Determination of Microplastics' Vertical Concentration Transport (Rouse) Profiles in Flumes.

ABSTRACT: The transport behavior of microplastics (MPs) in the fluvial environment is scarcely researched. Besides settling velocities and critical shear stress for erosion, only a few investigations aim at MPs' vertical concentration profile and the underlying theory required. Therefore, this paper's experiments investigate vertical concentration profiles of approximately spherical MP particles (d = 1-3 mm) with densities close to water (0.91-1.13 g/cm³) in flow channels, coupling them with fundamental theory for the first time. The experiments were conducted in a tiling flume (slope of 0-2.4%) at 67 and 80 mm water depth, with a turbulent flow, velocities ranging from 0.4 to 1.8 m/s, and turbulence kinetic energy from 0.002 to 0.08 m²/s². The measured profil

SUBMITTER: Born MP 

PROVIDER: S-EPMC10132703 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature