Loken renseanlegg - Advanced Wastewater Treatment Plant in Løken, Norway

Loken renseanlegg is a municipal wastewater treatment plant located in Løken, within the Aurskog-Høland municipality of Akershus, Norway. The plant serves a population of approximately 2,042 people and is designed to handle a capacity of 4,000 cubic meters per day, with an average discharge volume of 885.57 cubic meters per day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a Norwegian facility, it operates under the national regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for discharges into sensitive areas. The plant's advanced treatment level ensures compliance with stringent effluent standards. The treated wastewater is discharged into the local watershed, which ultimately drains into the Glomma River basin, Norway's largest river system. The Glomma flows into the Oslofjord, a vital marine ecosystem. The plant's advanced treatment helps protect downstream water quality and supports the ecological health of the fjord and its tributaries.

The plant discharges into the Glomma River basin, which flows into the Oslofjord, a fjord system supporting diverse marine life and important for fisheries. The advanced treatment reduces nutrient loading, helping to prevent eutrophication in the fjord's sensitive coastal waters. The region's boreal climate and forested catchment influence runoff patterns and seasonal flow variations.