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

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 the OMP transport 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-exchange membranes, and between their thicknesses. The dynamic diffusion-adsorption model was used to calculate the adsorption and diffusion coefficients o

SUBMITTER: Roman M 

PROVIDER: S-EPMC7892919 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature