Evaluación de cenizas de fondo de carbón para la fabricación de ladrillos de arcilla: estudio preliminar

  • Janneth Torres-Agredo Universidad Nacional de Colombia http://orcid.org/0000-0002-4094-8387
  • Luisa Fernanda Mosquera-Idrobo Universidad Nacional de Colombia
  • Patricia Paz-Villegas C.I. Lago Verde S.A.S
  • Miguel Fernando Díaz-Huertas C.I. Lago Verde S.A.S

Resumen

El crecimiento industrial, económico y social ha generado grandes cantidades de residuos sólidos que causan impactos negativos al medioambiente y a la salud humana. Se presenta un estudio preliminar de cenizas de fondo de carbón (CBA), residuo de la combustión del carbón, para ser usado como materia prima en la fabricación de ladrillos de arcilla. Se aplicaron técnicas de granulometría láser, fluorescencia de rayos X y difracción de rayos X; además, se determinó la densidad real y aparente y el contenido de materia orgánica. Se aplicaron técnicas ambientales a través del ensayo de TCLP (toxicity characteristic leaching procedure) y ecotoxicidad por Daphnia pulex. Se encontró que el residuo es un material amorfo, compuesto por óxidos de silicio, hierro, aluminio y otros; además, el residuo cumple con la normatividad medioambiental. De acuerdo con los resultados, se concluye que este residuo tiene un gran potencial para ser usado en la fabricación de ladrillos de arcilla.

Palabras clave: aprovechamiento, carbón, cenizas de fondo, gestión de residuos, residuo sólido, ladrillos de arcilla, granulometría láser, fluorescencia de rayos X, difracción de rayos X

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Publicado
2021-08-11