École Doctorale



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ECOLE DOCTORALE

« Mécanique, Energétique, Génie Civil, Procédés »

ED 468




Vous êtes cordialement invités à la soutenance de la thèse de
Ana Barbara BISINELLA DE FARIA

18/10/2016 à 10h

Salle des thèses INSA


Development of an integrated approach for wastewater treatment plant optimization based on dynamic modelling and environmental assessment
Résumé

Wastewater treatment plants are moving towards energy and nutrients recovery facilities. Simultaneously, they are submitted to stricter regulation with respect to environment and human health. Facing the great challenge of reducing operational costs along with the reduction of environmental impacts and the guaranty of plants robustness, tools might be developed in order to provide an integrated assessment. The goal of this work is to develop a reliable and predictive framework containing rigorous dynamic wide-plant modelling, extended boundaries life cycle assessment for scenarios evaluation and an efficient multi-objective optimization tool. The developed framework for environmental evaluation coupled to dynamic modelling was initially applied to several case studies including urine source separation, enhanced primary clarification and urine treatment by nitritation/ anaerobic ammonium oxidation, offering both performance results and environmental hotspots. Given the important benefits of the urine source separation provided by the previous results, a flexible and dynamic phenomenological influent generator was adapted in order to provide realistic dynamic data concerning urine and wastewater streams in different urine retention scenarios. Finally, as the complex combination of biological, chemical and physical processes leads to a computational expensive problem, a feasibility study (computational time and reliability) on the multi-objective optimization was conducted. Obtaining a set of solutions that avoids any prior discrimination among costs, environment and performance allowed thus the discussion of the involved trade-offs. Finally, the complete framework was applied to several case studies lightening on operational aspects of more sustainable options on wastewater management and treatment.



Mots-Clés: Wastewater; Modelling; Life Cycle Assessment; Multi-Objective Optimization; Urine Source Separation
Etablissement d’inscription : INSA Toulouse - LISBP
Composition du Jury:

Jean-Philippe STEYER (Rapporteur)

Aurora SECO (Rapportrice)

Hélène HAUDUC (Examinatrice)

Kai UDERT (Membre invité)

Mathieu SPERANDIO (Directeur de thèse)



Aras AHMADI (Codirecteur de thèse)

Ligia TIRUTA-BARNA (Coencadrante de thèse)

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