Overview
DEPURATORE LOCALITA VENARELLA is an advanced wastewater treatment plant serving Piansano, Lazio, Italy. It treats wastewater for approximately 2,262 residents with a designed capacity of 2,500 cubic meters per day.
DEPURATORE LOCALITA VENARELLA is an advanced wastewater treatment facility located in Piansano, a municipality in the province of Viterbo, Lazio, Italy. The plant serves a population of approximately 2,262 residents, reflecting the scale of a small agglomeration under Italian and EU regulatory frameworks. Its location along the Strada provinciale Piansanese places it within the rural landscape of northern Lazio. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,500 cubic meters per day and a reported discharge volume of 447.80 cubic meters, the facility operates well within its capacity. As an advanced treatment plant, it likely incorporates nutrient removal or other tertiary processes to protect sensitive receiving waters. The treated effluent is discharged into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Marta River or other nearby watercourses. The plant plays a key role in safeguarding the water quality of the region's rivers and coastal environment, supporting both ecological health and downstream uses such as agriculture and recreation.
Environmental context
The plant discharges into the local drainage network that flows toward the Tyrrhenian Sea, likely via the Marta River or tributaries of the Fiora River. The area is characterized by volcanic landscapes and agricultural land use, with downstream waters supporting diverse aquatic life and serving as an important corridor for migratory fish. The advanced treatment helps minimize nutrient loading, which is critical for preventing eutrophication in the coastal zone.
Frequently asked questions
The plant is located on Strada provinciale Piansanese in the Marinello area of Piansano, in the province of Viterbo, Lazio, Italy.
The plant serves approximately 2,262 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the local drainage network, which flows toward the Tyrrhenian Sea via rivers such as the Marta or Fiora.
The plant provides advanced treatment, which includes nutrient removal or other tertiary processes beyond secondary treatment, in line with EU standards for sensitive areas.
Under the EU UWWTD, agglomerations above 2,000 population equivalent require secondary treatment. As an advanced treatment plant, DEPURATORE LOCALITA VENARELLA exceeds this requirement, likely due to the sensitivity of the receiving water body.
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