Overview
ROWP SC Compania de apa SA Buzau sector Buzau serves approximately 136,000 people in Vadu Pașii, Romania. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations over 10,000 populat
ROWP SC Compania de apa SA Buzau sector Buzau is a municipal wastewater treatment plant located in Vadu Pașii, Buzău County, Romania. Serving an estimated population of 135,803, it is classified as a large agglomeration under EU regulations. The plant is part of the regional water utility infrastructure managed by Compania de Apa SA Buzau. As a facility serving over 100,000 people, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary biological treatment as a minimum. For large agglomerations discharging into sensitive areas, tertiary treatment may be required to reduce nutrients such as nitrogen and phosphorus. The regulatory framework ensures a high standard of effluent quality. The treated wastewater is discharged into the Buzău River, which flows into the Siret River, a major tributary of the Danube. The Danube ultimately reaches the Black Sea, an ecologically sensitive semi-enclosed sea. The plant plays a key role in protecting the Buzău River and downstream water bodies from pollution, supporting aquatic life and water quality in the region.
Environmental context
The plant discharges into the Buzău River, which flows into the Siret River and then the Danube, before reaching the Black Sea. The Black Sea is a semi-enclosed sea with limited water exchange, making it vulnerable to nutrient pollution from agricultural and urban runoff. The plant's treatment helps reduce the load of organic matter and nutrients entering this sensitive ecosystem, supporting biodiversity and preventing eutrophication in downstream waters.
Frequently asked questions
The plant is located on DC15 in Vadu Pașii, Buzău County, Romania, near the city of Buzău.
The plant serves approximately 135,803 people, classifying it as a large agglomeration under EU regulations.
The treated wastewater is discharged into the Buzău River, which flows into the Siret River and then the Danube, ultimately reaching the Black Sea.
As a Romanian plant serving over 10,000 population equivalent, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and, for sensitive areas, tertiary treatment to reduce nutrients.
Under the EU Urban Waste Water Treatment Directive, plants serving over 10,000 population equivalent are required to have at least secondary biological treatment. For large agglomerations in sensitive catchments, additional nutrient removal (tertiary treatment) is often required.
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