Core-shell particles as model compound for studying fouling

Morten Lykkegaard Christensen, Troels Bach Nielsen, Morten Boel Overgaard Andersen, Kristian Keiding

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch


Synthetic colloidal particles with hard cores and soft, water-swollen shells were used to study cake formation during ultrafiltration. The total cake resistance was lowest for particles with thick shells, which indicates that interparticular forces between particles (steric hindrance and electrostatic repulsion) influenced cake formation. At low pressure the specific cake resistance could be predicted from the Kozeny-Carman equation. At higher pressures, the resistance increased due to cake compression. Both cake formation and compression were reversible. For particles with thick shells the permeate flux could be enhanced by lowering the pressure. Hence, the amount of water-swollen material influences both cake thickness and resistance.
Original languageEnglish
Title of host publicationWFC10 Proceedings : M-sessions
PublisherSociety for Chemical and Process Engineering
Publication date2008
Publication statusPublished - 2008
EventWorld Filtration Congress - Leipzig, Germany
Duration: 14 Apr 200818 Apr 2008
Conference number: 10


ConferenceWorld Filtration Congress



  • Compressibility
  • Fouling
  • Core-shell particles
  • Ultrafiltration

Cite this

Christensen, M. L., Nielsen, T. B., Andersen, M. B. O., & Keiding, K. (2008). Core-shell particles as model compound for studying fouling. In WFC10 Proceedings: M-sessions (pp. 261-264). Society for Chemical and Process Engineering.