World Bank2021-09-092021-09-092021-09-02https://hdl.handle.net/10986/36244This case study is part of a series prepared by the World Bank’s Water Global Practice to highlight existing experiences in the water sector. The purpose of the series is to showcase one or more of the elements that can contribute toward a Water in Circular Economy and Resilience (WICER) system. This case focuses on the experience of Portugal.CC BY 3.0 IGOWICERCIRCULAR ECONOMYURBAN UTILITIESREUSEWASTEWATER TREATMENTSLUDGEReportWorld Bank10.1596/36244