In situ functionalization of a cellulosic-based activated carbon with magnetic iron oxides for the removal of carbamazep
- PDF / 2,794,093 Bytes
- 14 Pages / 595.276 x 790.866 pts Page_size
- 46 Downloads / 191 Views
IMPACTS IN ENVIRONMENTAL TRENDS, HEALTH AND WELL BEING: A GLOBAL POLLUTION PROBLEM
In situ functionalization of a cellulosic-based activated carbon with magnetic iron oxides for the removal of carbamazepine from wastewater Diogo Pereira 1 & Luciana S. Rocha 1 & María V. Gil 2 & Marta Otero 3 & Nuno J. O. Silva 4 & Valdemar I. Esteves 1 & Vânia Calisto 1 Received: 18 February 2020 / Accepted: 14 May 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The main goal of this work was to produce an easily recoverable waste-based magnetic activated carbon (MAC) for an efficient removal of the antiepileptic pharmaceutical carbamazepine (CBZ) from wastewater. For this purpose, the synthesis procedure was optimized and a material (MAC4) providing immediate recuperation from solution, remarkable adsorptive performance and relevant properties (specific surface area of 551 m2 g−1 and saturation magnetization of 39.84 emu g−1) was selected for further CBZ kinetic and equilibrium adsorption studies. MAC4 presented fast CBZ adsorption rates and short equilibrium times (< 30– 45 min) in both ultrapure water and wastewater. Equilibrium studies showed that MAC4 attained maximum adsorption capacities (qm) of 68 ± 4 mg g−1 in ultrapure water and 60 ± 3 mg g−1 in wastewater, suggesting no significant interference of the aqueous matrix in the adsorption process. Overall, this work provides evidence of potential application of a waste-based MAC in the tertiary treatment of wastewaters. Keywords Magnetic recuperation . Waste-based magnetic carbon . Paper mill sludge . In situ coprecipitation . Wastewater treatment . Emerging contaminants . Micropollutants . Water quality
Introduction Modern human and veterinary health care strongly rely on pharmaceuticals consumption. The European Union (EU) Responsible editor: Tito Roberto Cadaval Jr Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11356-020-09314-x) contains supplementary material, which is available to authorized users. * Vânia Calisto [email protected] 1
Department of Chemistry & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
2
Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain
3
Department of Environment and Planning & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
4
Department of Physics & CICECO, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
alone accounts for 25% of the global pharmaceutical market and the forecasts point to a continuous growth of consumption (Deloitte Sustainability 2018). These substances are considered the source of tremendous benefits to public health but, in the meantime, are becoming increasingly ubiquitous in several environmental matrices, being detected in the ng to low μg per litre range (Jelic et al. 2012; Pereira et al. 2017; Desbiolles et al. 2018; McCance et al. 2018). Continuous exposure to pharmaceuticals may pose a significant risk to hum
Data Loading...
