First order approximation for coupled film and intraparticle pore diffusion to model sorption/desorption batch experiments

Autor: Binlong Liu, Michael Finkel, Peter Grathwohl
Rok vydání: 2021
Předmět:
Zdroj: Journal of hazardous materials. 429
ISSN: 1873-3336
Popis: A simple first order approximation was derived to model sorption/desorption kinetics of hazardous compounds in batch experiments based on a coupled film and intraparticle diffusion model. The solution is accurate enough to replace infinite series expansions needed in analytical solution for intraparticle diffusion and it accounts for the mass transfer shift from diffusion in the external aqueous boundary layer to the intraparticle pore space. With increasing distribution coefficient (K
Databáze: OpenAIRE