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Avances en Ciencias e Ingeniería
Article . 2016
Data sources: DOAJ
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CONICET Digital
Article . 2016
License: CC BY NC SA
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USO DE TALCO COMO DECOLORANTE DE EFLUENTES LÍQUIDOS

Authors: Zaupa, Jessica; Grafia, Ana Luisa; Castillo, Luciana Andrea; Barbosa, Silvia Elena;

USO DE TALCO COMO DECOLORANTE DE EFLUENTES LÍQUIDOS

Abstract

El objetivo de este trabajo es analizar el empleo de talco como adsorbente de colorantes para el tratamiento de efluentes líquidos contaminados con pigmentos. Se estudió la adsorción de cristal violeta, como colorante modelo, empleando dos muestras de talco de distinta procedencia (Argentina y Australia) y diferentes características geomorfológicas. Se prepararon suspensiones con la misma relación mineral/solución colorante.La cantidad adsorbida de colorante se determinó empleando los sobrenadantes por Espectroscopía UV y directamente sobre los minerales, utilizando Análisis Termogravimétrico y Espectroscopía Infrarroja. La isoterma de Langmuir ajustó con mayor precisión los datos experimentales obtenidos para el talco australiano, en tanto que el modelo de Freundlich predijo mejor el comportamiento de adsorción para la muestra argentina. Los resultados demostraron que, a pesar del contenido de impurezas, el talco argentino actúa como buen adsorbente del colorante, ofreciendo una alternativa económica frente a los materiales comúnmente empleados para tal fin

The aim of this paper is to analyze the use of talc as dye adsorbent for the treatment of wastewater contaminated with pigments. Crystal violet adsorption was studied as a colorant model, using two samples of talc from different sources (Argentina and Australia) and different geomorphological features. Suspensions having the same mineral/dye solution ratio were prepared. The adsorbed quantity of dye was determined from supernatant by UV Spectroscopy and from mineral, using Thermogravimetrical Analysis and Infrared Spectroscopy. Langmuir isotherm fitted with higher precision the experimental data obtained for the Australian talc, meanwhile Freundlich model predicted better the adsorption behavior for the Argentinean sample. The results showed that, despite the content of impurities, the Argentinean talc acts as a good adsorbent dye, offering an economic alternative to materials commonly used for this purpose.

Fil: Castillo, Luciana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina

Fil: Barbosa, Silvia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina

Fil: Grafia, Ana Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina

Fil: Zaupa, Jessica. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina

Country
Argentina
Keywords

ADSORCIÓN, Q1-390, Science (General), https://purl.org/becyt/ford/2.7, CRISTAL VIOLETA, REMOCIÓN DE COLORANTES, https://purl.org/becyt/ford/2, TA1-2040, Engineering (General). Civil engineering (General), TALCO

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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