Rough or wiggly? Membrane topology and morphology for fouling control

@article{Ling2019RoughOW,
  title={Rough or wiggly? Membrane topology and morphology for fouling control},
  author={Bowen Ling and Ilenia Battiato},
  journal={Journal of Fluid Mechanics},
  year={2019},
  volume={862},
  pages={753 - 780}
}
During filtration in reverse osmosis membranes (ROM), the system performance is dramatically affected by membrane fouling which causes a significant decrease in permeate flux as well as an increase in the energy input required to operate the system. In this work, we develop a model, able to dynamically capture foulant evolution, that couples the transient Navier–Stokes and the advection–diffusion equations, with an adsorption–desorption equation for the foulant accumulation. The model is… 
Dynamic Modeling of Fouling in Reverse Osmosis Membranes
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A customized solver was developed under the open source finite volume simulator OpenFOAM to solve transient Navier–Stokes, advection–diffusion, and adsorption–desorption equations for foulant accumulation and two permeate flux reduction models at the membrane boundary were implemented.
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It is suggested that the PFR should be higher than 1 to produce patterned membranes with maximal threshold flux values, as the percentage of vortex-forming area within the pattern grooves increases, and vortex-induced shielding increases.
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Membrane filtration fouling is a very complex process and is determined by many properties such as the membrane internal morphology, membrane pore structure, flow rate and contaminant properties. In
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Studying Fluid Characteristics Atop Surface Patterned Membranes via Particle Image Velocimetry
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