Overview
ROWP Zalau serves approximately 64,581 people in Zalău, Romania. The plant operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
ROWP Zalau is a municipal wastewater treatment plant serving the city of Zalău in Sălaj County, Romania. With a population equivalent of around 64,581, it is classified as a medium agglomeration under EU regulations. The plant is situated inland, approximately 47. 228°N, 23. 026°E, and plays a key role in managing the city's wastewater. As a Romanian facility, ROWP Zalau is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary biological treatment for agglomerations between 10,000 and 150,000 population equivalent. The regulatory framework ensures that appropriate treatment standards are met to protect the environment. The treated effluent from ROWP Zalau 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's operation helps safeguard the water quality of the Someș River basin, supporting aquatic life and downstream ecosystems.
Environmental context
ROWP Zalau discharges into the Someș River basin, which flows into the Tisza River, a major tributary of the Danube. The Danube then empties into the Black Sea. The Someș River supports diverse aquatic life and is an important ecological corridor in northwestern Romania. The plant's treatment helps maintain water quality in this transboundary river system, reducing nutrient and pollutant loads that could impact downstream habitats.
Frequently asked questions
ROWP Zalau is located in Zalău, Sălaj County, Romania, near Hotel Transilvania on Bulevardul Mihai Viteazul.
ROWP Zalau serves approximately 64,581 people, classifying it as a medium agglomeration under EU regulations.
The treated effluent from ROWP Zalau is discharged into local watercourses that flow into the Someș River, a tributary of the Tisza River, which eventually reaches the Danube and the Black Sea.
As a Romanian plant, ROWP Zalau operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of its size.
Under the EU UWWTD, plants serving between 10,000 and 150,000 population equivalent in sensitive areas typically require tertiary treatment, while secondary treatment is the minimum standard. Romania has designated many water bodies as sensitive, so advanced treatment may be expected.
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