In situ functionalization of a cellulosic-based activated carbon with magnetic iron oxides for the removal of carbamazepine from wastewater
authors Pereira, D; Rocha, LS; Gil, MV; Otero, M; Silva, NJO; Esteves, VI; Calisto, V
nationality International
journal ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
author keywords Magnetic recuperation; Waste-based magnetic carbon; Paper mill sludge; In situ coprecipitation; Wastewater treatment; Emerging contaminants; Micropollutants; Water quality
keywords TREATMENT PLANTS; PILOT-SCALE; ADSORPTION; PHARMACEUTICALS; MICROPOLLUTANTS; ADSORBENTS; OZONATION; KINETICS; RISK; CONTAMINANTS
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 m(2) 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 (q(m)) 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.
publisher SPRINGER HEIDELBERG
issn 0944-1344
isbn 1614-7499
year published 2021
volume 28
issue 15
beginning page 18314
ending page 18327
digital object identifier (doi) 10.1007/s11356-020-09314-x
web of science category 14
subject category Environmental Sciences
unique article identifier WOS:000537537400003
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journal impact factor 3.056
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