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Title: Removal of direct Yellow 27 dye using animal fat and vegetable oil-based surfactant
Authors: Melo, Ricardo Paulo Fonseca
Barros Neto, Eduardo Lins de
Moura, Maria Carlenise Paiva de Alencar
Dantas, Tereza Neuma de Castro
Dantas Neto, Afonso Avelino
Oliveira, Humberto Neves Maia de
Keywords: Direct Yellow;Sodium soap;Removal efficiency;Textile wastewater treatment
Issue Date: Sep-2015
Publisher: Elsevier
Citation: MELO, R.P.F.; BARROS NETO, E.L.; MOURA, M.C.P.A.; DANTAS, T.N. C.; DANTAS NETO, A.A.; OLIVEIRA, H.N.M.. Removal of direct Yellow 27 dye using animal fat and vegetable oil-based surfactant. Journal of Water Process Engineering, v. 7, p. 196-202, 2015. Disponível em: Acesso em: 02 jul. 2021.
Portuguese Abstract: The textile industry uses large amounts of water in its processes. Such water ends up contaminated by a number of substances, including dyes, creating an environmental challenge. The present study aims at removing dye by applying the precipitation process using a sodium soap (anionic surfactant), derived fromanimalfat andvegetable oil,promotingdyedecontaminationusing biodegradablematerials. Sodium soap, in the presence of calcium ions, forms another insoluble surfactant. This new surfactant, under stir ring, aggregates and forms hydrophobic flocs that are capable of adsorbing organic materials dissolved in aqueous solutions, including dyes. Dye removal was assessed considering the influence of initial sur factant concentration, temperature, pH, presence of electrolyte, equilibrium time, and stirring rate. Dye removal efficiency reached 97.6%
ISSN: 2214-7144
Appears in Collections:CT - DEQ - Artigos publicados em periódicos

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