Overview
TP 231 of Karkkilan kt is a municipal wastewater treatment plant in Karkkila, Uusimaa, Finland, serving approximately 7,400 people. The plant is part of Finland's wastewater infrastructure under EU regulations.
TP 231 of Karkkilan kt is a wastewater treatment plant located in Karkkila, a town in the Uusimaa region of southern Finland. The plant serves a population of about 7,400, placing it in the small to medium agglomeration category under the EU Urban Waste Water Treatment Directive (UWWTD). As a Finnish plant, TP 231 operates under the EU UWWTD (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwaters. Finland's national implementation ensures compliance with these standards, and the plant is expected to meet the directive's effluent quality requirements. The plant's treated effluent is discharged into local water bodies that ultimately drain into the Gulf of Finland, part of the Baltic Sea. The Baltic Sea is a sensitive marine environment with eutrophication challenges, making nutrient removal important for plants in the region.
Environmental context
The plant discharges into the local watershed, which flows through the Karjaanjoki river system and eventually into the Gulf of Finland, a sub-basin of the Baltic Sea. The Baltic Sea is highly sensitive to nutrient pollution, and Finnish regulations require advanced treatment for plants in sensitive areas to reduce nitrogen and phosphorus loads.
Frequently asked questions
The plant is located in Karkkila, a town in the Uusimaa region of southern Finland, approximately 60 km northwest of Helsinki.
The plant serves approximately 7,400 people, classifying it as a small to medium agglomeration under EU wastewater directives.
The treated effluent is discharged into local water bodies that flow into the Karjaanjoki river system, eventually reaching the Gulf of Finland and 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 of this size discharging into freshwaters.
Plants of this scale in Finland typically provide secondary biological treatment, and in sensitive areas like the Baltic Sea catchment, they may also include nutrient removal to reduce nitrogen and phosphorus.
Nearby plants