화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.66, 187-195, October, 2018
DOI10.1016/j.jiec.2018.05.029  Export Citation
Evaluation of amine-functionalized acrylic ion exchange fiber for chromium(VI) removal using flow-through experiments modeling and real wastewater
Aram Nam1, 2, Ung Su Choi3, Seong-Taek Yun4, 2, Jae-Woo Choi1, Jeong-Ann Park1, †, and Sang-Hyup Lee1, 2, †
  • 1Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
  • 2KU-KIST Green School, Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
  • 3Center for Urban Energy System Research, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
  • 4Department of Earth and Environmental sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
E-mail:,
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 (Qmax = 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.
Keywords:Amine-functionalized acrylic fiber;Ion exchange fiber;Chromium(VI);Fixed-bed column;Breakthrough curve model analysis;Real industrial plating wastewater
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