Mechanics and energetics Leesu . Water, environment and urban systems laboratory A joint laboratory École nationale des ponts et chaussées ( Enpc ) and Université Paris-Est Créteil (UPEC). Leesu’s research focuses on water in urban environments through interdisciplinary and multi-scale approaches. In response to the challenge of making cities sustainable and resilient to global changes (climate, urban planning, regulations and management methods), the work aims to improve understanding of water and contaminant flows in urban areas, as well as related practices and uses, and to develop innovative concepts for urban water management. > Read more > Read more Research themes • Towards new resilient models for urban water management : Integrated stormwater management, source separation and reuse of human excreta, use of non-conventional water sources • Sources and fate of contaminants in urban and peri-urban environments: Organic matter in wastewater treatment plants, micropollutants and plastics (micro and macro) in the urban continuum, ecotoxicological risks linked to emerging contaminants, microbiological quality of urban waters • Functioning and territorial management of receiving environments : Functioning of aquatic environments (lakes, rivers), functioning of natural and anthropized soils, water territories Key figures 29 permanent staff 9 postdoctoral students 29 PhD students 49 publications in 2024 discover LEESU website > discover LEESU website > Leesu conducts applied and social engaged research. Its work rely on experimentation and modeling to study the impacts of global change, the diffusion of innovations, the inherent barriers and drivers, value chains building, stakeholder positioning, and socio-territorial embeddedness. Leesu is committed to transferring the knowledge it produces to local authorities, industry stakeholders, and the citizens.