STRUER Wastewater Treatment Plant, Struer, Denmark - Coastal EU Facility

STRUER wastewater treatment plant is located in Struer, a town in the Region Midtjylland of Denmark. The plant serves a population equivalent of approximately 34,000, classifying it as a medium agglomeration under EU regulations. Its coastal proximity places it in a sensitive area requiring advanced treatment to protect marine waters. As a Danish facility, STRUER operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. For discharges into sensitive coastal areas, tertiary treatment may be required to reduce nutrients and prevent eutrophication. The plant discharges treated wastewater into the Limfjord, a shallow sound connecting the North Sea and the Kattegat. This water body supports diverse marine life, including fish, shellfish, and migratory birds. Effective nutrient removal is critical to prevent algal blooms and maintain water quality in this ecologically sensitive coastal ecosystem.

The treated effluent from STRUER plant flows into the Limfjord, a coastal water body that connects the North Sea to the Kattegat. This area supports a rich marine ecosystem, including important fisheries and bird habitats. Nutrient loading from wastewater can contribute to eutrophication, so advanced treatment is essential to protect the fjord's ecological balance and recreational value.