Diffusion of hydrophilic organic micropollutants in granular activated carbon with different pore sizes.

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ID: 2785
2019
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Abstract
Hydrophilic organic micropollutants are commonly detected in source water used for drinking water production. Effective technologies to remove these micropollutants from water include adsorption onto granular activated carbon in fixed-bed filters. The rate-determining step in adsorption using activated carbon is usually the adsorbate diffusion inside the porous adsorbent. The presence of mesopores can facilitate diffusion, resulting in higher adsorption rates. We used two different types of granular activated carbon, with and without mesopores, to study the adsorption rate of hydrophilic micropollutants. Furthermore, equilibrium studies were performed to determine the affinity of the selected micropollutants for the activated carbons. A pore diffusion model was applied to the kinetic data to obtain pore diffusion coefficients. We observed that the adsorption rate is influenced by the molecular size of the micropollutant as well as the granular activated carbon pore size.
Reference Key
piai2019diffusionwater Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Piai, Laura;Dykstra, Jouke E;Adishakti, Mahesa G;Blokland, Marco;Langenhoff, Alette A M;van der Wal, Albert;
Journal Water research
Year 2019
DOI
S0043-1354(19)30517-2
URL
Keywords Keywords not found

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