ROWP Galgau Wastewater Treatment Plant, Gâlgău, Sălaj, Romania

ROWP Galgau is a municipal wastewater treatment plant located in Gâlgău, a commune in Sălaj County, Romania. The plant serves a small population of 600 residents, reflecting its role in a rural community. It operates under Romania's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for wastewater collection and treatment. The plant provides secondary treatment, a biological process that removes organic matter and suspended solids. Its designed capacity is 1,600 m³/day, with an actual discharge volume of 106.27 m³/day, indicating significant spare capacity. As a small agglomeration, the EU directive requires appropriate treatment to protect the environment. The treated effluent is discharged into local streams that flow into the Someș River, part of the Tisza River basin, ultimately reaching the Danube River and the Black Sea. The plant helps protect the Someș River and downstream ecosystems from nutrient pollution and organic loading.

The plant discharges into local tributaries of the Someș River, which flows through northwestern Romania into Hungary, joining the Tisza River. The Tisza then drains into the Danube and finally the Black Sea. The Someș River supports diverse aquatic life and is used for irrigation and recreation. The plant's secondary treatment reduces organic pollutants and nutrients, helping to prevent eutrophication in downstream waters.