Overview
TP 741 of Saarijarven kt is an advanced wastewater treatment plant in Saarijärvi, Keski-Suomi, Finland, serving approximately 5,000 people. It discharges treated wastewater into local water bodies.
TP 741 of Saarijarven kt is a wastewater treatment facility located in Saarijärvi, within the Keski-Suomi region of Finland. The plant serves a population of about 5,000 residents, making it a medium-sized agglomeration under Finnish and EU classifications. Its location in central Finland places it in a region characterized by numerous lakes and rivers, typical of the Finnish lake district. 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, such as nitrogen and phosphorus reduction, which is critical for protecting sensitive freshwater ecosystems common in Finland. The plant operates under Finland's national implementation of the directive, overseen by regional environmental authorities. The treated effluent is discharged into local water bodies, likely tributaries of the Kymijoki river basin or the Saarijärvi lake system, which ultimately drain into the Gulf of Finland via the Baltic Sea. The advanced treatment helps safeguard downstream aquatic habitats, including those supporting fish species like perch and pike, and contributes to the overall health of the Baltic Sea, which is highly sensitive to nutrient pollution.
Environmental context
The plant discharges into local water bodies within the Kymijoki river basin, which flows into the Gulf of Finland, part of the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it highly vulnerable to eutrophication from nutrient inputs. Advanced treatment at this plant reduces phosphorus and nitrogen loads, helping to protect downstream lakes and rivers that support diverse aquatic life, including salmonid fish and migratory bird populations.
Frequently asked questions
The plant is located in Saarijärvi, Keski-Suomi, Finland, at Myllymäentie in the Hietalahti area.
The plant serves approximately 5,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater is discharged into local water bodies, likely within the Kymijoki river basin, which flows into the Gulf of Finland and the Baltic Sea.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, in line with EU requirements for sensitive areas.
The plant operates under Finland's implementation of the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations over 2,000 people and advanced treatment in sensitive areas.
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