COV Komarno Wastewater Treatment Plant, Komárno, Slovakia

COV Komarno is a municipal wastewater treatment plant located in Komárno, Slovakia, within the Nitriansky kraj region. The plant serves a population of approximately 26,467 people, classifying it as a medium-sized agglomeration under EU standards. As a Slovak facility, the plant operates under 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 local water system, which ultimately drains into the Danube River basin. The Danube is a major European waterway that flows into the Black Sea, supporting diverse aquatic ecosystems and providing water for millions of people.

The treated effluent from COV Komarno enters the local water network, which is part of the Danube River basin. The Danube flows southeast through Central and Eastern Europe before emptying into the Black Sea. This watershed supports a wide range of aquatic life, including fish species such as sturgeon and carp, and provides critical habitat for migratory birds. The ecological health of the Danube is influenced by nutrient loads from municipal and agricultural sources, making effective wastewater treatment essential for maintaining water quality.