Overview
ROWP Sarmasag is a secondary wastewater treatment plant in Moiad, Romania, serving approximately 2,753 people. It discharges 261.61 thousand m³/year of treated effluent.
ROWP Sarmasag is a municipal wastewater treatment facility located in Moiad, a locality within Șărmășag commune, Sălaj County, Romania. The plant serves a population of approximately 2,753, classifying it as a small agglomeration under Romanian and EU regulations. The plant provides secondary biological 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. Its designed capacity is 5,011 m³/day, with an actual discharge volume of 261.61 thousand m³/year, indicating operational headroom. 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 flowing into the Black Sea. The plant plays a key role in protecting the Someș catchment from nutrient and organic pollution, supporting aquatic biodiversity and downstream water quality.
Environmental context
The plant's discharge enters the Someș River basin, a tributary of the Tisza River, which flows into the Danube and then the Black Sea. The Someș River supports diverse aquatic life and is used for irrigation and recreation. The plant's secondary treatment helps reduce biochemical oxygen demand and suspended solids, mitigating eutrophication risks in downstream lakes and the Danube Delta ecosystem.
Frequently asked questions
ROWP Sarmasag is located in Moiad, a village within Șărmășag commune, Sălaj County, Romania, near DN1F road.
The plant serves approximately 2,753 people, classifying it as a small agglomeration under EU definitions.
The plant discharges treated effluent into local watercourses that flow into the Someș River basin, part of the Tisza-Danube system leading to the Black Sea.
The plant provides secondary biological treatment, meeting the minimum EU Urban Waste Water Treatment Directive requirement for freshwater discharges from small agglomerations.
As a Romanian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into national law. Secondary treatment is mandatory for agglomerations over 2,000 population equivalent discharging to freshwater.
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