A two-step optimisation approach for integrated water resources managementA two-step optimisation approach for integrated water resources management Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-11-172012enThis paper addresses the integrated water resources management for water deficient areas, considering desalinated seawater, wastewater and reclaimed water. Adapted from our previous work (Liu et al., 2011), a two-step optimisation approach is proposed. In step 1, an approximation model with an estimation on the pumping costs is solved to determine the plant locations. Then a reduced full model is solved with determined locations in step 2. At last, The proposed approach is applied to a case study of Santorini island, and shows better performance than our previous model.http://creativecommons.org/licenses/by/4.0/Computer Aided Chemical Engineering3096-100 Liu Songsong Gikas Petros Γκικας Πετρος Papageorgiou Lazaros G. Elsevier Water resources management Optimisation MILP Two-step approach