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Non-steady diffusion and adsorption of organic micropollutants in ion-exchange membranes : effect of the membrane thickness

(2021) ISCIENCE. 24(2).
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Abstract
There is no efficient wastewater treatment solution for removing organic micropollutants ( OMPs), which, therefore, are continuously introduced to the Earth's surface waters. This creates a severe risk to aquatic ecosystems and human health. In emerging water treatment processes based on ion-exchange membranes (IEM), transport of OMPs through membranes remains unknown. We performed a comprehensive investigation of theOMPtransport through a single IEM under non- steady-state conditions. For the first time, positron annihilation lifetime spectroscopy was used to study differences in the free volume element radius between anion- and cation-exchangemembranes, and between their thicknesses. The dynamic diffusion-adsorption model was used to calculate the adsorption and diffusion coefficients ofOMPs. Remarkably, diffusion coefficients increased with the membrane thickness, where its surface resistance was more evident in thinner membranes. Presented results will contribute to the improved design of next-generation IEMs with higher selectivity toward multiple types of organic compounds.
Keywords
PERSONAL CARE PRODUCTS, WATER TREATMENT-PLANT, WASTE-WATER, EMERGING CONTAMINANTS, POSITRON-ANNIHILATION, SYSTEM PLEPS, FREE-VOLUME, ELECTRODIALYSIS, TRANSPORT, ENERGY

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MLA
Roman, Malgorzata, et al. “Non-Steady Diffusion and Adsorption of Organic Micropollutants in Ion-Exchange Membranes : Effect of the Membrane Thickness.” ISCIENCE, vol. 24, no. 2, 2021, doi:10.1016/j.isci.2021.102095.
APA
Roman, M., Roman, P., Verbeke, R., Gutierrez, L., Vanoppen, M., Dickmann, M., … Verliefde, A. (2021). Non-steady diffusion and adsorption of organic micropollutants in ion-exchange membranes : effect of the membrane thickness. ISCIENCE, 24(2). https://doi.org/10.1016/j.isci.2021.102095
Chicago author-date
Roman, Malgorzata, Pawel Roman, Rhea Verbeke, Leonardo Gutierrez, Marjolein Vanoppen, Marcel Dickmann, Werner Egger, et al. 2021. “Non-Steady Diffusion and Adsorption of Organic Micropollutants in Ion-Exchange Membranes : Effect of the Membrane Thickness.” ISCIENCE 24 (2). https://doi.org/10.1016/j.isci.2021.102095.
Chicago author-date (all authors)
Roman, Malgorzata, Pawel Roman, Rhea Verbeke, Leonardo Gutierrez, Marjolein Vanoppen, Marcel Dickmann, Werner Egger, Ivo Vankelecom, Jan Post, Emile Cornelissen, Karel Keesman, and Arne Verliefde. 2021. “Non-Steady Diffusion and Adsorption of Organic Micropollutants in Ion-Exchange Membranes : Effect of the Membrane Thickness.” ISCIENCE 24 (2). doi:10.1016/j.isci.2021.102095.
Vancouver
1.
Roman M, Roman P, Verbeke R, Gutierrez L, Vanoppen M, Dickmann M, et al. Non-steady diffusion and adsorption of organic micropollutants in ion-exchange membranes : effect of the membrane thickness. ISCIENCE. 2021;24(2).
IEEE
[1]
M. Roman et al., “Non-steady diffusion and adsorption of organic micropollutants in ion-exchange membranes : effect of the membrane thickness,” ISCIENCE, vol. 24, no. 2, 2021.
@article{8696527,
  abstract     = {{There is no efficient wastewater treatment solution for removing organic micropollutants ( OMPs), which, therefore, are continuously introduced to the Earth's surface waters. This creates a severe risk to aquatic ecosystems and human health. In emerging water treatment processes based on ion-exchange membranes (IEM), transport of OMPs through membranes remains unknown. We performed a comprehensive investigation of theOMPtransport through a single IEM under non- steady-state conditions. For the first time, positron annihilation lifetime spectroscopy was used to study differences in the free volume element radius between anion- and cation-exchangemembranes, and between their thicknesses. The dynamic diffusion-adsorption model was used to calculate the adsorption and diffusion coefficients ofOMPs. Remarkably, diffusion coefficients increased with the membrane thickness, where its surface resistance was more evident in thinner membranes. Presented results will contribute to the improved design of next-generation IEMs with higher selectivity toward multiple types of organic compounds.}},
  articleno    = {{102095}},
  author       = {{Roman, Malgorzata and Roman, Pawel and Verbeke, Rhea and Gutierrez, Leonardo and Vanoppen, Marjolein and Dickmann, Marcel and Egger, Werner and Vankelecom, Ivo and Post, Jan and Cornelissen, Emile and Keesman, Karel and Verliefde, Arne}},
  issn         = {{2589-0042}},
  journal      = {{ISCIENCE}},
  keywords     = {{PERSONAL CARE PRODUCTS,WATER TREATMENT-PLANT,WASTE-WATER,EMERGING CONTAMINANTS,POSITRON-ANNIHILATION,SYSTEM PLEPS,FREE-VOLUME,ELECTRODIALYSIS,TRANSPORT,ENERGY}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{32}},
  title        = {{Non-steady diffusion and adsorption of organic micropollutants in ion-exchange membranes : effect of the membrane thickness}},
  url          = {{http://dx.doi.org/10.1016/j.isci.2021.102095}},
  volume       = {{24}},
  year         = {{2021}},
}

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