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@ARTICLE{Roa:190046,
      author       = {Roa, Rafael and Zholkovskiy, Emiliy K. and Naegele,
                      Gerhard},
      title        = {{U}ltrafiltration modeling of non-ionic microgels},
      journal      = {Soft matter},
      volume       = {11},
      number       = {20},
      issn         = {1744-6848},
      address      = {London},
      publisher    = {Royal Soc. of Chemistry},
      reportid     = {FZJ-2015-03005},
      pages        = {4106-4122},
      year         = {2015},
      abstract     = {Membrane ultrafiltration (UF) is a pressure driven process
                      allowing for the separation and enrichment of protein
                      solutions and dispersions of nanosized microgel particles.
                      The permeate flux and the near-membrane
                      concentration-polarization (CP) layer in this process is
                      determined by advective-diffusive dispersion transport and
                      the interplay of applied and osmotic transmembrane pressure
                      contributions. The UF performance is thus strongly dependent
                      on the membrane properties, the hydrodynamic structure of
                      the Brownian particles, their direct and hydrodynamic
                      interactions, and the boundary conditions. We present a
                      macroscopic description of cross-flow UF of non-ionic
                      microgels modeled as solvent-permeable spheres. Our
                      filtration model involves recently derived semi-analytic
                      expressions for the concentration-dependent collective
                      diffusion coefficient and viscosity of permeable particle
                      dispersions [Riest et al., Soft Matter, 2015, 11, 2821].
                      These expressions have been well tested against computer
                      simulation and experimental results. We analyze the CP layer
                      properties and the permeate flux at different operating
                      conditions and discuss various filtration process efficiency
                      and cost indicators. Our results show that the proper
                      specification of the concentration-dependent transport
                      coefficients is important for reliable filtration process
                      predictions. We also show that the solvent permeability of
                      microgels is an essential ingredient to the UF modeling. The
                      particle permeability lowers the particle concentration at
                      the membrane surface, thus increasing the permeate flux.},
      cin          = {ICS-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      SFB 985 B06 - Kontinuierliche Trennung und Aufkonzentrierung
                      von Mikrogelen (B06) (221475706)},
      pid          = {G:(DE-HGF)POF3-551 / G:(GEPRIS)221475706},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000354449100018},
      pubmed       = {pmid:25921331},
      doi          = {10.1039/C5SM00678C},
      url          = {https://juser.fz-juelich.de/record/190046},
}