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Roger Pujol has spent his entire career in the wastewater treatment sector. He has worked with local authorities and decentralised services of the State, CEMAGREF, Degrémont, and Lyonnaise des Eaux.

François Virloget has worked successively for Suez Eau France, CIRSEE and SAUR. From 2013, as Director of the Baumette d’Angers treatment plant, he coordinated and optimized the water and sewage sludge treatment processes.

In his 43 years at the SIAAP, Michel Gousailles has developed strong skills in wastewater and sludge treatment. His expertise has led him to collaborate with ADEME, ANSES, ASTEE, IWA and several universities.

Since graduating from CNAM in Rouen, William Levasseur has taken part in numerous technical assistance and R&D missions in water treatment, including with the CIRSEE. Since 2005, he has worked with the Rouen Normandy Metropolis and its large water department.

Régis Ingouf has extensive technical expertise in the operation and management of groundwater resources. He has worked in several environmental and development departments.

Professor at the Ecole Nationale Supérieure de Chimie de Rennes, Pierre Le Cloirec is a chemical engineer, and holds PhDs in Chemistry and Physics. His research field is environmental engineering.

Abdelkrim Bouzaza has a PhD in Process Engineering and is a lecturer at the Ecole Nationale Supérieure de Chimie de Rennes. He also conducts research on air and water pollution control (adsorption, photocatalysis, plasma).

Jean-Luc Cécile is a specialist in the instrumentation used in water treatment. He has participated in the implementation of instrumentation for local authorities and industries, both in France and abroad.

Over 40 years, Pierre-André Liechti has acquired a solid knowledge of biological, chemical and advanced oxidation processes. His knowledge areas also include activated sludge treatment, bio-filtration, activated carbon and UV.

An electrical engineer, Pascal Fourmond has worked for the Compagnie Générale des Eaux for more than 25 years. As head of an enthusiastic team at the training centre, he has delivered effective educational engineering practices.

Laurent Gracia is a specialist in lead connections, pipe laying, new connections and meters, leak repairing, inventory management, site studies, estimates and invoicing of work, management and public work reception.

Gilbert Coucheroux specializes in water supply and has been an educator since 1983. At Campus Veolia in Romorantin, he has conducted training sessions on CATEC preparation, chlorine authorization, control devices, and more.