Harnessing microbial biomineralization for Li and Co biorecovery and atmospheric carbon capture from geothermal brines

This PhD project aims to assess the feasibility of harnessing microbial biomineralization processes in geothermal systems for the recovery of critical raw materials (using Li and Co as model CRM) and atmospheric CO₂ capture, via microbially induced carbonate precipitation. In particular, the project seeks to explore whether indigenous geothermal reservoir microbiota can be leveraged to catalyse selective metal precipitation, immobilisation, or sorption under geothermal-relevant physicochemical conditions.

A central objective will be to understand how microbial metabolisms and cell surface properties influence biomineralization pathways and metal partitioning in high-temperature, saline, and pressurised environments. In addition, the project aims to evaluate the synergistic potential of combining microbial processes with Advanced Oxidation Processes (AOPs) to enhance metal recovery efficiency while ensuring environmental compatibility. Ultimately, the research seeks to establish a biologically driven strategy linking geothermal brine valorisation with carbon capture.

More information here: https://euraxess.ec.europa.eu/jobs/410972

The laboratory of microbiology of the University of Neuchâtel is home to a team of scientists and technical staff united by their passion for understanding the processes that underlie the diversity and functioning of microbial ecosystems.
Their combined expertise enables the laboratory to work on a wide range of topics, from basic science to applied research and environmental monitoring. To achieve this, we combine cutting-edge tools such as 3D printing and -omics approaches with traditional laboratory experiments.

The ideal candidate holds a Master’s degree in a relevant field and demonstrates strong motivation for interdisciplinary research. You possess a solid background in microbiology—ideally environmental or geomicrobiology—with a deep understanding of biomineralization and microbe–mineral interactions. Proficiency in molecular biology (DNA/RNA extraction, PCR, metagenomics) and basic geochemistry (metal cycling, speciation) is essential, as is the ability to manage laboratory-based bioreactors.

Fluency in English and data analysis (R or Python) is mandatory. We highly value experience with extremophiles, geothermal systems, or geochemical modeling (e.g., PHREEQC). Successful applicants will be collaborative, eager to participate in international secondments, and capable of bridging the gap between microbiology, geochemistry, and industrial application.