Avaliação do desempenho de sorção da casca da Ceiba pentandra em sistemas oleosos

Abstract

Oil and by-product spills cause irreversible damage to any environment, whether aquatic or terrestrial, and also to flora and fauna. Oil is a fossil fuel, flammable, whose density is lower than that of water and which can have short and long term consequences for ecosystems. In relation to this problem, several studies have been developed aiming at the mitigation of damages, seeking more and more the use of remediation methods that are efficient and that have low cost. The sorbent materials are an interesting alternative and are arousing the interest of researchers to fulfill this prerogative. This work focuses on the use of paineira bark, which is little studied for this purpose, but which has the potential to be used as a sorbent material. Tests were carried out to evaluate the sorption capacity of the material, the kinetics (retention rate), the influence of other types of oil and the identification of the main functional groups through Fourier Transform Infrared Spectroscopy, FTIR. The material used showed a very good sorption capacity when compared to other materials, such as rice husk, as the results of the FTIR analysis showed the presence of some functional groups such as, -OH -CH2, C=C, - COC that influence the sorption capacity of the material.