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Evaluation of amine-functionalized acrylic ion exchange fiber for chromium(VI) removal using flow-through experiments modeling and real wastewater

Authors
Nam, AramChoi, Ung SuYun, Seong-TaekChoi, Jae-WooPark, Jeong-AnnLee, Sang-Hyup
Issue Date
25-10월-2018
Publisher
ELSEVIER SCIENCE INC
Keywords
Amine-functionalized acrylic fiber; Ion exchange fiber; Chromium(VI); Fixed-bed column; Breakthrough curve model analysis; Real industrial plating wastewater
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.66, pp.187 - 195
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume
66
Start Page
187
End Page
195
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/72442
DOI
10.1016/j.jiec.2018.05.029
ISSN
1226-086X
Abstract
Poly(acrylo-amidino diethylenediamine) (PADD), fibrous form of anion exchangers, was synthesized to remove Cr(VI). The experimental results were described well by the Langmuir isotherm model (Q(max) = 4.67 mmol/g) and pseudo second-order model. The Cr(VI) adsorption capacities were increased by decreasing pH because the-NH2 in PADD become more positively charged. During five regeneration cycles, Cr(VI) adsorption capacity retained over 95.96% of the initial capacity. Color of the PADD (yellow) changed to green owing to Cr(VI) reduction to Cr(III) and amine transformed into a oxidized form (imine). The PADD was successfully treated Cr(VI) in two different concentrations of industrial wastewater. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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