Feasibility, seasonality and reliability of rainwater harvesting in buildings of a university in Campina Grande, Paraíba

ABSTRACT Urban areas in semi-arid regions are under chronic water stress. In this scenario, expanding supply with decentralized sources that collaborate Water-Sensitive Design (WSUD) may be relevant, such as rainwater harvesting (RWH) systems. respect, study aimed to analyze the potential for use of public buildings Brazilian region, integrating three aspects: environmental and economic feasibility, seasonality, reliability. The results provide substantial evidence on benefits using rainwater, both from an point view. This can significantly reduce annual consumption supply, which would demand bodies. It has also been found there is considerable variation potable savings throughout year; systems, however, still