Overview
UWWTP Kazanlak serves the city of Kazanlak, Bulgaria, treating wastewater for approximately 71,607 people. The plant operates under the EU Urban Waste Water Treatment Directive.
UWWTP Kazanlak is a municipal wastewater treatment plant located near Ovoshtnik, serving the city of Kazanlak in Stara Zagora Province, Bulgaria. It handles wastewater from a population of around 71,607, placing it in the medium-to-large agglomeration category under EU classification. As a Bulgarian facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Bulgaria has transposed the directive into national law, and the plant is expected to meet the relevant effluent standards for biological oxygen demand and suspended solids. The treated effluent is discharged into the local watershed, which ultimately drains into the Black Sea via the Tundzha River and Maritsa River systems. The region supports diverse aquatic life and agricultural activities downstream, making proper treatment essential for environmental protection.
Environmental context
The plant discharges into the Tundzha River basin, a tributary of the Maritsa River, which flows into the Aegean Sea. The downstream environment includes agricultural areas and ecologically sensitive zones that support fish populations and migratory birds. Effective treatment helps prevent nutrient pollution and protects water quality in this transboundary river system.
Frequently asked questions
UWWTP Kazanlak is located near Ovoshtnik, serving the city of Kazanlak in Stara Zagora Province, Bulgaria.
The plant serves approximately 71,607 people, classifying it as a medium-to-large agglomeration under EU standards.
The treated effluent is discharged into the local watershed, which drains into the Tundzha River, a tributary of the Maritsa River, ultimately reaching the Aegean Sea.
As a Bulgarian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and effluent standards for agglomerations of this size.
For agglomerations over 10,000 population equivalent, the EU directive requires secondary treatment. Bulgarian plants typically use activated sludge or similar biological processes to meet BOD and suspended solids limits.
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