Removal of phenol from aqueous medium using micellar solubilization followed by ionic flocculation

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dc.contributor.authorCavalcante, Paula Romyne de Morais
dc.contributor.authorMelo, Ricardo Paulo Fonseca
dc.contributor.authorDantas, Tereza Neuma de Castro
dc.contributor.authorDantas Neto, Afonso Avelino
dc.contributor.authorBarros Neto, Eduardo Lins de
dc.contributor.authorMoura, Maria Carlenise Paiva de Alencar
dc.date.accessioned2021-11-23T14:04:07Z
dc.date.available2021-11-23T14:04:07Z
dc.date.issued2018-04-17
dc.description.resumoThe 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)pt_BR
dc.identifier.citationCAVALCANTE, 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.pt_BR
dc.identifier.doi10.1016/j.jece.2018.04.025
dc.identifier.issn2213-3437
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/44983
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectPhenolpt_BR
dc.subjectSurfactantpt_BR
dc.subjectMicellar solubilizationpt_BR
dc.subjectIonic flocculation: industrial wastewater treatmentpt_BR
dc.titleRemoval of phenol from aqueous medium using micellar solubilization followed by ionic flocculationpt_BR
dc.typearticlept_BR

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