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Previous issue date: 2009-09-03 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / This study evaluates the inclusion of quaternary ammonium salt, bromide hexadecyl trimethyl ammonium (HDTMA-Br) on sodium bentonite to evaluate their performance on the adsorption of phenol present in produced water. It was
observed an increase in d001 samples modified with HDTMA-Br by diffraction of X-rays, showing the intercalation of quaternary ammonium cations in the interlamellar layers of clay. Through the adsorption isotherms could be abserver
adsorption behavior of sodium bentonite and organophilic bentonite produced in three different concentrations of HDTMA-Br for adsorption of phenol, which is the main phenolic compound found in the product water. Different
concentrations of synthetic solutions of phenol were placed in contact with these adsorbents under the same conditions of agitation and temperature. The adsorbent showed adsorptive favorable, especially the clay modified with the highest concentration of HDTMA-Br, 150% CEC of clay, BEN30-14, with higher amounts of phenol adsorbed per gram of adsorbent (mg.g-1) / Este trabalho objetiva avaliar a inser??o do sal de am?nio quatern?rio, brometo de hexadecil trimetil am?nio (HDTMA-Br) em bentonita s?dica para avaliar seu desempenho na adsor??o de fenol presente em ?gua produzida. P?de-se observar o aumento na d001 das amostras modificadas com HDTMABr por meio de difra??o de raios-X, o que evidencia a intercala??o dos c?tions quatern?rios de am?nio nas camadas interlamelares da argila. Atrav?s das isotermas de adsor??o p?de-se abservar os comportamentos adsortivos da
bentonita s?dica e da bentonita organof?lica produzida em tr?s concentra??es de HDTMA-Br para adsor??o do fenol, o qual ? o principal composto fen?lico encontrado na ?gua produzida. Diferentes concentra??es de solu??es sint?ticas de fenol foram colocadas em contato com estes adsorventes sob
mesmas condi??es de agita??o e de temperatura. Os adsorventes apresentaram comportamento adsortivo favor?vel, destacando-se a argila modificada com a maior concentra??o de HDTMA-Br, 150% da CTC da argila,
BEN30-14, com maiores quantidades de fenol adsorvida por grama de adsorvente (mg.g-1)
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/17610 |
| Date | 03 September 2009 |
| Creators | Oliveira, Maryelzy Felipe David de |
| Contributors | CPF:06117988320, http://lattes.cnpq.br/3318871716111536, Melo, Marcus Ant?nio de Freitas, CPF:04514998320, http://lattes.cnpq.br/5840621182000517, Pimentel, Patr?cia Mendon?a, CPF:77858239449, http://lattes.cnpq.br/9303372770390061, Oliveira, Jo?o Bosco Lucena de, CPF:19127537404, http://lattes.cnpq.br/1360004695124740, Barros, Joana Maria de Farias, CPF:85239658404, http://lattes.cnpq.br/1016070459137884, Melo, Dulce Maria de Ara?jo |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Qu?mica, UFRN, BR, F?sico-Qu?mica; Qu?mica |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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