SubsidieMeestersControlling particle flow driven by local concentration gradients in geological porous media
TRACE-it aims to enhance groundwater remediation by utilizing in situ solute concentration gradients to control the transport of colloidal particles in porous media through diffusiophoresis.
Projectdetails
Introduction
Many engineering applications foresee the usage of small particles for groundwater remediation or for sealing damaged geological confinement barriers. However, delivering materials to a contaminated or damaged region is challenging. TRACE-it aims at controlling the flow of colloidal particles in subsurface geological environments using in situ solute concentration gradients.
Diffusiophoresis
The phenomenon, known as diffusiophoresis, has tremendous potential to move colloids to regions that are inaccessible by conventional transport. Diffusiophoretic transport in porous media, however, has received very little attention so far, especially in standard transport in porous media models where it remains unconsidered.
Research Questions
- What is the magnitude and location of solute concentration gradients produced during subsurface processes?
- How to use these gradients to transport colloids towards target regions?
The answers will be found through a combined experimental-modelling approach to:
- Measure coupled hydro-electro-chemical dynamics.
- Characterize concentration gradients generated in situ in geological porous media.
- Identify the influence of concentration gradients on particle transport and develop a macroscale model of transport in porous media that includes diffusiophoresis.
Methodology
TRACE-it integrates the usage of microfluidic experiments, observation techniques, and multi-scale computational fluid dynamics to describe the transport mechanisms at the pore-scale before upscaling to the continuum scale.
Applications
The experimental-modelling toolset will open new ways for moving colloidal particles by sensing chemical gradients generated naturally or from human activity, leading them to their target such as oil, contaminants, or reacting minerals. During column-scale experiments, controlling colloid transport will be achieved through the characterization of solute concentration gradients and the use of specifically designed particles.
Financiële details & Tijdlijn
Financiële details
| Subsidiebedrag | € 1.499.985 |
| Totale projectbegroting | € 1.499.985 |
Tijdlijn
| Startdatum | 1-6-2022 |
| Einddatum | 31-5-2027 |
| Subsidiejaar | 2022 |
Partners & Locaties
Projectpartners
- UNIVERSITE D'ORLEANSpenvoerder
- CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Land(en)
Vergelijkbare projecten binnen European Research Council
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|---|---|---|---|---|
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Colloidal control of multi-phase flow in geological porous media
The COCONUT project aims to enhance oil recovery and groundwater remediation by developing predictive models for colloid-controlled two-phase flow in complex geological formations.
Unravelling unsteady fluid flows in porous media with 3D X-ray micro-velocimetry
FLOWSCOPY aims to revolutionize the understanding of fluid flows in opaque porous materials by developing a fast 3D X-ray imaging method to measure complex flow dynamics at micro and macro scales.
Gas-water-mineral interfaces in confined spaces: unravelling and upscaling coupled hydro-geochemical processes
This project aims to enhance Reactive Transport Modeling by integrating microfluidic experiments to better understand hydro-geochemical processes, improving predictions of subsurface contaminant behavior.
Flow-induced morphology modifications in porous multiscale systems
This project aims to understand and predict flow transport and medium evolution in porous media with morphology modifications using numerical simulations, experiments, and theoretical modeling.
Upscaling reactive transport in unsaturated media: from the pore to the vadose zone
Uplift aims to enhance vadose zone reactive transport models by integrating pore-scale dynamics with statistical features to improve predictions of nutrient and contaminant movement.
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