Dear Colleagues,

On a global scale, the water path is described by the hydrological cycle, which includes the phenomena of condensation, precipitation, surface and underground runoff and evaporation. In urban environments, on a local scale, the water path is described as an urban water cycle. By 2050, more than 70% of the world's population is expected to live in urban areas. Therefore, new challenging tasks await both researchers and managers of the urban water cycle, both as regards the forecast of the demand for drinking water and the management of wastewater. These challenges must be faced in full consideration of a totally organic and sustainable development approach.

Water demand is the driving force behind the dynamics of a water distribution system (WDS) and its correct characterization or the ability to forecast it could be of help for decision makers in WDS design/management analysis.

Moreover, for sustainable wastewater management, it is essential to evaluate the possibility of reusing the water resource; it is important to consider that the wastewater contains mineral nutrients and organic matter that represent valuable resources in agriculture. The organic matter is also a possible source for energy production.

The Special Issue of Sustainability “Sustainable wastewater management and water demand analysis” aims to cover recent advances related to the urban water cycle addressing the following topics:

-Water demand modelling and probabilistic analysis by means of theoretical approaches or field data;

- Water demand forecasting by means of classical or evolutionary approaches;

- Systems for the reuse of wastewater;

- Sustainable wastewater treatment systems;

- Advanced technologies to obtain energy and fertilizers from wastewater treatments.

Further related topics may be proposed by researchers interested in contributing to the Special Issue.

Prof. Dr. Francesco Granata
Dr. Carla Tricarico
Dr. Fabio Di Nunno
Guest Editors

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• water distribution systems
• residential water demand
• probabilistic analysis
• peak consumption
• water demand forecasting
• data driven analysis
• wastewater reuse
• sustainable wastewater treatment
• energy from wastewater
• wastewater hydraulics