Leesu works on urban waters reclamation, following several approaches:

1. Alternative resources for various domestic and urban uses

Characterization of new resources (stormwater, greywater and mine water)

• Contamination of greywater and evolution during storage (PhD thesis S. Deshayes, S. Zhang)
• Optimization of roof water reclamation systems (PhD thesis Y. Qiao)

Analysis of constraints from centralized networks

• Diversifying the sources of water for the non-drinkable water network of Paris (thèse de C. Trinh)

2. The potential of alternative techniques for the management of rain water

Taking into account the urban forms (Eaubadd)

Taking into account the urban landscapes (PICRI Réinventer l’eau en ville)

3. Arrangements of public policies in territories

Taking into account the various forms of governance in urban projects of french and chinese cities (post-doc of Yinghao Li, PhD thesis of A. Ernest)

4. Carbon, nitrogen and phosphorus resources in wastewater

The potential use of separating urine from wastewater (Ocapi program - PhD thesis F. Esculier)

• Systems of food supply and excretion in urban territories and evaluation of their sustainability by substance fluxes analysis
• identification des verrous technologiques liés au chemin technologique du « tout à l’égout »

  

• prospective analysis of the conditions needed to reach the separation of urine and feces for their use in agriculture