Pabrades aglomeracija Wastewater Treatment Plant, Mečanka, Lithuania

Pabrades aglomeracija is a wastewater treatment plant located in Mečanka, within the Pabradė eldership of Švenčionys district, Vilniaus apskritis, Lithuania. The plant serves a population of 1,150 and is part of the country's municipal wastewater infrastructure. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,600 m³/day, the plant operates well below its capacity, treating an average of 816.58 m³/day. The treated wastewater is discharged into the local water system, which ultimately drains into the Žeimena River, a tributary of the Neris River, and then into the Nemunas River basin before reaching the Baltic Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the region.

The plant discharges into the Žeimena River catchment, part of the larger Nemunas River basin that flows into the Baltic Sea. This watershed supports diverse aquatic life and is ecologically sensitive, particularly due to its role in maintaining water quality in downstream habitats. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in the Baltic Sea.