceso de equilibrio de adsorción, mientras que dos modelos de pseudo primer orden y segundo orden fueron empleados para evaluar los parámetros de cinética. Los resultados muestran que los tres bio-char son potenciales adsorbentes de azul de metileno, aunque el bio-char 3 presentó un leve incremento en su capacidad adsorbente, mostrando un qmax de 14,61 mg/g.
In this work carbon residues commonly known as bio-char were obtained from biomass gasification processes, in order to be evaluated as potential adsorbents of methylene blue, a very common contaminant of watercourses from textile industries. For this purpose, a theoretical-experimental work was carried out, where the adsorption capacity was evaluated using three types of bio-char. The experimental part consisted of carrying out equilibrium and kinetic studies of the contaminant. For the theoretical part, the Langmuir model that describes the adsorption equilibrium process was used, while two pseudo first order and second order models were used to evaluate the kinetic parameters. The results show that the three bio-chars are potential methylene blue adsorbents, although biochar 3 showed a slight increase in its capacity as adsorbent, showing a qmax of 14.61 mg/g.
In this work carbon residues commonly known as bio-char were obtained from biomass gasification processes, in order to be evaluated as potential adsorbents of methylene blue, a very common contaminant of watercourses from textile industries. For this purpose, a theoretical-experimental work was carried out, where the adsorption capacity was evaluated using three types of bio-char. The experimental part consisted of carrying out equilibrium and kinetic studies of the contaminant. For the theoretical part, the Langmuir model that describes the adsorption equilibrium process was used, while two pseudo first order and second order models were used to evaluate the kinetic parameters. The results show that the three bio-chars are potential methylene blue adsorbents, although biochar 3 showed a slight increase in its capacity as adsorbent, showing a qmax of 14.61 mg/g.
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Keywords
Gasificación, Bio-char, Azul de metileno, Modelo de Langmuir, Gasification, Bio-char, Methylene blue, Langmuir model
Citation
Jornadas de Ciencia y Tecnología 2022
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