Overview
TP 142 of Ilomantsin kk is an advanced wastewater treatment plant in Ilomantsi, Pohjois-Karjala, Finland, serving approximately 5,000 people. It discharges treated wastewater into local water bodies.
TP 142 of Ilomantsin kk is a municipal wastewater treatment plant located in Ilomantsi, a municipality in the Pohjois-Karjala region of eastern Finland. The plant serves a population of about 5,000 residents, reflecting the scale of a small agglomeration under Finnish and EU classifications. Its location in a sparsely populated, lake-rich region shapes its operational and environmental context. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal, particularly phosphorus and nitrogen, which is critical in Finland due to the sensitivity of its inland waters to eutrophication. The treated effluent is released into the local watershed, which ultimately drains into the Baltic Sea via the Vuoksi River basin. The region's numerous lakes and rivers are ecologically sensitive, supporting diverse aquatic life and serving as important habitats for fish and migratory birds. The plant's advanced treatment helps protect these water bodies from nutrient pollution, aligning with Finland's commitment to reducing Baltic Sea eutrophication.
Environmental context
The plant discharges into the local watershed within the Vuoksi River basin, which flows through a chain of lakes in eastern Finland before reaching Lake Ladoga in Russia and eventually the Baltic Sea. This region is characterized by oligotrophic lakes and peatland forests, making it sensitive to nutrient loading. Advanced treatment at the plant reduces phosphorus and nitrogen inputs, helping to prevent algal blooms and maintain water quality for aquatic ecosystems and downstream communities.
Frequently asked questions
The plant is located in Ilomantsi, a municipality in the Pohjois-Karjala region of eastern Finland, near the border with Russia.
The plant serves approximately 5,000 residents, classifying it as a small agglomeration under EU wastewater treatment regulations.
The plant provides advanced treatment, which includes nutrient removal (phosphorus and nitrogen) beyond secondary treatment, to protect sensitive inland waters.
Under the EU UWWTD (91/271/EEC), agglomerations of 5,000 population equivalent require at least secondary treatment. The plant's advanced treatment exceeds this standard, reflecting Finland's focus on reducing nutrient loads to the Baltic Sea.
The plant discharges into the Vuoksi River basin, which flows through a series of lakes to Lake Ladoga and the Baltic Sea. Its advanced treatment helps prevent eutrophication in these sensitive aquatic ecosystems.
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