Performance of coffee husk biochar in sulfadiazine retention and remediation of soil water contamination: a batch and column study
de Holanda, Marco Aurelio Calixto Ribeiro | Virgínia Salgueiro Gondim, Manuella | de Lemos Silva, Glauce Maria | Miguel Alves, Edevaldo | Gé Proenza, Yaicel | Hammecker, Claude | Celso Dantas Antonino, Antonio | de Albuquerque Soares, Willames | de Souza Lima, José Romualdo | Metri Correa, Marcus | Federal University of Pernambuco [Recife] | Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH) ; Institut de Recherche pour le Développement (IRD)-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Universidade Federal de Pernambuco [Recife] (UFPE) | Universidade Federal Rural de Pernambuco (UFRPE) | This work was supported by the National Institute of Science and Technology-Observatorio Nacional da Dinamica da & Aacute;gua e do Carbono no Bioma Caatinga-ONDACBC [CNPq Process: 465764/2014-2].
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Показать больше [+] Меньше [-]Английский. This research aimed to analyse the effect of biochar as a filtering layer in the transfer mechanisms of Sulfadiazine (SDZ), an antibiotic found in urban surface waters of the Recife Metropolitan Region (RMR). Laboratory tests of kinetics and sorption isotherms of SDZ with biochar were conducted in batch conditions. Additionally dynamic adsorption analyse was performed on sand column experiments and breakthrough curves were established. The results suggest that the biochar significantly improves the SDZ sorption rates. The experimental data were best fitted through a pseudo-second-order model, and a markable dependency was observed for the loading capacity of the biochar with the experimental condition of the sorption test, as the loading value without batch (41%) was below the obtained in the batch trials (53%). The simulations also showed that the Convection Dispersion Equation (CDE) and the two site sorption models best fit the observed data, indicating no chemical equilibrium.
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