See Soft matter, Fluidics and Interfaces (SFI)

Student assignments

  • Multicomponent nanofiltration modeling

    Nanofiltration membranes are commonly employed in industrial practice for separations of molecular species while working at relative low operation pressures. The unique property of these membranes is that they allow passage of certain solutes, while they can retain others. This makes nanofiltration a cost-effective step in the separation or purification of several streams. This can for instance be drinking water production, or resource recovery from waste streams. For an effective process, it is essential to understand the transport of the different solutes to and through the membrane. 

    One observed non-ideality is the emergence of non-intuitive phenomena, such as negative retention of solutes (the permeate of a process is more concentrated than the retentate). This is, in particular, more common in mixture systems due to the fascinating non-ideal thermodynamics involved and has important consequences in the design and operation of membrane processes for separations. Building a model framework that can capture these effects and understand the role of mixture interactions in a simple manner is therefore of crucial importance.

    In this assignment, you will work to build and compare multicomponent mass transfer models and compare the role of choosing an effective mixture thermo-dynamics rule + model framework in describing experimental data for hollow fiber filtration. The aim is to be able to describe industrially relevant hollow fiber filtration data obtained from actual membrane filtration experiments. The assignment will be performed at the UT in close collaboration with an industrial partner (NX Filtration).

    For more information please contact Jeff Wood (j.a.wood@utwente.nl) or Joris de Grooth (j.degrooth@utwente.nl)