TOLOX Wastewater Treatment Plant, Tolox, Andalucía, Spain

TOLOX is a wastewater treatment plant located in Tolox, a town in the Sierra de las Nieves region of Málaga, Andalucía, Spain. The plant serves a population of 5,500 and operates under secondary treatment, which is the standard level required by the EU Urban Waste Water Treatment Directive for agglomerations of this size. The plant's designed capacity is 4,922 m³/day, with an average discharge volume of 996.86 m³/day, indicating it operates well below its capacity. As a secondary treatment facility, TOLOX removes organic matter and suspended solids through biological processes, meeting the effluent quality standards set by Spanish regulations and the EU directive. The plant is located inland, more than 10 km from the coast, and its treated effluent is discharged into local watercourses that eventually drain into the Mediterranean Sea. The surrounding area is part of the Sierra de las Nieves, a mountainous region known for its biodiversity and protected natural landscapes. The plant plays a crucial role in protecting the local watershed and downstream ecosystems. The treated wastewater supports the ecological health of receiving streams, which are part of the Guadalhorce river basin. This basin ultimately flows into the Mediterranean, contributing to the marine environment. The plant's operation helps maintain water quality in a region valued for its natural heritage and tourism.

TOLOX discharges treated wastewater into local streams that are part of the Guadalhorce river basin, which flows into the Mediterranean Sea near Málaga. The receiving water bodies support diverse aquatic life and are important for regional biodiversity, particularly in the Sierra de las Nieves area. The plant's secondary treatment reduces organic pollution and protects downstream ecosystems, including coastal waters that are vital for tourism and fisheries.