Journal
DESALINATION AND WATER TREATMENT
Volume 148, Issue -, Pages 162-169Publisher
DESALINATION PUBL
DOI: 10.5004/dwt.2019.23521
Keywords
Metronidazole; Activated carbon fiber; Adsorption kinetics; Adsorption isotherms; Thermodynamics
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Funding
- Natural Science Foundation and Technology Department of Jilin province, China [20150101093C]
- Technology Department Key research of Jilin province, China [20140204038SF]
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Metronidazole (MNZ), as a widely used nitroimidazolehas various effects on the human body. In this study, metronidazole removal by activated carbon fibers (ACFs) was investigated. The influences of adsorption temperature, adsorption time and the pH of MNZ solution have been studied and the best conditions were determined. ACFs with high BET surface area of 175.40 m(2)/g and 0.35 cm(3)/g total pore volume has been obtained from these precursors. The analyses of kinetic data showed that the adsorption of MNZ on ACFs follows closely the pseudo-second order kinetic model. Analysis data of MNZ were analyzed by Langmuir, Freundlich isotherms and the best correlation was achieved by the Langmuir isotherms. Results of thermodynamic studies showed endothermic, spontaneous nature and chemisorption of MNZ adsorption on ACFs.
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