Water contains a multitude of different particles, from living organism and their eggs alongside particulates ranging from sand and erosion-related elements to more problematic pollutants such as microplastics. Size-sorting and identifying microparticles from liquids is fundamental for multiple reasons. Microparticles can be, for example, microplastics, but also parasite eggs or plankton. All those particles have in common to be in the range of hundreds of micrometers, and their concentration can be as low as a few particles per liter.