Eric D. van Hullebusch is a full professor in biogeochemistry of engineered ecosystems at the Institut de Physique du Globe de Paris, Université Paris Cité, France. His research is currently focusing on the implementation of biohydrometallurgical approaches for the recovery of technology critical elements (including selenium and tellurium) as well as polluted soils (bio)remediation with a particular focus on poly- and perfluoroalkyl substances (PFAS).