Constant flux microfiltration with sieves with uniform pores

I. Drijer*, T.X. van de Laar, H. Fadhilatunnur, D. Tzompa Sosa, J.J.W. Sewalt, H. van Valenberg, C.G.P.H. Schro├źn, Wageningen University, Netherlands

Shear induced diffusion (SID) is a result of particles influencing the movement of other particles in flow. Large particles are more affected by this, and preferentially move to the centre of a channel. When using this principle in a closed channel prior to a microfiltration system that has uniform pores, filtration can be enhanced, and even pores bigger than the particles can be used for fractionation. It was previously shown that the process can be operated at constant flux and has low energy and water demand.

In this NanoNextNL project the focus is on setting up a computational fluid dynamics (CFD) model to describe the phenomena of SID in a porous system, including the transmission / retention of particles for different membrane designs. The first results describe the separation mechanism and flow profile and are validated with literature and experimental data. The results show that...

Session: M1 - Micro- and Ultrafiltration
Day: 12 October 2016
Time: 09:00 - 10:15 h