Filter media: Multilayer PP filters for the separation of O/W emulsions

Oil droplet coalescence and the separation of emulsions are industrially relevant processes. In this article, Dr Andrzej Krasinski of Warsaw University of Technology discusses his studies into the separation of oil-in-water emulsions by forced flow through meltblown polypropylene (PP) fibrous media. The research focuses on the structural design of the inlet layer and examines the effects of the fibre size, bed depth and flowrate.