Overview
Elstrom avlopsrenseanlegg is a wastewater treatment plant serving Skien, Norway, with a population equivalent of 24,552. The plant's designed capacity is 1.00, and it operates under Norway's implementation of the EU Urban Waste Water Treatment Direct
Elstrom avlopsrenseanlegg is a municipal wastewater treatment plant located in Skien, Telemark, Norway. It serves a population of approximately 24,552 people, classifying it as a medium-sized agglomeration under Norwegian and EU regulations. The plant is situated inland, more than 50 km from the coast, and its operations are part of the region's water management infrastructure. As a Norwegian facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which Norway implements through its national regulations. For agglomerations of this size (between 10,000 and 100,000 population equivalent), the directive requires secondary treatment as a minimum, with more stringent treatment in sensitive areas. The treated effluent from Elstrom avlopsrenseanlegg is discharged into the local water system, which ultimately drains into the Skien River (Skienselva) and then into the Frierfjord, a part of the Grenland fjord system. This fjord system flows into the Skagerrak strait, connecting to the North Sea. The receiving waters support diverse aquatic life and are important for local fisheries and recreation.
Environmental context
The plant's discharge enters the Skien River watershed, which flows through Telemark county into the Frierfjord, a coastal fjord that is part of the larger Grenland fjord system. This fjord system is ecologically sensitive, supporting marine biodiversity and serving as a habitat for fish species such as cod and herring. The Skagerrak, into which the fjord drains, is a key waterway for marine life and shipping. Proper treatment is essential to prevent nutrient loading and protect these downstream ecosystems.
Frequently asked questions
Elstrom avlopsrenseanlegg is located in Skien, Telemark, Norway. It serves the municipal wastewater needs of the local population.
The plant serves a population equivalent of 24,552 people, classifying it as a medium-sized agglomeration under Norwegian and EU regulations.
The treated effluent is discharged into the Skien River watershed, which flows into the Frierfjord and then into the Skagerrak strait, ultimately reaching the North Sea.
As a Norwegian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), implemented through national regulations. For its size, secondary treatment is required, with potential for more stringent treatment in sensitive areas.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 100,000 population equivalent are generally required to provide secondary treatment. In sensitive areas, such as those discharging into fjords, additional nutrient removal may be mandated.
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