Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation
The disposal of phenol-bearing wastewaters impacts the environment and, consequently, the health of living bodies. This work evaluates the viability of using micellar solubilization followed by ionic flocculation in the removal of phenol from aqueous solutions. Initially, an anionic surfactant, ba...
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ri-123456789-449832021-11-23T14:04:52Z Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation Cavalcante, Paula Romyne de Morais Melo, Ricardo Paulo Fonseca Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Barros Neto, Eduardo Lins de Moura, Maria Carlenise Paiva de Alencar Phenol Surfactant Micellar solubilization Ionic flocculation: industrial wastewater treatment The disposal of phenol-bearing wastewaters impacts the environment and, consequently, the health of living bodies. This work evaluates the viability of using micellar solubilization followed by ionic flocculation in the removal of phenol from aqueous solutions. Initially, an anionic surfactant, based on vegetable oil and animal fat, was used to promote the solubilization of phenol in the micelles. Then, calcium was added to the solution to promote the formation of flocs with the ability to capture the phenol-rich micelles. At the end of the experiment, the authors investigated the influence of phenol removal considering surfactant, phenol, and electrolytes concentrations; calcium/surfactant ratio; temperature; pH; equilibrium time; and stirring speed. Phenol desorption from the floc surface was evaluated considering process efficiency and kinetics. The removal efficiency reached values close to 60% using: [Phenol]=100 ppm, [surfactant]=1300 ppm, 0.5 calcium/surfactant ratio, T=35 °C, pH=9.7. A 90% desorption was observed, indicating that desorption of phenol from the floc surface occurs spontaneously. Phenol desorption kinetics was fitted using the Lagergren's pseudo-first order model (R2=0.98) 2021-11-23T14:04:07Z 2021-11-23T14:04:07Z 2018-04-17 article CAVALCANTE, P.R.M.; MELO, R.P.F.; CASTRO DANTAS, T.N.; DANTAS NETO, A.A.; BARROS NETO, E.L.; MOURA, M.C.P.A.. Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 6, p. 2778-2784, 2018. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S221334371830201X. Acesso em: 22 jun. 2021. https://doi.org/10.1016/j.jece.2018.04.025. 2213-3437 https://repositorio.ufrn.br/handle/123456789/44983 10.1016/j.jece.2018.04.025 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Elsevier |
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Phenol Surfactant Micellar solubilization Ionic flocculation: industrial wastewater treatment |
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Phenol Surfactant Micellar solubilization Ionic flocculation: industrial wastewater treatment Cavalcante, Paula Romyne de Morais Melo, Ricardo Paulo Fonseca Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Barros Neto, Eduardo Lins de Moura, Maria Carlenise Paiva de Alencar Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
description |
The disposal of phenol-bearing wastewaters impacts the environment and, consequently, the health of living
bodies. This work evaluates the viability of using micellar solubilization followed by ionic flocculation in the
removal of phenol from aqueous solutions. Initially, an anionic surfactant, based on vegetable oil and animal fat, was used to promote the solubilization of phenol in the micelles. Then, calcium was added to the solution to
promote the formation of flocs with the ability to capture the phenol-rich micelles. At the end of the experiment,
the authors investigated the influence of phenol removal considering surfactant, phenol, and electrolytes concentrations; calcium/surfactant ratio; temperature; pH; equilibrium time; and stirring speed. Phenol desorption from the floc surface was evaluated considering process efficiency and kinetics. The removal efficiency reached values close to 60% using: [Phenol]=100 ppm, [surfactant]=1300 ppm, 0.5 calcium/surfactant ratio, T=35 °C, pH=9.7. A 90% desorption was observed, indicating that desorption of phenol from the floc surface occurs spontaneously. Phenol desorption kinetics was fitted using the Lagergren's pseudo-first order model (R2=0.98) |
format |
article |
author |
Cavalcante, Paula Romyne de Morais Melo, Ricardo Paulo Fonseca Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Barros Neto, Eduardo Lins de Moura, Maria Carlenise Paiva de Alencar |
author_facet |
Cavalcante, Paula Romyne de Morais Melo, Ricardo Paulo Fonseca Dantas, Tereza Neuma de Castro Dantas Neto, Afonso Avelino Barros Neto, Eduardo Lins de Moura, Maria Carlenise Paiva de Alencar |
author_sort |
Cavalcante, Paula Romyne de Morais |
title |
Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
title_short |
Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
title_full |
Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
title_fullStr |
Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
title_full_unstemmed |
Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
title_sort |
removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://repositorio.ufrn.br/handle/123456789/44983 |
work_keys_str_mv |
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