Integrated management of stormwater has become a priority in European environmental policies due to the increase in runoff volumes and the limited availability of water resources. For this reason, urban runoff waters are considered a strategic resource to be valued and recovered.
Climate change, with the intensification of rainfall events, and growing urbanization with soil sealing, have led to an increase in surface runoff and a reduction in evapotranspiration and groundwater recharge.
The traditional approach, based solely on the rapid removal of runoff and the expansion of drainage networks (white sewers), has proven inadequate in addressing these challenges.
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