Mathematics - Colloquium
Friday, November 15, 2013
11:00 AM-12:00 PM
ABSTRACT: Filtration and separations operations are ubiquitous in the modern world. For example, removal of bacteria and viruses is essential to protect municipal water supply, separation of macromolecules from cell debris is a key step in bio-pharmaceutical production and removal of nanometer scale impurities from process fluids are necessary for integrated circuit production.
In filtration a fluid containing suspended particles flows through channels bounded by porous material. The suspended matter may be deposited on the surface of the porous material, trapped in the interior, or pass through freely leading to separation of particles of different types but also to fouling of the porous media. The particles may be bacterial cells, proteins, catalyst fines or combinations of many materials occurring in a wide range of industrial processes. The fluid and mixture flow problems are diverse and complex.
The filtration industry is challenged by demands for continually increasing separations precision and reliability in the face of very real commercial requirements to get products to market fast and reduce the cost of ownership for customers. In this talk I will survey some of the more interesting problems I have encountered while attempting to meet these challenges, the partial solutions that have enabled product development and my view of directions for further work. Included are flow in porous channels, issues with crossflow processes, flow distribution in chromatography systems and swirling flow systems for generating protein separations without filtration media.
Support by NSF Grant DMS-1153984: Mathematical Problems in Industry (MPI) Workshop
Suggested Audiences: Adult, College
Last Modified: October 1, 2013 at 9:27 AM