ROWP Jibou Wastewater Treatment Plant - Jibou, Sălaj, Romania

ROWP Jibou is a municipal wastewater treatment plant located on Strada Ronei in Jibou, Sălaj County, Romania. The plant serves a population of 8,113 and is classified as a medium agglomeration under Romanian and EU regulations. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 13,000 m³/day and an average discharge volume of 893.32 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that eventually drain into the Someș River, a tributary of the Tisza River, which flows into the Danube and ultimately the Black Sea. The plant plays a key role in protecting the Someș catchment from organic pollution and nutrient loading.

The plant discharges into the Someș River basin, which flows through northwestern Romania into Hungary, joining the Tisza River. The Tisza is a major tributary of the Danube, which empties into the Black Sea. The Someș River supports diverse aquatic life and is used for irrigation and recreation. Secondary treatment reduces organic load and suspended solids, helping to maintain water quality in this transboundary river system.