Linking microgel particle properties to filtration behaviour through microscopic observations

PhD defence

Linking microgel particle properties to filtrationbehaviour through microscopic observations

PhD candidate Izabella I (Izabella) Bouhid de Aguiar MSc
Promotor prof.dr.ir. CGPH (Karin) Schroen
Co-promotor dr M Meireles-Masbernat
dr A Bouchoux
Organisation Wageningen University
Date

Wed 5 June 2019 11:00 to 12:30

Venue Auditorium, building number 362
Generaal Foulkesweg 1
362
6703 BG Wageningen
0317-483592

Summary

Membrane filtration is a process that is widely used nowadays. From desalination plants for the production of drinking water from sea water in the Middle East to the production of dairy products, beer and wine. One of the biggest challenges in membrane filtration is the decrease in efficiency caused by the accumulation of matter on top of the membrane (filter) what we call cake layer. For that reason understanding the mechanisms of cake layer formation as well as individual particle behavior is important to achieve the optimization of the membrane process.
In this thesis we take a fundamental approach to study the cake layer formation and behavior as well as individual particle behavior. We use microgels as model particles and microfluidic systems as model filtration systems. We are able to describe their behavior and propose a theory to predict particle conformation under pressure being part of a cake layer.