CE22 - Sociétés urbaines, territoires, constructions et mobilité

Sustainable concrete for wastewater treatment plants – WWTConcrete

Submission summary

Improvements of people health and of environmental quality of water are mainly based on wastewater treatment plants. Numerous progresses have been carried out concerning treatment processes but few studies deal with the concrete infrastructure degradations observed for about ten years in particular in nitrification/denitrification treatment units. Currently, the need of knowledge improvement is fundamental both for repair of existing constructions and for design of new constructions. WWTConcrete (Sustainable concrete for wastewater treatment plants) project deals with this objective and its multidisciplinary scientific partnership has defined a proposal on the infrastructure/material/process links in order to define operational strategies for sustainable infrastructure.
The general strategy for the project consists in assessing the degradation state of concrete in SIAAP facilities and to correlate the observed degradations with recorded data on the effluents, in designing a lab pilot and implementing tests to reproduce real processes in well-defined conditions, in decoupling chemical and biochemical phenomena to understand cementitious material degradation, and in modelling biodeterioration both at the scale of cementitious material and at the scale of treatment unit.
The expected deliverables of the project concern digital tool to optimise both material selection and operative conditions of the treatment process, and recommendations for evolving current standards, given that it an essential step for technological and skills transfer in particular in the field of civil engineering.

Project coordination

Marielle GUEGUEN (UNIV. Gustave Eiffel - MAST)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

UNIV. Gustave Eiffel - MAST UNIV. Gustave Eiffel - MAST
SIAAP - DI SIAAP - Direction Innovation
LMDC LABORATOIRE MATERIAUX ET DURABILITE DES CONSTRUCTIONS
LGE LABORATOIRE GÉOMATÉRIAUX ET ENVIRONNEMENT

Help of the ANR 468,362 euros
Beginning and duration of the scientific project: February 2021 - 48 Months

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