Overview
Leomil wastewater treatment plant serves the town of Leomil in Moimenta da Beira, Viseu, Portugal. It provides secondary treatment for a population of 3,300 and has a designed capacity of 3,300 m³/day.
The Leomil wastewater treatment plant is located in Beira Valente, Leomil, within the municipality of Moimenta da Beira, Viseu District, Portugal. It serves a population of approximately 3,300 residents, classifying it as a small agglomeration under Portuguese and EU wastewater regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland freshwater discharges from agglomerations of this size. The designed capacity is 3,300 m³/day, and the average daily discharge volume is 550.21 m³, indicating a utilization rate well below capacity. The treated effluent is discharged into a local watercourse within the Douro River basin, which ultimately flows into the Atlantic Ocean near Porto. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from untreated sewage pollution.
Environmental context
The Leomil WWTP discharges into a tributary of the Douro River, one of the Iberian Peninsula's major rivers. The Douro basin supports diverse aquatic life and is an important migratory corridor for fish species. The plant's secondary treatment helps reduce organic load and nutrient pollution, safeguarding water quality in the downstream river and the Atlantic coastal zone.
Frequently asked questions
The Leomil WWTP is located in Beira Valente, Leomil, in the municipality of Moimenta da Beira, Viseu District, Portugal.
The plant serves approximately 3,300 residents, classifying it as a small agglomeration under EU wastewater directives.
The treated effluent is discharged into a local watercourse within the Douro River basin, which flows into the Atlantic Ocean.
The plant provides secondary treatment, meeting the EU Urban Waste Water Treatment Directive's minimum requirement for inland discharges from agglomerations of this size.
As a Portuguese plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for freshwater discharges from agglomerations over 2,000 population equivalent.
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