ROWP SC Aparegio SA TgJiu Wastewater Treatment Plant, Târgu Jiu, Romania

ROWP SC Aparegio SA TgJiu is a municipal wastewater treatment plant located in Târgu Jiu, Romania, serving a population of approximately 72,470 residents. The plant is situated in Gorj County, an inland region in southwestern Romania, and is part of the country's water infrastructure managed under EU environmental standards. As a medium-sized agglomeration serving over 10,000 people, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum. Romanian plants of this scale are also subject to national regulations aligned with EU standards, ensuring compliance with discharge limits for organic matter and nutrients. The treated effluent from the plant is discharged into the Jiu River, a major tributary of the Danube River. The Jiu River flows southward through the Carpathian foothills and eventually joins the Danube, which empties into the Black Sea. This water body supports diverse aquatic life and is an important ecological corridor in the region.

The plant discharges into the Jiu River, which flows into the Danube River and ultimately reaches the Black Sea. The Jiu River basin supports a variety of fish species and riparian habitats, and the downstream Danube Delta is a large wetland ecosystem of international importance. Proper treatment helps protect water quality in this sensitive river network.