UWWTD
The Urban Wastewater Treatment Directive (UWWTD), officially Council Directive 91/271/EEC, is a significant piece of European Union legislation aimed at protecting the environment from the adverse effects of urban wastewater. Adopted in 1991, its primary objective is to ensure that wastewater from urban areas is collected and treated appropriately before being discharged into the environment. The directive sets out minimum standards for wastewater collection and treatment across the EU.
It classifies discharges into different categories based on population equivalents, requiring progressively more stringent treatment for