Overview
Impianto di Depurazione di Gaggi is a primary treatment plant serving 3,500 people in Castiglione di Sicilia, Sicily, Italy. It discharges 692.88 m³/day of treated wastewater near the coast.
Impianto di Depurazione di Gaggi is a wastewater treatment facility located in Castiglione di Sicilia, a town in the province of Catania, Sicily, Italy. The plant serves a population of approximately 3,500 residents, classifying it as a small agglomeration under Italian and EU regulations. The plant provides primary treatment, which involves physical processes like sedimentation to remove suspended solids. With a designed capacity of 3,500 m³/day and a discharge volume of 692.88 m³/day, it operates well below its capacity. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), primary treatment is the minimum required for discharges into coastal waters, but secondary treatment is typically mandated for agglomerations over 2,000 people unless the receiving waters are less sensitive. The treated effluent is discharged into the local environment, likely into a watercourse that flows toward the Ionian Sea, given the plant's proximity to the coast. The discharge may affect coastal water quality and marine ecosystems, making proper treatment essential for protecting biodiversity and recreational waters.
Environmental context
The plant discharges into a local watercourse that drains into the Ionian Sea, a basin of the Mediterranean Sea. The coastal area supports diverse marine life, including seagrass meadows and fish nurseries, which are sensitive to nutrient pollution and organic loads. Primary treatment alone may not sufficiently reduce pollutants, posing risks to downstream ecological health.
Frequently asked questions
The plant is located in Castiglione di Sicilia, in the province of Catania, Sicily, Italy.
The plant serves approximately 3,500 residents, making it a small agglomeration under EU classification.
The plant discharges treated wastewater into a local watercourse that flows toward the Ionian Sea, a coastal environment.
The plant provides primary treatment, which involves physical removal of solids. Under the EU Urban Waste Water Treatment Directive, primary treatment is the minimum for coastal discharges, but secondary treatment is typically required for agglomerations over 2,000 people unless the area is designated as less sensitive.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into Italian law. For small agglomerations like this, the directive mandates appropriate treatment to protect receiving waters. Italy's regulatory framework also includes regional oversight from the Sicilian environmental authorities.
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