Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation

The textile industry is one of the main generators of industrial effluent due to the large volumes of water containing a wide variety of pollutants, including dyes. Thus, the present study aimed to remove the Disperse Blue 56 dye present in synthetic textile effluent using ionic flocculation through...

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Autores principales:	R. P. F. Melo, S. K. S. Carmo, E. L. B. Barros, A. G. Câmara, S. K. S. Nunes, E. L. Barros Neto
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption mechanism evaluation environmentally friendly surfactant ionic flocculation kinetics and equilibrium adsorption textile effluent treatment Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/c165db6c32224e4fa2b857a49f8f6344
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spelling	oai:doaj.org-article:c165db6c32224e4fa2b857a49f8f63442021-11-06T11:07:38ZRemoval of Disperse Blue 56 from synthetic textile effluent using ionic flocculation0273-12231996-973210.2166/wst.2021.173https://doaj.org/article/c165db6c32224e4fa2b857a49f8f63442021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/11/2714https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The textile industry is one of the main generators of industrial effluent due to the large volumes of water containing a wide variety of pollutants, including dyes. Thus, the present study aimed to remove the Disperse Blue 56 dye present in synthetic textile effluent using ionic flocculation through surfactant flocs produced from animal/vegetable fat, assessing the system at different surfactant concentrations and temperatures. The process kinetics, adsorption mechanism and equilibrium were evaluated. The results show that the kinetics was better described by the Elovich model when compared to pseudo-first order and pseudo-second order models, indicating that chemical adsorption occurs during the process. The study of the adsorption mechanism obtained lower outer layer diffusivities than their intra-particle counterparts, demonstrating that the dye transport to the surfactant floc is controlled through the outer layer. The Langmuir isotherm was suitable for equilibrium data and the separation factor calculated showed that the isotherm is classified as favorable. Dye removal efficiency reached 87% after 360 minutes of contact between the effluent and the surfactant flocs, indicating that ionic flocculation is an efficient alternative in the treatment of textile effluent containing disperse dye. HIGHLIGHTS Ionic flocculation was studied for removal of a disperse dye from water.; Surfactants obtained from animal/vegetable fat are used for wastewater treatment.; Kinetic, diffusion mechanism and equilibrium were evaluated.; Temperature does not have considerable influence on the process.; The proposed methodology allows a removal efficiency of 87%.;R. P. F. MeloS. K. S. CarmoE. L. B. BarrosA. G. CâmaraS. K. S. NunesE. L. Barros NetoIWA Publishingarticleadsorption mechanism evaluationenvironmentally friendly surfactantionic flocculationkinetics and equilibrium adsorptiontextile effluent treatmentEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 11, Pp 2714-2723 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption mechanism evaluation environmentally friendly surfactant ionic flocculation kinetics and equilibrium adsorption textile effluent treatment Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption mechanism evaluation environmentally friendly surfactant ionic flocculation kinetics and equilibrium adsorption textile effluent treatment Environmental technology. Sanitary engineering TD1-1066 R. P. F. Melo S. K. S. Carmo E. L. B. Barros A. G. Câmara S. K. S. Nunes E. L. Barros Neto Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
description	The textile industry is one of the main generators of industrial effluent due to the large volumes of water containing a wide variety of pollutants, including dyes. Thus, the present study aimed to remove the Disperse Blue 56 dye present in synthetic textile effluent using ionic flocculation through surfactant flocs produced from animal/vegetable fat, assessing the system at different surfactant concentrations and temperatures. The process kinetics, adsorption mechanism and equilibrium were evaluated. The results show that the kinetics was better described by the Elovich model when compared to pseudo-first order and pseudo-second order models, indicating that chemical adsorption occurs during the process. The study of the adsorption mechanism obtained lower outer layer diffusivities than their intra-particle counterparts, demonstrating that the dye transport to the surfactant floc is controlled through the outer layer. The Langmuir isotherm was suitable for equilibrium data and the separation factor calculated showed that the isotherm is classified as favorable. Dye removal efficiency reached 87% after 360 minutes of contact between the effluent and the surfactant flocs, indicating that ionic flocculation is an efficient alternative in the treatment of textile effluent containing disperse dye. HIGHLIGHTS Ionic flocculation was studied for removal of a disperse dye from water.; Surfactants obtained from animal/vegetable fat are used for wastewater treatment.; Kinetic, diffusion mechanism and equilibrium were evaluated.; Temperature does not have considerable influence on the process.; The proposed methodology allows a removal efficiency of 87%.;
format	article
author	R. P. F. Melo S. K. S. Carmo E. L. B. Barros A. G. Câmara S. K. S. Nunes E. L. Barros Neto
author_facet	R. P. F. Melo S. K. S. Carmo E. L. B. Barros A. G. Câmara S. K. S. Nunes E. L. Barros Neto
author_sort	R. P. F. Melo
title	Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
title_short	Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
title_full	Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
title_fullStr	Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
title_full_unstemmed	Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation
title_sort	removal of disperse blue 56 from synthetic textile effluent using ionic flocculation
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/c165db6c32224e4fa2b857a49f8f6344
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_version_	1718443758513553408

Removal of Disperse Blue 56 from synthetic textile effluent using ionic flocculation

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