Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro “zero-valente” a nanoescala, inmovilizadas sobre aserrín

  • Nedher Sánchez Universidad de Antioquia
  • Mario Vazquez Universidad de Antioquia
  • Roberto Torresi Universidad de São Paulo

Abstract

Se reportan resultados de adsorción del colorante RR239 (colorante reactivo azo) con aserrín pretratado con formaldehído, los experimentos se realizaron a dos valores de pH y considerando el efecto de nanopartículas de hierro de valencia cero. Los datos cinéticos de adsorción se ajustaron bien a un modelo de seudo segundo orden. Los experimentos realizados en el sistema por lotes sugieren que la eficiencia de la decoloración esta fuertemente influenciada por la presencia de partículas de ZVI y bajos pH. La cinética de adsorción por la mezcla de adsorbente (5 g de aserrín y 180 mg de ZVI) a pH 2,0 fue rápida, lográndose más del 90% de la decoloración en 3 minutos.
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Published
2013-02-28
How to Cite
Sánchez N., Vazquez M., & Torresi R. (2013). Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro “zero-valente” a nanoescala, inmovilizadas sobre aserrín. Revista Facultad De Ingeniería Universidad De Antioquia, (55), 18-25. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/14677