Our research in this topic aims to understand the cycle, the dynamics and the impacts of organic and inorganic elements in the different compartments of the environment (water, soil, atmosphere). Particular focus is paid to the interactions between contaminants and biota (plants, microorganisms, humans) in order to characterize (eco)toxicological impacts. At a broader temporal and spatial scale, evolution of soils under various constraints is also studied.
Coordination : Jérôme Labille
The physical and chemical properties of natural and manufactured nanophases are different from those of mineral phases of the same chemical composition but of larger size. These properties, in particular an increased reactivity specific to their nanoparticle state, imply novel behaviours in the environment in which our team is interested (e.g. transfer in porous media, stabilization of organic compounds in soils, adsorption of pollutants). In parallel, work is being carried out to push back the limits of theoretical knowledge on transitions of characterics between nanometric phases at different stages of growth.
Our current so-called linear economy is based on a simple value creation principle that extracts, transforms, consumes and discards resources. This model, combined with mass consumption and exponential population growth, leads to a dynamic that cause increasing pressure on our resources and territories. Our objective is to find global solutions that preserve resources and satisfy needs and uses. From a circular economy perspective, the team is interested in the eco-design of materials and processes to limit the anthropogenic impact on resources (water, soil), the quality and reuse of these resources and waste in relation to land use planning (water, soil, contaminated sites), and finally the recycling of a rare and strategic resource such as critical metals.