Dataset on settling dynamics of microplastic particles sinking through exopolymer-induced rheological stratification

Published: 17 March 2025| Version 1 | DOI: 10.17632/ccm9k8pjft.1
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Description

This dataset includes (1) measurements of the settling dynamics of plastic spheres, disks, and rods (made of POM and PET) with dimensions smaller than 5 mm, representing microplastics (MPs). These measurements were conducted using a two-layer liquid column: a Newtonian artificial seawater (AS) layer and a non-Newtonian xanthan gum (XG) dispersion in AS, which creates a rheological transition between the two layers. (2) The dataset also contains rheological characteristics (flow and viscoelastic properties) of XG dispersions in AS. The dataset comprises nine experiments in total: six experiments with the XG-containing layer overlaid by the AS layer, and three with the AS layer overlaid by XG-containing layer. The sinking dynamics of the MPs were investigated in a settling column using visualization and Particle Tracking Velocimetry (PTV) methods to track the position of the particle centroids over time.

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Institutions

Politechnika Warszawska Wydzial Chemiczny, Polska Akademia Nauk Instytut Geofizyki

Categories

Polymer Rheology, Chemical Oceanography, Harmful Algal Blooms, Multiphase Flow, Sedimentation, Environmental Pollution, Multiphase Rheology, Rheology of Dispersed System, Non-Newtonian Fluid Mechanics, Food Rheology, Microplastics

Funding

National Science Center

2019/35/D/ST10/01135

Related Links

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https://www.sciencedirect.com/science/article/abs/pii/S0043135425004002?CMX_ID=&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&utm_acid=140291471&utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_in=DM550032&utm_medium=email&utm_source=AC_
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Article
https://www.sciencedirect.com/science/article/abs/pii/S0048969723073953
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