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Advisor(s)
Abstract(s)
In this study, cork granules, which are by-products of the cork processing industry, were used as biosorbents for the removal of vegetable and animal oils from water. Simple oil-in-water emulsions were created by ultrasonic emulsification and batch adsorption tests were performed by contacting cork with these emulsions for a defined period of time. A mass transfer model was able to predict adequately the kinetic data, using a Linear Driving Force approximation for intraparticle diffusion and equilibrium described by the Langmuir-Freundlich equation. Maximum sorption capacities for vegetable and animal oil, as calculated by the Langmuir-Freundlich model, were 5 ± 4 and 2.3 ± 0.9 g g-1, respectively. Therefore, expanded cork granules proved to be an efficient, low-cost sorbent for both vegetable and animal oils
Description
Keywords
Sorption Cork by-products Oily wastewaters Water reuse
Citation
Pereira, J.P.; Ferreira, C.I.; Pintor, A.M.; Correia, P.; Silva, S.; Vilar, V.; Botelho, C.; Martins, Ramiro; Orfão, J.; Boaventura, Rui (2012). Valorisation of cork by-products for the treatment of vegetal and animal oil containing wastewater. In International Conference on Recycling and Reuse. Istambul, Turquia