Overview
TP 443 of Lohjan kt is a municipal wastewater treatment plant in Lohja, Uusimaa, Finland, serving approximately 29,000 people. The plant operates under Finland's implementation of the EU Urban Waste Water Treatment Directive.
TP 443 of Lohjan kt is a wastewater treatment facility located in the Pitkäniemi district of Lohja, in the Uusimaa region of southern Finland. The plant serves a population of around 29,000, classifying it as a medium-sized agglomeration under EU regulations. Its address is Pitkäniemen jätevedenpuhdistamo, 7, Kotkantie, Pitkäniemi, Lohja. As a Finnish plant serving over 10,000 people, TP 443 of Lohjan kt is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum. For agglomerations between 10,000 and 150,000 population equivalent, the directive mandates secondary treatment, with tertiary treatment required if the discharge enters a sensitive area. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day or similar unit), indicating it is sized to handle the local load. The plant discharges treated wastewater into the local water system, 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. Effective treatment at plants like TP 443 of Lohjan kt is crucial for reducing eutrophication risks in this vulnerable marine environment.
Environmental context
The treated effluent from TP 443 of Lohjan kt flows into local watercourses that drain 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 susceptible to eutrophication from nutrient inputs. The plant's location in southern Finland places it within a region where agricultural and urban runoff contribute to nutrient loads, and advanced treatment helps mitigate these impacts on downstream ecosystems.
Frequently asked questions
TP 443 of Lohjan kt is located in the Pitkäniemi district of Lohja, in the Uusimaa region of southern Finland. The full address is Pitkäniemen jätevedenpuhdistamo, 7, Kotkantie, Pitkäniemi, Lohja, 08100.
The plant serves approximately 29,000 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.
The treated wastewater is discharged into local watercourses that eventually flow into the Gulf of Finland, part of the Baltic Sea. The plant's discharge is regulated to meet EU standards for secondary treatment.
As a Finnish plant serving over 10,000 people, TP 443 of Lohjan kt operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and, if needed, tertiary treatment for sensitive areas.
In Finland, plants serving agglomerations of this size typically provide secondary biological treatment, often with nutrient removal to protect the Baltic Sea. Many also incorporate tertiary treatment to reduce phosphorus and nitrogen loads.
Nearby plants