Final Thesis

Fouling Behavior of Turbulence Promoters

Key Info

Basic Information

Unit:
Chemical Process Engineering
Type:
Masterthesis / Bachelorthesis
Focus/Key Topic:
experimental
Date:
immediately

Contact

Membrane technology is often applied for water treatment. One major limiting factor degrading the membranes’ performance is fouling.  Fouling includes all processes leading to a reduced filtration performance such as pore blocking, cake formation or biofilm formation.

Methods reducing fouling are of high interest. Turbulences or high cross-flow velocities lead to higher shear-rates and induce vortices. These effects can help to reduce the deposition of solids on the membrane surface which leads to lower fouling rates. So-called turbulence promoters or static mixers are used to enhance mass transfer and to induce vortices. These promoters or mixers are e.g. spiral inserts which are placed into the membrane’s flow channel. The aim is to investigate if turbulence promoters can be applied to reduce fouling in membrane processes.

Within this thesis, one or several of the following topics can be looked at:

  • How does the geometry of the turbulence promoters influence fouling mechanisms?
  • Influence of the foulant (particles, colloids, microorganisms,…)
  • Development of a standard measurement procedure to measure fouling
  • Optimization of the geometry of the turbulence promoters

What you get:

  • Experience in lab work
  • Experience in membrane filtration
  • Participation in an exciting research project
  • A comprehensive supervision

Please do not hesitate to contact me (sarah.armbruster@avt.rwth-aachen.de) if you are interested in membrane filtration and want to know more about this topic. I am looking forward to hearing from you.