Gevninge Wastewater Treatment Plant - Advanced Treatment in Region Sjælland, Denmark

Gevninge wastewater treatment plant is located in the town of Gevninge, within Lejre Municipality, Region Sjælland, Denmark. The facility serves a population of 2,150 and is part of the country's comprehensive wastewater infrastructure, which is regulated under Danish law and the EU Urban Waste Water Treatment Directive. The plant employs advanced treatment processes, ensuring high-quality effluent before discharge. With a designed capacity of 4,000 m³/day and an average daily flow of 156.94 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. As an advanced treatment facility, it likely includes nutrient removal to protect sensitive receiving waters. The plant is situated within 10 km of the coast, meaning its treated effluent ultimately reaches the marine environment of the Kattegat or the Baltic Sea via local streams and fjords. This proximity to coastal waters underscores the importance of advanced treatment to minimize nutrient loading and protect marine ecosystems.

The plant discharges into local watercourses that drain into the Isefjord or Roskilde Fjord, both of which are part of the greater Kattegat basin. These fjords support diverse aquatic life, including fish and bird populations, and are ecologically sensitive to nutrient pollution. Advanced treatment at Gevninge helps reduce the risk of eutrophication in these coastal waters.