Overview
TP 995 of Ahtarin kt is an advanced wastewater treatment plant serving Ähtäri, Finland. It treats wastewater for approximately 6,000 residents in the Etelä-Pohjanmaa region.
TP 995 of Ahtarin kt is an advanced wastewater treatment plant located in Ähtäri, within the Etelä-Pohjanmaa region of Finland. The plant serves a population of approximately 6,000 people, providing essential sanitation services to this inland community. As an advanced treatment facility, TP 995 of Ahtarin kt goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent Finnish environmental standards. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving agglomerations of this size are required to achieve secondary treatment, and Finland often mandates tertiary or advanced treatment in sensitive areas to protect water quality. The plant discharges treated wastewater into local watercourses that ultimately drain into the Baltic Sea via the Kokemäenjoki river system. This advanced treatment helps reduce nutrient loading, safeguarding downstream aquatic ecosystems and contributing to the health of the Baltic Sea, which is highly sensitive to eutrophication.
Environmental context
The plant's treated effluent flows into small streams near Ähtäri, which are part of the Kokemäenjoki drainage basin. This river system eventually reaches the Bothnian Sea, a basin of the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it vulnerable to nutrient pollution. Advanced treatment at this plant helps mitigate eutrophication risks by reducing nitrogen and phosphorus loads, supporting the ecological balance of downstream waters.
Frequently asked questions
TP 995 of Ahtarin kt is located in Ähtäri, in the Etelä-Pohjanmaa region of Finland. The address is Mustikkavuorentie, Pöyhönen, Ähtäri.
The plant serves approximately 6,000 residents in the Ähtäri area.
The plant uses advanced treatment processes, which typically include biological nutrient removal to reduce nitrogen and phosphorus levels beyond secondary treatment standards.
The plant discharges into local streams that flow into the Kokemäenjoki river system, which drains into the Bothnian Sea, part of the Baltic Sea. Advanced treatment helps protect these waters from nutrient pollution.
As a Finnish plant serving over 2,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum. Finland often mandates advanced treatment in sensitive areas to meet national environmental goals.
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