Roberta Hofman works as a senior scientist on the drinking water treatment team. She works with two types of processes to remove (mainly organic micro)pollutants from water: adsorption and oxidation. In adsorption, she studies the interaction between the surface of an adsorbent and the substances to be removed. For an absorbent, she uses specially developed materials in addition to active carbon (affinity adsorption). This last research took place within the European TAPES project (with e.g. TZW), and will now be getting a follow-up on a TKI project. In (advanced) oxidation, pollutions e.g. under the influence of UV rays, are broken down to make biodegradable compounds or even CO2 and water. Modelling the process plays an important role in reaching a better understanding of the process and in optimising the conditions and reactors. Research into the removal of medication from drinking water was done e.g. in the context of the European DEMEAU project (with partners including EAWAG), and Roberta researched the removal of medication from wastewater in the context of a TKI project at Panheel sewage treatment. She also studied the formation of possible by-products.