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CeO2 nanoparticles and water treatment processes


An increased production of CeO2 nanoparticles will inevitably lead to their higher emissions into the natural water bodies. As these emissions pose a significant treat in terms of environmental impacts and possible human health risks, it is necessary to carefully evaluate processes responsible for their mobility, retention, and bioavailability. Adsorption at interfaces is considered as one of the most important processes controlling the fate and transport of nanomaterials in the environment and industrial filtration units. However, mechanisms and physical or chemical parameters influencing this process are still poorly understood, especially in the case of porous materials used in water purification and potabilization.

In this study, a combination of theoretical kinetics and thermodynamic models and a variety of complementary experimental techniques are used to get an insight into the mechanistic understanding of CeO2 NPs behaviour in the presence of quartz sand used in the drinking water treatment plant of Geneva (Switzerland) and to evaluate the effectiveness of traditional filtering and nanoparticle removal efficiency.

HUL, Gabriela Jolanta et al. Towards a better understanding of CeO2 manufactured nanoparticles adsorption onto sand grains used in drinking water treatment plants. In: Colloids and surfaces. A, Physicochemical and engineering aspects., 2022, vol. 646, p. 129000.

28 Apr 2022

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