Topic "Processes for water treatment and reuse"

Today, as water resources are deteriorating in quality and quantity, robust and reliable processes must be proposed to enable a circular water economy. The solution lies in the design and development of efficient separation and oxidation processes for the treatment and/or reuse of wastewater, requiring the consideration of the complexity of fluids. Membrane filtration processes and membrane contactors are used for water quality reclamation in relation to usage and nutrients (N, P). The approach of source separation of pollutions is also studied in order to allow a reduction of the toxic impact of fluids (urine/black water/grey water) and an intensification of the processes. The study of certain micropollutants (metals, pharmaceuticals, pesticides, viruses, etc.), biological and chemical degradation and retention with their limiting phenomena are also addressed in this theme. The means of control of membrane clogging in membrane bioreactors, reverse osmosis and ultrafiltration are areas of study. Quorum quenching in particular is used as a tool to control the phenomena at the membrane interface and to maintain efficient but low energy hydrodynamic conditions in membrane bioreactors. The processes are developed for the reuse of industrial and domestic wastewater.