Overview
TP 122 of Hyvinkaan kt is a municipal wastewater treatment plant in Hyvinkää, Uusimaa, Finland, serving approximately 39,000 people. The plant operates under Finland's implementation of the EU Urban Waste Water Treatment Directive.
TP 122 of Hyvinkaan kt is a municipal wastewater treatment facility located in Hyvinkää, within the Uusimaa region of southern Finland. The plant serves a population of around 39,000, classifying it as a medium-sized agglomeration under EU standards. It is situated in the Metsäkalteva district, near Puhdistamontie, and plays a key role in managing the region's wastewater. As a Finnish plant, it operates under the national implementation of 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 discharge enters sensitive areas. The plant's capacity is rated at 1.00 (likely in thousand cubic meters per day or similar units), indicating a designed throughput consistent with its population served. The treated effluent is discharged into local watercourses that ultimately drain 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 sensitive to nutrient pollution. The plant's operations contribute to protecting downstream aquatic ecosystems, including rivers and coastal zones in the Helsinki region.
Environmental context
The plant discharges into the local watershed that drains into the Gulf of Finland, a basin of the Baltic Sea. The Baltic Sea is ecologically sensitive due to its brackish waters and vulnerability to eutrophication from nutrient inputs. The receiving water bodies support diverse aquatic life and are important for regional biodiversity, including migratory fish species. Protecting these waters from untreated or inadequately treated wastewater is critical for maintaining water quality and ecosystem health.
Frequently asked questions
TP 122 of Hyvinkaan kt is located at Puhdistamontie in the Metsäkalteva district of Hyvinkää, Uusimaa, Finland.
The plant serves approximately 39,000 people, classifying it as a medium-sized agglomeration under EU wastewater treatment standards.
The treated effluent is discharged into local watercourses that flow into the Gulf of Finland, part of the Baltic Sea.
As a Finnish 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 and more advanced treatment in sensitive areas.
Under the EU UWWTD, plants serving over 10,000 population equivalent are required to have secondary treatment. For sensitive areas like the Baltic Sea catchment, tertiary treatment for nutrient removal is often required.
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