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Simultaneous scavenging of persistent pharmaceuticals with different charges by activated carbon fiber from aqueous environments.

Authors
  • Zhao, Yufeng1
  • Cho, Chul-Woong2
  • Wang, Dongfang3
  • Choi, Jong-Won4
  • Lin, Shuo5
  • Yun, Yeoung-Sang6
  • 1 College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, Hubei Province, China; Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Division of Semiconductor and Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea. Electronic address: [email protected] , (China)
  • 2 Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Division of Semiconductor and Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea; Department of Bioenergy Science and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea. Electronic address: [email protected] , (North Korea)
  • 3 Hubei Academy of Environmental Sciences, Wuhan, 430072, China. Electronic address: [email protected] , (China)
  • 4 Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Division of Semiconductor and Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea. Electronic address: [email protected] , (North Korea)
  • 5 Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Division of Semiconductor and Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea. Electronic address: [email protected] , (North Korea)
  • 6 Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Division of Semiconductor and Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic of Korea. Electronic address: [email protected] , (North Korea)
Type
Published Article
Journal
Chemosphere
Publication Date
May 01, 2020
Volume
247
Pages
125909–125909
Identifiers
DOI: 10.1016/j.chemosphere.2020.125909
PMID: 31972492
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The adsorptive removal possibility of persistent pharmaceuticals with different charges by activated carbon fiber (ACF) was examined. The pharmaceuticals tested included carbamazepine (CBZ), propranolol (PRO), and diclofenac (DCF), in neutral, cationic, and anionic forms, respectively, which were frequently detected in sewage. The adsorption characteristics of ACF were identified according to the kinetics, isotherm, pH, and ionic strength experiments. The results revealed that ACF can effectively remove these pharmaceuticals, and the adsorption capacities of CBZ, PRO, and DCF by ACF were 1.27 ± 0.06, 1.07 ± 0.08, and 0.95 ± 0.08 mmol g-1, respectively. Moreover, the adsorption of ACF for CBZ was independent of pH and ionic strength, whereas that of anionic diclofenac decreased at alkaline pHs and high concentrations of NaCl. Using a syringe system packed with ACF mat, the scavenging ability of intermittently generated secondary sewage was evaluated. As a result, the residual concentration of PRO and CBZ could not be even detected after consecutive 10 runs in secondary sewage mixture solution. This indicates ACF has the powerful potential for removing pharmaceutical micropollutants in the actual aqueous solutions. FTIR and XPS analyses showed that hydrophobic and π-π interactions and hydrogen bonding contributed to the adsorption process. Copyright © 2020 Elsevier Ltd. All rights reserved.

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