We have developed innovative membrane functionalisation technology for attaching functional groups to ceramic membranes, based on the Grignard reaction, in collaboration with the University of Antwerp. This allows advanced separation based on affinity – and not just by molecule size – tailored to the specific application. For in-process streams in the pharmaceutical and chemical sector, this offers opportunities for surprising optimisations and/or solutions for difficult separation processes. In highly polluting water streams, the functionalisation efficiently reduces membrane fouling. Thanks to the highly stable anchoring of the functional groups, this innovative technology can also be used in conditions that would otherwise lead to leaching of these groups.