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TitleEffect of ph on the removal of fluoxetine from aqueous solutions by granular activated carbon
Author(s)Silva, Bruna
Tavares, Teresa
Solution pH
Issue date25-Sep-2017
CitationSilva, Bruna; Tavares, Teresa, Effect of ph on the removal of fluoxetine from aqueous solutions by granular activated carbon. WASTES: Solutions, Treatments and Opportunities Book of Proceedings of the 4th International Conference. Porto, Portugal, Sep 25-26, 69-71, 2017.
Abstract(s)The widespread use of pharmaceuticals in human and veterinary medicine has led to the continuous release of these micropollutants and their metabolites into environmental matrices. The aim of this work is to assess the sorption capacity of activated carbon and to evaluate the effect of the solution pH on the removal of fluoxetine from dilute solutions (5 mg/L). Kinetic assays were performed in batch experiments at different pH values, from 2 to 9. The pH of zero point of charge, pHzpc, obtained for activated carbon was 8.3. The results revealed that the solution pH strongly influences the electrostatic interactions between the net surface charge of the adsorbent and the electric charge of fluoxetine molecules. The adsorption of fluoxetine onto activated carbon was therefore dependent on the solution pH, being the maximum uptake attained at pH 9 (q = 48.5 mg/g).
TypeConference paper
Publisher version
AccessOpen access
Appears in Collections:CEB - Artigos em Livros de Atas / Papers in Proceedings

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