Wetsus is a European centre of excellence for sustainable water technology, connecting fundamental research at universities with industrial partners. Phosphate recovery is an important topic in water treatment and Wetsus considers that ESPP makes a very relevant contribution to knowledge exchange and building of relationships within Europe. Research at Wetsus is organised by themes which cluster different public and private stakeholders with similar interests. In the phosphate recovery theme, research is performed with Delft University of Technology on the interaction between iron and phosphate. One project focuses on the recovery of vivianite from sewage sludge and a second on phosphate adsorption on iron. Both approaches have now reached pilot scale. Other research themes at Wetsus also relate with phosphate recovery. For instance calcium phosphate recovery from cow manure is a topic in the Soil and Water theme and electrochemical calcium phosphate recovery is a topic in the Resource Recovery theme. These last projects are performed in collaboration with Wageningen University and Research.