ROWP Aghiresu Wastewater Treatment Plant, Aghireșu-Fabrici, Romania

ROWP Aghiresu is a municipal wastewater treatment plant located in Aghireșu-Fabrici, Cluj County, Romania. The facility serves a population of approximately 1,590 people, classifying it as a small agglomeration under Romanian and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity of 3,600 m³/day indicates the plant is sized to accommodate future growth or seasonal variations, with current discharge volume at 110.78 m³/day. The treated effluent is discharged into local watercourses that drain into the Someș River basin, ultimately reaching the Tisza River and the Danube River before entering the Black Sea. The plant plays a key role in protecting the Someș River and downstream ecosystems from untreated wastewater pollution.

The plant discharges into the Someș River basin, which flows into the Tisza River and then the Danube River, eventually reaching the Black Sea. This watershed supports diverse aquatic life and is an important ecological corridor in the Carpathian region. The secondary treatment provided helps reduce organic load and suspended solids, protecting downstream water quality and biodiversity.