Efficacy of Different Waste and By-Products from Forest and Food Industries in the Removal/Retention of the Antibiotic Cefuroxime
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Título: | Efficacy of Different Waste and By-Products from Forest and Food Industries in the Removal/Retention of the Antibiotic Cefuroxime |
Autor/a: | Cela Dablanca, Raquel Nebot García, Carolina Graciela Rodríguez López, Lucía Fernández Calviño, David Arias Estévez, Manuel Núñez Delgado, Avelino Fernández Sanjurjo, María J. Álvarez Rodríguez, Esperanza |
Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola Universidade de Santiago de Compostela. Departamento de Química Analítica, Nutrición e Bromatoloxía |
Palabras chave: | Antibiotics | Eucalyptus leaves | Mussel shell | Pine bark | Pine needles | Retention/release | Wood ash | |
Data: | 2021 |
Editor: | MDPI |
Cita bibliográfica: | Processes 2021, 9(7), 1151; https://doi.org/10.3390/pr9071151 |
Resumo: | Environmental pollution due to antibiotics is a serious problem. In this work, the adsorption and desorption of the antibiotic cefuroxime (CFX) were studied in four by-products/residues from the forestry and food industries. For this, batch-type experiments were carried out, adding increasing concentrations of CFX (from 0 to 50 µmol L−1) to 0.5 g of adsorbent. The materials with a pH higher than 9 (mussel shell and wood ash) were those that presented the highest adsorption percentages, from 71.2% (23.1 µmol kg−1) to 98.6% (928.0 µmol kg−1). For the rest of the adsorbents, the adsorption was also around 100% when the lowest concentrations of CFX were added, but the percentage dropped sharply when the highest dose of the antibiotic was incorporated. Adsorption data fitted well to the Langmuir and Freundlich models, with R2 greater than 0.9. Regarding desorption, the materials that presented the lowest values when the highest concentration of CFX was added were wood ash (0%) and mussel shell (2.1%), while pine bark and eucalyptus leaves presented the highest desorption (26.6% and 28.6%, respectively). Therefore, wood ash and mussel shell could be considered adsorbents with a high potential to be used in problems of environmental contamination by CFX |
Versión do editor: | https://doi.org/10.3390/pr9071151 |
URI: | http://hdl.handle.net/10347/26722 |
DOI: | 10.3390/pr9071151 |
E-ISSN: | 2227-9717 |
Dereitos: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/) Atribución 4.0 Internacional |
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