BIOTRANSFORMATION OF THE ORGANIC FRACTION OF MUNICIPAL SOLID WASTES TO BIOETHANOL
BIOTRANSFORMACIÓN DE LA FRACCIÓN ORGÁNICA DE LOS RESIDUOS SÓLIDOS URBANOS A BIOETANOL
Autor(es): G. Chávez-Escalante, F. Méndez González, B.H. Espinosa-Ramírez y R. Estrada-Martínez
Fuente: Mexican Journal of Technology and Engineering, Vol. 1, No. 1, pp. 9-14.
DOI: https://doi.org/10.61767/mjte.001.1.0914
Abstract
Poor management of municipal solids wastes is leading to pollution of the oceans, causing flooding, transmitting diseases, and affecting flora and fauna worldwide. Of municipal solids wastes, 52% represent organic fraction, which, due to their carbohydrate content are likely to be used for the generation of bioethanol by liquid or solid fermentation. For this, various process configurations have been developed, which include studies of strain selection, substrate pre-treatment, and type of bioreactor. With this, bioethanol production yields from 30 to 100 g/L were obtained from different organic wastes. However, it is necessary to optimize operating conditions to ensure a profitable process at the industrial level.
Keywords: Bioethanol, solid-state fermentation, submerged fermentation, organic wastes, biotransformation.
Resumen
La mala gestión de los residuos sólidos urbanos está produciendo la contaminación de los océanos, causando inundaciones, transmitiendo enfermedades y afectando a la flora y fauna a nivel mundial. De los residuos sólidos urbanos, el 52% representan los residuos orgánicos; los cuales, por su contenido de carbohidratos sus susceptibles de utilizarse para la generación de bioetanol por fermentación líquida o sólida. Para ello, diversas configuraciones de proceso han sido desarrolladas; las cuales, incluyen estudios de selección de cepa, pretratamiento del sustrato y tipo de biorreactor. Con ello, se han obtenido rendimientos de producción de 30 a 100 g/L de bioetanol a partir de diferentes residuos orgánicos. Sin embargo, es necesario optimizar condiciones de operación para garantizar un proceso rentable a nivel industrial.
Palabras clave: Bioetanol, fermentación en estado sólido, fermentación líquida, residuos orgánicos, biotrasformación.
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