Reuse of Wastewater and Hydrogeneration: Sustainable Land Division Project

The present case study - Sustainable Cerrado Subdivision Project in Arouca (Portugal) - proposes the implementation of a design solution that promotes ‘sustainable neighborhoods’, expanding the concept of ‘sustainable homes’. This type of project results from the application of established construction methodologies and innovative solutions, aiming to meet society’s needs with the least possible mobilization of resources (natural, energy, and financial), considering water and energy efficiency as central elements. More specifically, the goal is to reduce the inflows into public wastewater and stormwater drainage systems by changing the consumption habits of the population and collecting rainwater in impermeable areas, as well as treating greywater for non-potable reuse. In water supply systems, there is potential for energy production through microturbines that can harness the energy required for pressure control - hydrogeneration.