The Groundwater and Hydrogeochemistry group studies the hydraulic, chemical, thermal and mechanical processes that take place in porous media from pore to regional scale. The group employs mathematical and numerical approaches as well as laboratory and field scale experiments and sampling methods (using hydraulic, hydro-geochemical and environmental isotope data sampled directly or through specifically designed tests).
The group is active in the development of numerical and mathematical models and modelling techniques for complex porous media processes across spatial and temporal scales, laboratory and field scale experimentation and sampling and data analysis. This includes geospatial data and information management.
Applications include the assessment and management of groundwater resources, groundwater and soil remediation, the management of urban aquifers, the study of emerging pollutants in urban aquifers and artificial recharge facilities, the study of wetlands, seawater intrusion in coastal aquifers, water management in mining operations, civil works, storage of waste and/or its recovery, water decontamination methodologies, the study of the unsaturated zone, the study of the hydro-thermo-mechanical and chemical processes associated with the injection and extraction of fluids at great depth (storage of CO2, storage of nuclear waste, geothermal energy, shale gas, induced seismicity).
- Artificial recharge
- Emerging contaminants in groundwater
- Environmental Geochemistry
- Geochemical modeling
- Geologic carbon storage
- Geomechanics
- Geothermics
- Groundwater modeling and inverse problem
- Hydrogeochemistry
- Hydrogeology in mining areas and civil works
- Induced seismicity
- Low temperature geochemistry
- Multiphase flow in porous media
- Heterogeneity
- Flow and reactive transport in porous media
- Mixing and dispersion in porous media
- Reactive mixing in porous media
- Stochastic modeling and upscaling of porous media processes
- Tools and software development
- Urban hydrogeology
UPWATER
Understanding groundwater pollution to protect and enhance water quality
Groundwater plays a key role in providing water supplies and livelihoods to respond the pronounced water scarcity. Groundwater pollution is a widespread worldwide problem. The scientific and technological goals of the UPWATER project are:
-To provide scientific knowledge on identification, occurrence and fate of pollutants in the groundwater with cost-efficient sampling methods based on passive samplers.
-To develop sources apportionment methods to identify and quantify the pollution sources.
-To validate and assess the performance of bio-based engineered natural treatment systems designed as mitigation solutions.
The monitoring and mitigation solutions will be validated in 3 case studies (Denmark, Greece and Spain), representing different climate conditions and a combination of rural, industrial and urban pollution sources. Expected outcomes include amongst others updating the EU chemical priority lists, scaling-up the pilot bio-based solutions to demonstration scale, the adoption of some preventive measures in the case studies and the close-to-market development of the passive sampling devices.
Start Date: 01/11/2022 – End Date: 30/04/2026
Funding: European Project
https://www.upwater.eu/
CoPerMix
European training network on control prediction and learning in mixing processes
The CoPeRMix network brings together a collection of experts at the European scale from academia and industry, who have all adopted new angles of attack to the problem of mixing according to their needs and fields of application, in order to foster the emergence of a unified viewpoint, through intensive collaboration between different schools of thought and methods. This effort builds up on existing collaborations between several participants, and lectures or courses delivered by some of us in various university curricula in their own institution, and abroad. More precisely, this training network is the emanation of the “Mixing Days” organized by the consortium on a yearly basis (Marseille in 2016, Rennes in 2017, Barcelona in 2018 and Brussels in 2019), which have been the opportunity to conceive and share a new methodology: the lamellar description of mixing.
It consists in viewing a mixture as a set of elongated lamellae and sheets and understanding how they are stretched and dispersed by the stirring flow. This first step provides the necessary information to address the stirring/molecular diffusion coupling, leading to the complete statistical description of the mixing process i.e. the full concentration distribution. This disruptive vision has prompted new numerical (Diffusive Strip Method) and experimental methods. They offer an unprecedented opportunity of accurately describe Stirring protocols which is the ground to understanding and model- ling Mixing and its Impact in a diversity of fields. This lamellar description of mixing provides a consistent and invertible theoretical framework giving us also the opportunity to Learn from mixed scalar fields.
Very promising outcomes are expected as the CoPerMix programme unites leading academic and industrial partners with a broad expertise in the fundamentals and applications of mixing in a very wide range of fields.
The CoPeRMix network brings together a collection of experts at the European scale from academia and industry, who have all adopted new angles of attack to the problem of mixing according to their needs and fields of application, in order to foster the emergence of a unified viewpoint, through intensive collaboration between different schools of thought and methods. This effort builds up on existing collaborations between several participants, and lectures or courses delivered by some of us in various university curricula in their own institution, and abroad. More precisely, this training network is the emanation of the “Mixing Days” organized by the consortium on a yearly basis (Marseille in 2016, Rennes in 2017, Barcelona in 2018 and Brussels in 2019), which have been the opportunity to conceive and share a new methodology: the lamellar description of mixing.
It consists in viewing a mixture as a set of elongated lamellae and sheets and understanding how they are stretched and dispersed by the stirring flow. This first step provides the necessary information to address the stirring/molecular diffusion coupling, leading to the complete statistical description of the mixing process i.e. the full concentration distribution. This disruptive vision has prompted new numerical (Diffusive Strip Method) and experimental methods. They offer an unprecedented opportunity of accurately describe Stirring protocols which is the ground to understanding and model- ling Mixing and its Impact in a diversity of fields. This lamellar description of mixing provides a consistent and invertible theoretical framework giving us also the opportunity to Learn from mixed scalar fields.
Very promising outcomes are expected as the CoPerMix programme unites leading academic and industrial partners with a broad expertise in the fundamentals and applications of mixing in a very wide range of fields.
