Estudo de Hymenaea stigonocarpa e Tamarindus indica na obtenção de materiais adsorventes para remoção de resíduos de efluentes industriais

Abstract

The recent global concern surrounding wastewater pollution makes us reflect and think of alternatives that can be employed to minimize this problem. Some raw materials and natural waste can be harnessed and used for adsorption of impurities negative impact on industrial effluents. The adsorbent materials have the ability to retain impurities and help reduce some undesirable residues of industrial effluents. An example of a widely used adsorbent material is activated charcoal, which is subjected to high temperatures for complete carbonization and subsequent activation with it physical or chemical. The adsorption process, using activated charcoal, is a means of treatment which can be very bright when it comes to protection of effluents, since it is a rapid process of removing unwanted residues and can have a low cost and hand of work. In the present work, fruits tamarind (Tamarindus indica Linn) were collected and jatoba-do-Cerrado (Hymenaea stigonocarpa Mart.) For subsequent use of the bark in the production process of adsorbent materials. The shells were used jatobá in nature, as tamarind peels have undergone a temperature of 400 ° C to complete the carbonization burning coal production and subsequently peels were treated both chemically and activated with the activating agent ferric chloride (FeCl3) and placed in contact with a solution containing the textile dye Cibacron Blue FN-R, then we obtained the spectrum of solutions to evaluate the efficiency of the adsorbent material. The objective of this study was to evaluate the efficiency of the materials obtained from two species of the Cerrado, as adsorbent materials, the removal of dyes from textile industry. The results showed that there was a better adsorption on samples that were treated at the temperature of 60 ° C. And the larger particle size for tests with jatoba bark. However it is concluded that the adsorbent material generated in this study are efficient at removing dye Cibacron Blue FN-R textile industry effluents, suggesting that it may also be effective in other effluents.