Gniewino Wastewater Treatment Plant: Serving Gniewinko, Poland

The Gniewino wastewater treatment plant is located in Gniewinko, a village in the Pomeranian Voivodeship of northern Poland. It serves a population of about 10,266 people, classifying it as a medium-sized agglomeration under EU standards. The plant is situated near the Baltic Sea coast, within 50 km of the shoreline, and plays a key role in protecting the region's water resources. As a Polish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the discharge enters sensitive areas, such as coastal zones. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a scale appropriate for its population served. The treated effluent from the plant likely discharges into local rivers or streams that flow into the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. Proper wastewater treatment at Gniewino helps reduce the load of nitrogen and phosphorus, supporting the health of coastal ecosystems and preventing eutrophication.

The plant's discharge ultimately reaches the Baltic Sea, a brackish water body with unique ecological characteristics. The Baltic is highly sensitive to nutrient inputs, which can cause algal blooms and oxygen depletion. The plant's location in a coastal watershed means that treated wastewater must meet stringent standards to protect marine life and recreational waters. The local area includes small rivers and streams that drain into the Baltic, supporting diverse aquatic habitats.