LANGA Wastewater Treatment Plant, Langå, Denmark

LANGA is a wastewater treatment plant located in Langå, Favrskov Kommune, Region Midtjylland, Denmark. It serves a population of approximately 5,579 people, placing it in the small agglomeration category under EU classification. As a Danish plant, LANGA is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Danish environmental authorities enforce national standards that align with the directive, ensuring appropriate treatment before discharge. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Baltic Sea via the Gudenå River system. This river is Denmark's longest and supports diverse aquatic life, making proper treatment essential for downstream ecological health.

The plant discharges into the Gudenå River basin, which flows through central Jutland and empties into the Kattegat sea area of the Baltic Sea. The Gudenå supports a variety of fish species and provides habitat for migratory birds. Protecting this waterway is important for maintaining regional biodiversity and water quality in the downstream marine environment.