Overview
UWWTP Montana serves the city of Montana, Bulgaria, treating wastewater for approximately 54,000 people. The plant operates under Bulgaria's implementation of the EU Urban Waste Water Treatment Directive.
UWWTP Montana is a municipal wastewater treatment facility located in Montana, northwestern Bulgaria. It serves a population of around 54,000, placing it in the medium agglomeration category under EU regulations. As a Bulgarian plant, UWWTP Montana is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant discharges treated effluent into the Ogosta River, a tributary of the Danube. The Danube River Basin is ecologically significant, supporting diverse aquatic life and serving as a major migratory corridor. The plant's operations help protect downstream water quality in the Danube and ultimately the Black Sea.
Environmental context
The plant's treated effluent flows into the Ogosta River, which joins the Danube River near the Bulgarian-Romanian border. The Danube is a major European waterway that drains into the Black Sea, supporting a rich ecosystem including numerous fish species and migratory birds. The region's watershed is important for both local agriculture and biodiversity.
Frequently asked questions
UWWTP Montana is located in the city of Montana, in the Montana Province of northwestern Bulgaria.
The plant serves approximately 54,143 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the Ogosta River, a tributary of the Danube River, which ultimately flows into the Black Sea.
As a Bulgarian plant serving over 50,000 people, UWWTP Montana is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). If the receiving waters are sensitive, tertiary treatment may be required.
For agglomerations of this size in Bulgaria, secondary treatment is standard under the EU directive. This typically involves biological treatment to reduce organic matter and suspended solids before discharge.
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