Overview
ARRONAMENDI wastewater treatment plant serves Deba, Gipuzkoa, in the Basque Country, Spain. It serves approximately 7,000 people and is located within 50 km of the coast.
ARRONAMENDI is a wastewater treatment plant located in the Itsaspe neighborhood of Deba, a town in the Debabarrena region of Gipuzkoa, Basque Country, Spain. The plant serves a population of approximately 7,000 people, placing it in the category of a small to medium agglomeration under European Union classification. As a Spanish facility, ARRONAMENDI operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into coastal waters. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a modest scale appropriate for the local population. The treated effluent from ARRONAMENDI ultimately discharges into the Bay of Biscay via the Deba River or nearby coastal waters. The Basque coastal region supports diverse marine life and is an important area for fisheries and tourism. Proper treatment helps protect the sensitive coastal ecosystem from nutrient pollution and pathogens.
Environmental context
The plant discharges into the Deba River, which flows northward through the Basque Country and empties into the Bay of Biscay (Atlantic Ocean). The coastal waters of the Bay of Biscay are ecologically significant, supporting a variety of fish, seabirds, and marine mammals. The region's steep terrain and high rainfall can lead to rapid runoff, making effective wastewater treatment crucial for preventing eutrophication and maintaining water quality in the nearshore environment.
Frequently asked questions
The ARRONAMENDI plant is located in the Itsaspe neighborhood of Deba, in the Debabarrena region of Gipuzkoa, Basque Country, Spain.
The plant serves approximately 7,000 people, classifying it as a small to medium agglomeration under EU standards.
The treated effluent is discharged into the Deba River, which flows into the Bay of Biscay, a coastal area of the Atlantic Ocean.
As a Spanish plant, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for discharges into coastal waters for agglomerations of this size.
For small to medium agglomerations in Spain, secondary treatment (biological treatment) is standard, often with nutrient removal if discharging into sensitive areas.
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