This dataset supports the research article “Integrating zeolite-based cation exchange and membrane contactors for ammonium recovery as ammonium sulphate: pilot experience from WalNUT project”. The dataset contains raw and processed data underlying all reported results, including ammonium concentrations, mass balances across cation exchange and membrane contactor systems, operational parameters, and agronomic performance indicators from pot and field experiments. These data enable reproducibility of the analyses presented in the article and support further research on nutrient recovery technologies and circular fertiliser production.

H2020-RUR-2020-2 101000752 WALNUT