Overview
Monserud avlopsanlegg serves Hønefoss, Norway, treating wastewater for approximately 17,000 people. The plant operates under Norwegian regulations aligned with the EU Urban Waste Water Treatment Directive.
Monserud avlopsanlegg is a wastewater treatment plant located in Hønefoss, Ringerike, Buskerud, Norway. It serves a population of approximately 17,064, placing it in the medium agglomeration category under Norwegian and EU classification. The plant is situated inland, away from the coast, and its operations are part of the municipal infrastructure for the region. The plant is expected to comply with the EU Urban Waste Water Treatment Directive (91/271/EEC), which Norway implements through its national regulations. For agglomerations of this size, secondary treatment is typically required, with tertiary treatment in sensitive areas. The designed capacity is reported as 1.00, though the unit is unspecified, indicating the plant's scale. The treated effluent is discharged into the local watershed, which ultimately drains into the Tyrifjorden lake system and eventually the Drammenselva river, flowing into the Drammensfjord. This water body supports diverse aquatic life and is important for recreation and local ecology. The plant plays a key role in protecting water quality in this inland freshwater system.
Environmental context
The plant discharges into the local watershed that feeds Tyrifjorden, a large lake in Buskerud, which drains via the Drammenselva river into the Drammensfjord, an arm of the Oslofjord. This freshwater-to-fjord system supports diverse aquatic life, including fish species like trout and perch, and is used for recreation. Protecting water quality here is vital for maintaining ecological balance and downstream coastal health.
Frequently asked questions
Monserud avlopsanlegg is located at 74 Monserudveien in Hønefoss, Ringerike, Buskerud, Norway.
The plant serves approximately 17,064 people, classifying it as a medium-sized agglomeration under Norwegian and EU standards.
The treated effluent is discharged into the local watershed, which flows into Tyrifjorden lake and then via the Drammenselva river to the Drammensfjord.
As a Norwegian plant, it operates under national regulations that implement the EU Urban Waste Water Treatment Directive (91/271/EEC), requiring secondary treatment for agglomerations of this size.
For medium agglomerations in Norway, secondary treatment is standard, with tertiary treatment applied in sensitive areas to protect water bodies like Tyrifjorden.
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