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The behavior of mixtures of inorganic nanoparticles and natural organic matter (NOM) during nanofiltration (NF) was investigated in a lab-scale crossflow filtration system to identify how interactions between these foulants influenced deposition and membrane performance in terms of NOM and salt selectivity. NOM selectivity was reduced substantially when the colloid concentration was sufficient to...
The role of colloid deposition on the performance of a salt-rejecting NF membrane was evaluated by modeling salt transport using a two-layer transport model, which quantified the relative contributions of advection and diffusion in the cake and the membrane layers, and the effects of flux on the membrane sieving coefficient. The model was able to accurately describe how the measured permeate concentration,...
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