Flow-Induced Intermittent Transport Shapes Colloid Filtration in Complex Media

Abstract

Colloidal transport and filtration in porous media are commonly described by single-collector models that assume an underlying homogeneous structure. We use microfluidic experiments, particle tracking, and simulations to observe pore-scale and macroscopic filtration. We show that colloidal trajectories in heterogeneous porous structures are inherently intermittent and composed of flights far from grains and dives near their surfaces, where attachment can occur. We propose a stochastic continuous-time random walk model to link this intermittent behavior to macroscopic deposition profiles and breakthrough curves.

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BibTeX RIS

BibTeX

@article{miele2026flowinduced,
  title = {{Flow-Induced Intermittent Transport Shapes Colloid Filtration in Complex Media}},
  author = {Filippo Miele and Ankur Deep Bordoloi and Pietro de Anna and Marco Dentz and Hervé Tabuteau and Veronica L. Morales and Partha Kumar Das and Sascha Hilgenfeldt},
  journal = {Physical Review Letters},
  year = {2026},
  month = sep,
  doi = {10.1103/122c-f92l},
  url = {https://hal.science/hal-05767010v1},
  note = {CC BY},
}

RIS

TY  - JOUR
TI  - Flow-Induced Intermittent Transport Shapes Colloid Filtration in Complex Media
AU  - Filippo Miele
AU  - Ankur Deep Bordoloi
AU  - Pietro de Anna
AU  - Marco Dentz
AU  - Hervé Tabuteau
AU  - Veronica L. Morales
AU  - Partha Kumar Das
AU  - Sascha Hilgenfeldt
PY  - 2026
DA  - 2026/09/28
JO  - Physical Review Letters
DO  - 10.1103/122c-f92l
UR  - https://hal.science/hal-05767010v1
AB  - Colloidal transport and filtration in porous media are commonly described by single-collector models that assume an underlying homogeneous structure. We use microfluidic experiments, particle tracking, and simulations to observe pore-scale and macroscopic filtration. We show that colloidal trajectories in heterogeneous porous structures are inherently intermittent and composed of flights far from grains and dives near their surfaces, where attachment can occur. We propose a stochastic continuous-time random walk model to link this intermittent behavior to macroscopic deposition profiles and breakthrough curves.
SN  - 0031-9007
SN  - 1079-7114
ER  -

Abstract

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