Itzehoe Wastewater Treatment Plant | Schleswig-Holstein, Germany

The Itzehoe wastewater treatment plant is located in the town of Itzehoe, in the state of Schleswig-Holstein, Germany. It serves a population of approximately 41,200 people, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated near the Stör river, a tributary of the Elbe, and lies within 50 km of the North Sea coast. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum, with tertiary treatment mandated if the receiving waters are designated as sensitive areas. The plant's designed capacity is 1.00 (likely in million cubic meters per year or similar unit), indicating a facility sized to handle the local wastewater load. The treated effluent from the Itzehoe plant is discharged into the Stör river, which flows into the Elbe estuary and eventually the North Sea. This water body supports diverse aquatic life and is an important migratory corridor for fish species. The plant plays a key role in protecting the local watershed and downstream marine environment from nutrient pollution and pathogens.

The Itzehoe plant discharges into the Stör river, a tributary of the Elbe, which flows into the North Sea. The Elbe estuary is an ecologically sensitive area that supports diverse aquatic life and serves as a critical habitat for migratory fish. The plant's treatment helps reduce nutrient loads that could contribute to eutrophication in the coastal waters of the North Sea.