Overview
Kolonia Poczesna secondary treatment plant serves Twardowice, Poland, treating wastewater for 3,243 people with a design capacity of 4,600 m³/day.
Kolonia Poczesna is a municipal wastewater treatment plant located in Twardowice, within the Silesian Voivodeship of southern Poland. The facility serves a population of approximately 3,243 residents and operates under Poland's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant provides secondary treatment, which is the standard biological treatment required for agglomerations of this size under EU regulations. With a design capacity of 4,600 m³/day and an average daily discharge volume of 462.4 m³, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Vistula River basin, which flows northward to the Baltic Sea. The plant plays a key role in protecting the region's surface waters from nutrient pollution and supporting the ecological health of the downstream aquatic environment.
Environmental context
The plant discharges into the local watershed, which is part of the Vistula River basin. The Vistula flows through central Poland and empties into the Baltic Sea via the Gulf of Gdańsk. The downstream environment includes diverse aquatic habitats that support fish, macroinvertebrates, and migratory bird species. Effective nutrient removal at the plant helps reduce eutrophication risks in the Baltic Sea, a sensitive marine ecosystem.
Frequently asked questions
The plant is located in Twardowice, within the gmina Bobrowniki, powiat będziński, Silesian Voivodeship, Poland.
The plant serves a population of 3,243 people.
The treated effluent is discharged into local watercourses that are part of the Vistula River basin, ultimately flowing to the Baltic Sea.
The plant provides secondary treatment, which is the minimum required under the EU Urban Waste Water Treatment Directive for agglomerations of this size.
As a Polish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent.
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