Fig. 4
From: On the application of the Spiegler-Kedem model to forward osmosis
Solute free feed: Comparison of the predicted influence of draw concentration, cd, upon solvent flux, Jv, for the solution-diffusion model, the solution-diffusion model with B = 0 (labelled ‘ideal’) and the Spiegler-Kedem (S-K-W) model with A = 10 μm s− 1 MPa− 1. a Standard conditions except cf =0. b Standard conditions except cf =0 and kbl= 75 μm s− 1