ROWP Seini Wastewater Treatment Plant, Seini, Maramureș, Romania

ROWP Seini is a municipal wastewater treatment plant located on Strada Victoriei in Seini, Maramureș, Romania. It serves a population of 1,566, classifying it as a small agglomeration under Romanian and EU regulations. The plant provides primary treatment, which involves physical sedimentation to remove settleable solids. As a small agglomeration in Romania, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for discharges into freshwater bodies. The plant's designed capacity is 340 m³/day, with an actual discharge volume of 155.52 m³/day. The treated effluent is discharged into the local watershed, which ultimately drains into the Someș River, a tributary of the Tisza River, and then into the Danube River before reaching the Black Sea. The plant plays a role in protecting the water quality of the Someș River basin, which supports diverse aquatic life and is used for irrigation and recreation downstream.

ROWP Seini discharges into the Someș River basin, which flows into the Tisza River, a major tributary of the Danube River, and eventually reaches the Black Sea. The Someș River supports diverse aquatic ecosystems and is used for agriculture and fishing downstream. The plant's primary treatment reduces suspended solids but provides limited nutrient removal, which is typical for small agglomerations in the region.