Development of an Integrated Microalgae-PNSB Co-Culture System for Sustainable Biohydrogen Production and Waste Valorization: A Circular Bioeconomy Approach

This thesis project focuses on developing a sustainable solution for producing and purifying biohydrogen (BioH₂). It proposes an innovative approach based on a co-culture system that combines microalgae and purple non-sulfur bacteria (PNSB) in a shared light environment. Designed to produce BioH₂ and biomass from organic waste simultaneously, this system addresses the challenges of scalable renewable technologies and is part of a circular bioeconomy approach. In collaboration with CEA Tech's DRT, the project involves modelling the metabolic interactions between these microorganisms to optimise their growth and joint production. It also involves developing a closed-loop system in which the microalgae recycle the emitted CO₂, thus purifying the BioH₂ and generating valuable biomass. The project also plans to design an advanced photobioreactor (PBR) that optimises light distribution and gas management to maximise system efficiency, paving the way for more efficient, environmentally friendly renewable energy production.

Le laboratoire Chimie et Biologie des Métaux (CBM) mène des travaux à l'interface de la chimie et de la biologie. Ces travaux portent sur l'étude de la structure, de l'activité et de la régulation des systèmes biologiques complexes transportant et utilisant des ions métalliques, ainsi que sur l’exploitation de ces connaissances pour élaborer des systèmes bio-inspirés possédant des structures et/ou des fonctions similaires.

https://www.cbm-lab.fr/Pages/BEE/Presentation.aspx

• Master II : biochimie, microbiologie ou biologie moléculaire
• Compétences en culture microbienne et analyse biochimique.
• Connaissances en modélisation (CFD) et en contrôle de procédés (IA) appréciées.
• Motivation pour le travail en équipe et l’interdisciplinarité.