Overview
TP 331 of Kouvolan kt is a municipal wastewater treatment plant in Kouvola, Kymenlaakso, Finland, serving approximately 80,000 people. It operates under Finland's implementation of the EU Urban Waste Water Treatment Directive.
TP 331 of Kouvolan kt is a municipal wastewater treatment facility located in Kouvola, within the Kymenlaakso region of southern Finland. The plant serves a population of around 80,000, placing it in the medium-to-large agglomeration category under EU classification. As a Finnish wastewater treatment plant, TP 331 operates under the national regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive requires at least secondary treatment, with more stringent requirements if the discharge enters a sensitive area. The plant's designed capacity is 1.00 (likely in thousand cubic meters per day or similar units), indicating its scale. The treated effluent from TP 331 is discharged into the local watershed, which ultimately drains into the Gulf of Finland, part of the Baltic Sea. The Baltic Sea is a brackish water body with limited water exchange, making it sensitive to nutrient pollution. The plant's performance is therefore important for protecting downstream aquatic ecosystems and supporting regional water quality goals.
Environmental context
The plant discharges into the Kymi River basin, which flows into the Gulf of Finland, a sub-basin of the Baltic Sea. The Baltic Sea is a semi-enclosed, brackish sea with a long residence time, making it highly sensitive to eutrophication from nutrient inputs. The Kymi River watershed supports diverse aquatic life and is an important migratory corridor for fish species. Effective wastewater treatment at TP 331 helps reduce the nutrient load reaching the Baltic Sea, contributing to regional efforts to combat algal blooms and preserve marine biodiversity.
Frequently asked questions
TP 331 of Kouvolan kt is located in Kouvola, in the Kymenlaakso region of southern Finland. The plant serves the municipality of Kouvola and surrounding areas.
The plant serves approximately 80,000 people, classifying it as a medium-to-large agglomeration under the EU Urban Waste Water Treatment Directive.
The treated wastewater from TP 331 of Kouvolan kt is discharged into the local watershed, which flows into the Kymi River and ultimately reaches the Gulf of Finland in the Baltic Sea.
The plant operates under Finnish environmental regulations that implement the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive mandates at least secondary treatment, with additional requirements for sensitive areas.
In Finland, wastewater treatment plants serving populations of this scale typically provide secondary or tertiary treatment. The EU UWWTD requires secondary treatment for agglomerations over 10,000 people, and tertiary treatment may be required in sensitive areas to reduce nutrient loads.
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