UWWTP Dolni chiflik, Dolni Chiflik

Overview

UWWTP Dolni chiflik is a secondary treatment plant serving approximately 5,181 people in Dolni Chiflik, Bulgaria. It discharges treated wastewater into the local watershed near the Black Sea coast.

UWWTP Dolni chiflik is a municipal wastewater treatment plant located in Dolni Chiflik, Varna Province, Bulgaria. The plant serves a population of around 5,181, classifying it as a small agglomeration under Bulgarian and EU regulations. It is situated near the Black Sea coast, within 50 km of the coastline, which places it in a sensitive environmental zone. The plant provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. Its designed capacity is 6,476 m³/day, with a current discharge volume of 286.71 m³/day, indicating significant spare capacity. The plant operates under Bulgaria's national implementation of the EU directive, which mandates appropriate treatment to protect receiving waters. The treated effluent is discharged into a local watercourse that ultimately drains into the Black Sea. The Black Sea is a semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. The plant's secondary treatment helps reduce organic load and nutrients, supporting the ecological health of downstream aquatic habitats and the coastal marine environment.

Environmental context

The plant discharges into a local river system that flows into the Black Sea, a semi-enclosed sea with high ecological sensitivity due to limited water exchange and vulnerability to eutrophication. The surrounding watershed includes agricultural and forested areas, and the coastal zone supports diverse aquatic life, including migratory fish species. Effective wastewater treatment is crucial to prevent nutrient over-enrichment and maintain water quality in the downstream marine environment.

Frequently asked questions

UWWTP Dolni chiflik is located in the town of Dolni Chiflik, Varna Province, Bulgaria. It serves the local municipality and is situated near the Black Sea coast.

The plant serves a population of approximately 5,181 people, classifying it as a small agglomeration under EU wastewater treatment regulations.

The plant discharges treated effluent into a local watercourse that flows into the Black Sea. The discharge is regulated under Bulgarian environmental law and the EU Urban Waste Water Treatment Directive.

The plant protects the local river system that drains into the Black Sea. By providing secondary treatment, it reduces organic and nutrient pollution, safeguarding downstream aquatic ecosystems and the coastal marine environment.

As a plant serving a small agglomeration in Bulgaria, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). The directive requires secondary treatment for freshwater discharges from agglomerations of this size, which the plant provides.