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An analytical solution of the solution-diffusion-electromigration equations reproduces trends in ion rejections during nanofiltration of mixed electrolytes

Autor
Yaroshchuk, A.; Bruening, M.L.
Tipus d'activitat
Article en revista
Revista
Journal of membrane science
Data de publicació
2017-02-01
Volum
523
Pàgina inicial
361
Pàgina final
372
DOI
https://doi.org/10.1016/j.memsci.2016.09.046 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0376738816317380 Obrir en finestra nova
Resum
This paper develops an analytical solution to the equations governing the solution-diffusion-electromigration transport of the ions from two salts that contain a common ion. The analytical expressions, which rely on constant ion permeances, readily enable simple spreadsheet computations of the permeate ion concentrations in nanofiltration (NF). Despite the model simplicity, calculations of ion rejections as a function of transmembrane volume fluxes, feed-solution compositions, and permeance valu...
Paraules clau
Electromigration, Ion permeance, Nanofiltration, Negative rejection, Solution-diffusion

Participants