Raseiniu aglomeracija Wastewater Treatment Plant, Raseiniai, Lithuania

Raseiniu aglomeracija is a wastewater treatment plant located in Raseiniai, Kauno apskritis, Lithuania. It serves a population of approximately 9,800 people, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated inland, away from coastal areas, and its treated effluent is discharged into local water bodies. As a facility within the European Union, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The regulatory framework ensures that the plant meets required standards for organic matter and nutrient removal. The plant's design capacity and operational status are consistent with typical municipal infrastructure in the region. The plant's discharge ultimately reaches the Nemunas River basin, which flows into the Curonian Lagoon and then the Baltic Sea. This watershed is ecologically sensitive, supporting diverse aquatic life and serving as an important migratory corridor for fish. The plant's performance is critical for protecting downstream water quality and the broader Baltic Sea ecosystem.

The plant discharges into the Nemunas River basin, which drains into the Curonian Lagoon and eventually the Baltic Sea. This watershed supports diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. The Baltic Sea is a semi-enclosed, brackish sea sensitive to nutrient pollution, making effective wastewater treatment essential for preventing eutrophication and maintaining ecological balance.