TP 301 of Kokemaen kt - Advanced Wastewater Treatment in Kokemäki, Satakunta

TP 301 of Kokemaen kt is an advanced wastewater treatment facility located in Kokemäki, within the Satakunta region of southwestern Finland. The plant serves a population of approximately 5,800 residents, making it a small to medium-sized municipal treatment facility in the Finnish wastewater network. The plant employs advanced treatment processes, which go beyond the secondary treatment standards required by the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive mandates secondary treatment, but Finland often implements advanced treatment to protect sensitive water bodies. The plant's discharge volume of 950.60 cubic meters per day reflects its capacity to handle local wastewater flows effectively. The treated effluent from TP 301 is discharged into the local watershed, which ultimately drains into the Kokemäenjoki river system and then into the Gulf of Bothnia, part of the Baltic Sea. The Baltic Sea is a sensitive marine environment prone to eutrophication, making advanced nutrient removal crucial for protecting downstream ecosystems and supporting regional water quality goals.

The plant discharges into the Kokemäenjoki river basin, which flows into the Gulf of Bothnia, a northern arm of the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it highly sensitive to nutrient pollution. Advanced treatment at this plant helps reduce phosphorus and nitrogen loads, mitigating eutrophication risks in downstream coastal waters and supporting the ecological health of the Kokemäenjoki river system.