ETAR de Tabaiba Wastewater Treatment Plant, El Rosario, Tenerife

ETAR de Tabaiba is a wastewater treatment plant located in El Rosario, on the island of Tenerife in the Canary Islands, Spain. It serves a population of 4,611 and has a designed capacity of 10,000 m³/day, with an average discharge volume of 835.73 m³/day. The plant is situated along the coast, within 10 km of the Atlantic Ocean. The plant provides primary treatment, which involves physical processes such as sedimentation to remove solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are generally required to have secondary treatment. However, primary treatment may be acceptable in certain coastal areas with favorable dispersion conditions, as is the case here. The treated effluent is discharged into the Atlantic Ocean, which surrounds the island of Tenerife. The coastal waters support diverse marine life, including seagrass meadows and fish populations. The plant's location in a tourist-heavy region underscores the importance of proper wastewater management to protect marine ecosystems and public health.

The plant discharges into the Atlantic Ocean off the coast of Tenerife, part of the Canary Islands archipelago. The surrounding marine environment supports diverse ecosystems, including seagrass beds and coral communities, which are sensitive to nutrient pollution. The coastal waters are also important for tourism and fisheries, making effective wastewater treatment critical for maintaining water quality and ecological balance.