who are we?


The Research Unit REVERSAAL “Reduce, Reuse, and Valorize Residual Water Resources” was created on January 1, 2018. It conducts research on processes for the recovery and treatment of urban water, including wastewater, rainwater and sewage sludge. The objective of the research unit is to advance knowledge and develop relevant and innovative recommendations in terms of the design, operation, and optimization of treatment facilities. We develop innovative methods and tools that are transferable to public and private organizations. Our research contributes to conceptualizing wastewater treatment plants of the future, and their integration into the sewer network-treatment plant-surface water/soil continuum. The research unit is comprised of researchers, technicians, students, and interns (up to 50 people when running at full capacity).

REVERSAAL’s research is in line with European and national policies on 1) protection of receiving environments by improving the treatment performance of eco-technologies; 2) promotion of the bioeconomy through resource recovery; 3) adaptation to climate change and energy transition through the energy optimization of eco-technologies, and 4) the production of methane from sludge.

The researchers and engineers of REVERSAAL define, program, and coordinate multidisciplinary research activities and projects. The research approach is based on the coupling of experimentation at different scales (from the laboratory to industrial systems) and modelling, with a strong capacity for field experiments (observatories, industrial sites). Experimental work is carried out by a technical group of four people who work regularly in the Feyssine Research Hall, on the Craponne site, in the Centre’s technical premises at La Doua and on wastewater treatment plants.


Arrival of Gabrielle Favreau – DOM Project

REVERSAAL Research Unit welcomes Gabrielle Favreau, graduated from INSA Lyon in 2019 and specialized in Energy and Environment engineering. Since 2008, the OFB (Office français de la Biodiversité) and INRAE have a research partnership for the development of sanitation in the DOM (Martinique, Mayotte, Guadeloupe, Guyana, Reunion Island). These research projects on the sanitation issues …

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MULTISOURCE Annual Meeting and Summer School

The first MULTISOURCE Annual Meeting and Summer School took place in Lyon, between June 27 and July 1st. Annual Meeting: After one whole year, partners involved in this European project met in person and exchanged through workshops, a world café with posters presentation and visits of onsite Nature-based SOlutions for a better urban water management. …

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Arrival of Sophie Besnault – EPNAC national working group

Sophie Besnault joined the research unit REVERSAAL on June 2nd 2022 as a research engineer for an 18 month contract. She will be in charge of the national working group EPNAC.  The EPNAC working group, started and managed by INRAE, gathers all the public stakeholders on wastewater treatment. His main objective is to produce and …

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Arrival of Mathilde Lepage – Pierre-Bénite WWTP project

Mathilde Lepage joined the REVERSAAL Research Unit on January 3rd, 2022, as a research engineer, for a 18-month contract. She will participate, in collaboration with the Greater Lyon urban community (« Grand Lyon »), to the optimization of the operation of Pierre-Bénite wastewater treatment plant. She will initially be in charge of the development of …

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