Water reuse as a secure pathway to deal with water scarcity Vincenzo Torretta, Ioannis Katsoyiannis, Maria Cristina Collivignarelli, Giorgio Bertanza and Maria Xanthopoulou MATEC Web Conf., 305 (2020) 00090 Published online: 17 January 2020 DOI: 10.1051/matecconf/202030500090