Castelo Branco Sul, Castelo Branco

Overview

Castelo Branco Sul is a closed secondary wastewater treatment plant in Castelo Branco, Portugal. It was designed with a capacity of 47,371 m³/day, serving the local urban agglomeration.

Castelo Branco Sul is a wastewater treatment plant located in Castelo Branco, Portugal, along EN 233. The plant was designed to serve the municipal wastewater needs of the city and its surrounding area, with a designed capacity of 47,371 m³/day. It is currently closed, and its operational history reflects the evolving infrastructure of the region. The plant provided secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this scale. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, ensuring compliance with discharge standards before effluent is released into the environment. The treated effluent from Castelo Branco Sul would have been discharged into the local watershed, which ultimately drains into the Tagus River basin. The Tagus River flows westward through Portugal to the Atlantic Ocean near Lisbon. The plant's operation contributed to protecting downstream water quality and aquatic ecosystems in the Tagus basin.

Environmental context

The plant is located inland in the Tagus River basin, which drains into the Atlantic Ocean. The Tagus River supports diverse aquatic life and is an important water resource for agriculture and urban supply. Proper wastewater treatment is essential to prevent nutrient pollution and maintain ecological balance in the river and its estuary.

Frequently asked questions

Castelo Branco Sul is located on EN 233 in Castelo Branco, Portugal, in the central inland region of the country.

The plant had a designed capacity of 47,371 m³ per day, indicating it was built to handle a significant volume of municipal wastewater.

The plant provided secondary treatment, which involves biological processes to reduce organic matter and suspended solids before discharge.

Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving agglomerations of this scale are required to provide at least secondary treatment. Castelo Branco Sul met this standard.

The plant's discharge would have entered the Tagus River basin, which flows to the Atlantic Ocean. Proper treatment helps protect water quality and aquatic ecosystems in the basin.