Made available in DSpace on 2014-12-17T14:08:30Z (GMT). No. of bitstreams: 1 RenataMB.pdf: 1298674 bytes, checksum: 2e9416ef564ec644655637fb323bdd4d (MD5) Previous issue date: 2008-10-06 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The oil production in Brazil has been increasing each year. Consequently, increasing volumes of water produced are generated with large quantities of contaminants, which brings many problems in disposing of these waters. The concern that the concentrations of contaminants in water produced meet existing laws for disposal of effluents, has been extremely important for the development of different techniques for treatment of water produced. The study of clay minerals as adsorbents of organic contaminants has grown considerably so in order to combine the low cost with the efficiency of environmental preservation and health issues. Thus, this study aims to understand the characteristics of vermiculite clay, sodium bentonite, calcium bentonite and diatomite and evaluate their performance as adsorbents for phenol in the water produced. Through adsorption isotherms it was possible to observe the behavior of these adsorptive clay and diatomite for adsorption of phenol, the main phenolic compound found in water produced. Different concentrations of synthetic solutions of phenol were put in touch with these adsorbents under same conditions of agitation and temperature. The adsorbents were composted adsorptive favorable, but the vermiculite and diatomite showed little capacity for absorption, being suggested for absorbs small concentrations of phenol in the balance isothermal / A produ??o de petr?leo no Brasil vem aumentando a cada ano. Em conseq??ncia, volumes crescentes de ?gua de produ??o s?o gerados com grandes quantidades de contaminantes, o que traz v?rios problemas no descarte dessas ?guas. A preocupa??o para que as concentra??es dos contaminantes da ?gua produzida atendam as legisla??es vigentes para descarte de efluentes, tem sido extremamente importante para o desenvolvimento de diferentes t?cnicas de tratamentos da ?gua produzida. O estudo de argilominerais como adsorventes de contaminantes org?nicos tem crescido de forma consider?vel, a fim de se aliar o baixo custo com a efici?ncia da preserva??o ambiental e sa?de publica. Assim, este trabalho tem como objetivo conhecer as caracter?sticas dos argilominerais vermiculita, bentonita s?dica, bentonita c?lcica e da diatomita e avaliar seus desempenhos como adsorventes de fen?is na ?gua produzida. Atrav?s das isotermas de adsor??o p?de-se abservar os comportamentos adsortivos desses argilominerais e da diatomita para adsor??o do fenol, principal composto fen?lico encontrado na ?gua produzida. Diferentes concentra??es de solu??es sint?ticas de fenol foram postas em contato com estes adsorventes sob agita??o e mesmas condi??es de temperatura. Os adsorventes apresentaram comportamento adsortivo favor?vel, por?m a vermiculita e diatomita apresentaram pequena capacidade de adsor??o, sendo sugeridas para adsorver pequenas concentra??es de fenol no equil?brio isot?rmico