Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction

Textile wastewater represents a serious environmental issue due to the presence of toxic dyes. The cloudpoint extraction, which involves the application of nonionic surfactants at temperatures above the cloudpoint, was applied in this research to remove Reactive Blue 19 dye from a synthetic wastewat...

ver descrição completa

Na minha lista:

Detalhes bibliográficos
Principais autores:	Melo, Ricardo Paulo Fonseca, Barros Neto, Eduardo Lins de, Dantas, Tereza Neuma de Castro, Dantas Neto, Afonso Avelino, Moura, M. C. P. A., Oliveira, Humberto Neves Maia de
Formato:	article
Idioma:	English
Publicado em:	ELSEVIER
Assuntos:	Reactive Blue 19 Nonionic surfactant Cloud point extraction Coacervate phase Langmuir isotherm
Endereço do item:	https://repositorio.ufrn.br/handle/123456789/45175
Tags:	Adicionar Tag Sem tags, seja o primeiro a adicionar uma tag!

id	ri-123456789-45175
record_format	dspace
spelling	ri-123456789-451752021-12-06T14:34:24Z Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction Melo, Ricardo Paulo Fonseca Barros Neto, Eduardo Lins de Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Moura, M. C. P. A. Oliveira, Humberto Neves Maia de Reactive Blue 19 Nonionic surfactant Cloud point extraction Coacervate phase Langmuir isotherm Textile wastewater represents a serious environmental issue due to the presence of toxic dyes. The cloudpoint extraction, which involves the application of nonionic surfactants at temperatures above the cloudpoint, was applied in this research to remove Reactive Blue 19 dye from a synthetic wastewater. Nonyl-phenol with 9.5 ethoxylation degree was used as nonionic surfactant. Dye removal was evaluated consid-ering the influence of surfactant concentration, temperature, and initial dye concentration. Equilibriumdata followed the Langmuir isotherm model. Negative Gibbs energy, enthalpy, and entropy showed thatthe process was spontaneous and exothermal. Dye removal reached 91% when using 7.5 wt% surfactant,at 65.0°C. Cloud point extraction can be used as an efficient alternative for treating textile wastewatercontaining Reactive Blue 19 Textile wastewater represents a serious environmental issue due to the presence of toxic dyes. The cloudpoint extraction, which involves the application of nonionic surfactants at temperatures above the cloudpoint, was applied in this research to remove Reactive Blue 19 dye from a synthetic wastewater. Nonyl-phenol with 9.5 ethoxylation degree was used as nonionic surfactant. Dye removal was evaluated consid-ering the influence of surfactant concentration, temperature, and initial dye concentration. Equilibriumdata followed the Langmuir isotherm model. Negative Gibbs energy, enthalpy, and entropy showed thatthe process was spontaneous and exothermal. Dye removal reached 91% when using 7.5 wt% surfactant,at 65.0°C. Cloud point extraction can be used as an efficient alternative for treating textile wastewatercontaining Reactive Blue 19 2021-12-06T14:32:31Z 2021-12-06T14:32:31Z 2014-12-10 article MELO, Ricardo Paulo Fonseca; BARROS NETO, Eduardo Lins de; MOURA, M.C.P.A.; DANTAS, Tereza Neuma de Castro; DANTAS NETO, Afonso Avelino; Oliveira, Humberto Neves Maia de. Removal of reactive blue 19 using nonionic surfactant in cloud point extraction. Separation and Purification Technology (Print), v. 138, p. 71-76, 2014. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1383586614006121?via%3Dihub#!. Acesso em: 04 dez. 2021. DOI: https://doi.org/10.1016/j.seppur.2014.10.009 1383-5866 https://repositorio.ufrn.br/handle/123456789/45175 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf ELSEVIER
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Reactive Blue 19 Nonionic surfactant Cloud point extraction Coacervate phase Langmuir isotherm
spellingShingle	Reactive Blue 19 Nonionic surfactant Cloud point extraction Coacervate phase Langmuir isotherm Melo, Ricardo Paulo Fonseca Barros Neto, Eduardo Lins de Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Moura, M. C. P. A. Oliveira, Humberto Neves Maia de Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
description	Textile wastewater represents a serious environmental issue due to the presence of toxic dyes. The cloudpoint extraction, which involves the application of nonionic surfactants at temperatures above the cloudpoint, was applied in this research to remove Reactive Blue 19 dye from a synthetic wastewater. Nonyl-phenol with 9.5 ethoxylation degree was used as nonionic surfactant. Dye removal was evaluated consid-ering the influence of surfactant concentration, temperature, and initial dye concentration. Equilibriumdata followed the Langmuir isotherm model. Negative Gibbs energy, enthalpy, and entropy showed thatthe process was spontaneous and exothermal. Dye removal reached 91% when using 7.5 wt% surfactant,at 65.0°C. Cloud point extraction can be used as an efficient alternative for treating textile wastewatercontaining Reactive Blue 19
format	article
author	Melo, Ricardo Paulo Fonseca Barros Neto, Eduardo Lins de Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Moura, M. C. P. A. Oliveira, Humberto Neves Maia de
author_facet	Melo, Ricardo Paulo Fonseca Barros Neto, Eduardo Lins de Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Moura, M. C. P. A. Oliveira, Humberto Neves Maia de
author_sort	Melo, Ricardo Paulo Fonseca
title	Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
title_short	Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
title_full	Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
title_fullStr	Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
title_full_unstemmed	Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction
title_sort	removal of reactive blue 19 using nonionic surfactant in cloud point extraction
publisher	ELSEVIER
publishDate	2021
url	https://repositorio.ufrn.br/handle/123456789/45175
work_keys_str_mv	AT meloricardopaulofonseca removalofreactiveblue19usingnonionicsurfactantincloudpointextraction AT barrosnetoeduardolinsde removalofreactiveblue19usingnonionicsurfactantincloudpointextraction AT dantasterezaneumadecastro removalofreactiveblue19usingnonionicsurfactantincloudpointextraction AT dantasnetoafonsoavelino removalofreactiveblue19usingnonionicsurfactantincloudpointextraction AT mouramcpa removalofreactiveblue19usingnonionicsurfactantincloudpointextraction AT oliveirahumbertonevesmaiade removalofreactiveblue19usingnonionicsurfactantincloudpointextraction
_version_	1773958502474055680

Removal of Reactive Blue 19 using nonionic surfactant in cloud point extraction

Registros relacionados