Evaluación ambiental de la producción de microperlas de quitosano modificadas con TiO2 y magnetita usando el algoritmo de reducción de residuos (WAR)

Resumen

En la actualidad, los bioadsorbentes modificados con nanopartículas han tomado relevancia como posible opción en el tratamiento de aguas contaminadas debido a su bajo costo, abundancia natural y alta eficiencia. Se han diseñado procesos a escala industrial para producir microperlas modificadas de quitosano; sin embargo, estos deben ser analizados bajo criterios de sostenibilidad antes de una posible implementación. En este trabajo se evaluó el desempeño ambiental de un proceso a escala industrial usando el algoritmo WAR, que sirva como sustento para posibles proyectos económicos. Se simuló el proceso usando el software Aspen Plus ® para obtener información del proceso como flujos másicos y energéticos. La evaluación se realizó utilizando el software WARGUI. Se cuantificó el Impacto potencial ambiental (PEI) de cuatro casos de estudio mediante cuatro enfoques de impactos. Este análisis arrojó valores negativos en los PEI totales generados y se encontraron valores de tasa hasta 5740 PEI/h para la tasa de PEI de salida. En las categorías toxicológicas no hubo valores apreciables (entre -212 y -1,21 PEI/h) para ningún caso debido a la baja presencia de sustancias tóxicas en el proceso. En las categorías atmosféricas, los PEI se deben mayormente al uso de combustibles. El gas natural tuvo el mejor desempeño ambiental reportando bajos valores para las tasas de PEI de generación y salida (-308, 4970 PEI/h, respectivamente). Debido a lo anterior, es posible afirmar que el proceso tiene un desempeño ambiental aceptable.

Palabras clave: Algoritmo WAR, Nanopartículas, Quitosano, Análisis Ambiental, Producción

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Publicado
2021-05-27
Sección
Artículos