ROWP Consiliul Local JOSENI Wastewater Treatment Plant, Joseni, Harghita, Romania

ROWP Consiliul Local JOSENI is a municipal wastewater treatment plant located in Joseni, Harghita County, Romania. The facility serves a population of approximately 5,000 residents and operates with a designed capacity of 6,600 cubic meters per day. Its discharge volume is reported at 598.32 cubic meters, indicating current operational levels. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids before discharge. The plant's capacity utilization suggests it is operating well below its design capacity, allowing for future growth or seasonal variations. The treated effluent is discharged into local watercourses that eventually drain into the Olt River basin, which flows southward to the Danube River and ultimately into the Black Sea. The plant plays a key role in protecting the local watershed from untreated sewage, supporting water quality in the region's rivers and downstream ecosystems.

The plant discharges into the Olt River basin, which flows through the Carpathian Mountains and into the Danube River, eventually reaching the Black Sea. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. The secondary treatment helps reduce nutrient and organic pollution, protecting the ecological health of the river system.