Overview
Gjerdrum renseanlegg serves the town of Ask in Akershus, Norway, treating wastewater for approximately 4,883 residents. The plant operates under Norway's implementation of the EU Urban Waste Water Treatment Directive.
Gjerdrum renseanlegg is a municipal wastewater treatment plant located in Ask, Gjerdrum, Akershus, Norway. It serves a population of around 4,883 people, classifying it as a small to medium agglomeration under Norwegian regulations. The plant is situated inland, away from the coast, and discharges into local waterways. As a Norwegian facility, the plant operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The designed capacity is 1.00 (likely in thousand cubic meters per year or similar), indicating a modest scale appropriate for the served population. The regulatory framework ensures compliance with discharge standards. The treated effluent from Gjerdrum renseanlegg is discharged into the local watershed, which ultimately drains into the Glomma River basin and then into the Oslofjord. The plant plays a key role in protecting the water quality of these downstream environments, supporting aquatic life and recreational use.
Environmental context
The plant discharges into the local watershed that feeds into the Glomma River, Norway's longest river, which flows into the Oslofjord. The Oslofjord is an ecologically important marine area supporting diverse fish populations and serving as a migratory corridor for seabirds. The plant's treatment helps reduce nutrient loading and protect this downstream ecosystem from eutrophication.
Frequently asked questions
Gjerdrum renseanlegg is located in Ask, Gjerdrum, Akershus, Norway, at Kulsrudgutua in Leirdalen.
The plant serves approximately 4,883 people, classifying it as a small to medium agglomeration under Norwegian wastewater regulations.
The treated effluent is discharged into the local watershed, which flows into the Glomma River and eventually into the Oslofjord.
As a Norwegian plant, it operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU UWWTD, agglomerations between 2,000 and 10,000 population equivalent require secondary treatment, which is the standard for plants like Gjerdrum renseanlegg.
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