Alternative pore hindrance factors: What one should be used for nanofiltration modelization?

摘要: In nanofiltration it is important for predictive purposes to obtain retentions and/or reflection coefficients from known sizes of the pores and molecules uncharged solutes. This correlation also needed in order model mass transport salts or other charged species. To complete these needs, hindrance factors have be correlated with ratio between pore molecule sizes, λ. There are several correlations proposed literature. Moreover, effect applied pressure was not accounted until recent revisions model. some cases action pore-wall friction has been neglected. Here we make a revision different assumptions on factors, discuss their show conditions that correct should accomplish. It shown consider both because corresponding terms contributions retention reflection. is, nevertheless, less relevant an accurate choice relationship λ, as far as, mainly controlled by partitioning ranges where differ, what leads same predictions. any case theoretically can chosen attending must