Overview
TP 749 of Sallan kk is an advanced wastewater treatment plant in Salla, Lappi, Finland, serving approximately 4,600 people. It discharges treated wastewater into the local watershed, supporting the region's water quality.
TP 749 of Sallan kk is a municipal wastewater treatment facility located in Salla, within the Lappi region of Finland. The plant serves a population of around 4,600, reflecting its role as a key infrastructure for this northern community. As part of Finland's extensive wastewater network, it contributes to the protection of local water bodies. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a reported discharge volume of 753.92 (units unspecified, likely cubic meters per day or year), it operates under Finland's stringent environmental regulations, which align with the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive requires secondary treatment, but Finland often mandates tertiary or advanced treatment to safeguard sensitive receiving waters. The treated effluent is released into the local watershed, which ultimately drains into the Baltic Sea via river systems such as the Kemijoki or other northern basins. This discharge supports the ecological health of downstream rivers and lakes, which are vital for biodiversity and local communities. The plant's advanced treatment helps minimize nutrient loading, protecting the fragile Arctic and subarctic ecosystems.
Environmental context
The plant discharges into the local watershed of Salla, part of the Kemijoki river basin, which flows into the Bothnian Bay of the Baltic Sea. This region features sensitive freshwater ecosystems, including oligotrophic lakes and rivers that support salmonid fish populations. Advanced treatment reduces phosphorus and nitrogen inputs, mitigating eutrophication risks in the Baltic Sea, a semi-enclosed sea already under nutrient stress.
Frequently asked questions
TP 749 of Sallan kk is located in Salla, within the Lappi region of Finland. It serves the local municipality in the eastern part of Finnish Lapland.
The plant serves approximately 4,600 people, making it a medium-sized facility for the region. It handles municipal wastewater from the Salla area.
The plant discharges treated effluent into the local watershed, which flows into the Kemijoki river system and eventually reaches the Bothnian Bay of the Baltic Sea. The advanced treatment ensures high-quality discharge.
The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive for agglomerations of this size. This includes nutrient removal to protect sensitive water bodies.
Finland implements the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent. For plants in sensitive areas like Lapland, advanced treatment is often required to reduce nutrient loads to the Baltic Sea.
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