Details
| Original language | English |
|---|---|
| Pages (from-to) | 9362-9375 |
| Number of pages | 14 |
| Journal | Environmental Science & Technology |
| Volume | 57 |
| Issue number | 25 |
| Early online date | 16 Jun 2023 |
| Publication status | Published - 27 Jun 2023 |
Abstract
Incipient motion conditions for 57 regular (spheres, cylinders, disks, square plates, cubes, square prisms, rectangular prisms, tetrahedrons, and fibers) and eight irregular microplastic particle groups, having various sizes and densities, are investigated in a circular flume. The present data set is combined with additional data from the literature and systematically analyzed. A new framework is developed for predicting incipient motion conditions for foreign particles, accounting for variations in static friction, hydraulic roughness, and hiding-exposure effects. Via this framework, incipient motion conditions for microplastic particles lying on a sediment bed are, for the first time, reconciled with the classical Shields diagram.
Keywords
- Shields parameter, critical shear stress, hiding-exposure, hydraulic roughness, nonbuoyant, particle threshold
ASJC Scopus subject areas
- Chemistry(all)
- Environmental Science(all)
- Environmental Chemistry
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In: Environmental Science & Technology, Vol. 57, No. 25, 27.06.2023, p. 9362-9375.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Shields Diagram and the Incipient Motion of Microplastic Particles
AU - Goral, Koray Deniz
AU - Guler, Hasan Gokhan
AU - Larsen, Bjarke Eltard
AU - Carstensen, Stefan
AU - Christensen, Erik Damgaard
AU - Kerpen, Nils B
AU - Schlurmann, Torsten
AU - Fuhrman, David R
N1 - ACKNOWLEDGMENTS This research has been financially supported by the Independent Research Fund Denmark project MPCOAST: MicroPlastic transport processes in the COASTal environment, grant no. 0136-00227B. The second author additionally acknowledges financial support from The Scientific and Technical Research Council of Turkey (TUBITAK) under the 2219 International Postdoctoral Research Fellowship Programme. This support is greatly appreciated.
PY - 2023/6/27
Y1 - 2023/6/27
N2 - Incipient motion conditions for 57 regular (spheres, cylinders, disks, square plates, cubes, square prisms, rectangular prisms, tetrahedrons, and fibers) and eight irregular microplastic particle groups, having various sizes and densities, are investigated in a circular flume. The present data set is combined with additional data from the literature and systematically analyzed. A new framework is developed for predicting incipient motion conditions for foreign particles, accounting for variations in static friction, hydraulic roughness, and hiding-exposure effects. Via this framework, incipient motion conditions for microplastic particles lying on a sediment bed are, for the first time, reconciled with the classical Shields diagram.
AB - Incipient motion conditions for 57 regular (spheres, cylinders, disks, square plates, cubes, square prisms, rectangular prisms, tetrahedrons, and fibers) and eight irregular microplastic particle groups, having various sizes and densities, are investigated in a circular flume. The present data set is combined with additional data from the literature and systematically analyzed. A new framework is developed for predicting incipient motion conditions for foreign particles, accounting for variations in static friction, hydraulic roughness, and hiding-exposure effects. Via this framework, incipient motion conditions for microplastic particles lying on a sediment bed are, for the first time, reconciled with the classical Shields diagram.
KW - Shields parameter
KW - critical shear stress
KW - hiding-exposure
KW - hydraulic roughness
KW - nonbuoyant
KW - particle threshold
UR - http://www.scopus.com/inward/record.url?scp=85163828757&partnerID=8YFLogxK
U2 - 10.1021/acs.est.3c02027
DO - 10.1021/acs.est.3c02027
M3 - Article
C2 - 37322884
VL - 57
SP - 9362
EP - 9375
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 25
ER -