Partners
| Research Centre | Responsible | Expertise |
| Univ. of Santiago de Compostela (USC) | Juan M. Lema Rodicio | Wastewater technology - LCA & ERA |
| Univ. of Cantabria (UC) | Juan Ignacio Tejero Monzón | Wastewater technology |
| Univ. of Barcelona (UB) | Santiago Esplugas Vidal | Postreatment for reuse |
| Univ. of Cádiz (UCA) | Diego Sales Márquez | Sludge minimisation and treatment |
| Univ. of Girona (UdG) | Manel Poch Espallargas | Decision support systems for STP |
| Centre for Studies and Technical Research of Gipuzkoa (CEIT) | Eduardo Ayesa Iturrate | Modelling and Control |
| Univ. of Valencia (UV) | Francesc Hernández Sancho. | Water economy |
| Univ. of Murcia (UM) | Antonio J. García Fernández | Eco-toxicology |
| Wageningen Univ & Research (WUR) | Alfons J. M. Stams | Microbial physiology |
| Tech.Univ. Delft (TUD) | Mark Van Loosdrecht | Development of innovative processes |
| Univ. of Valladolid (UVa) | Fernando Fdez-Polanco | Control of gaseous emissions |
