Overview
Mariagerfjord Renseanlaeg is a wastewater treatment plant in Denmark serving approximately 43,000 people. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Mariagerfjord Renseanlaeg is a wastewater treatment plant located in Denmark, serving a population of approximately 43,145. The plant is situated near the coast, within 50 kilometers of the sea, and plays a key role in managing municipal wastewater for the region. As a Danish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 10,000 and 150,000. Typical plants of this scale have capacities in the range of tens of thousands of cubic meters per day. The treated effluent from Mariagerfjord Renseanlaeg is discharged into the local watershed, which ultimately drains into the Kattegat sea area. This coastal discharge is subject to Danish environmental regulations that aim to protect marine ecosystems from nutrient pollution and other contaminants.
Environmental context
The plant discharges into the Mariager Fjord, a narrow inlet of the Kattegat sea. This coastal water body supports diverse aquatic life, including fish and bird species, and is ecologically sensitive to nutrient inputs. The fjord's waters eventually flow into the Kattegat and then the North Sea, making the plant's treatment performance important for regional marine health.
Frequently asked questions
Mariagerfjord Renseanlaeg is located in Denmark, near the coast of the Kattegat sea. The plant serves the Mariagerfjord area and discharges into the local fjord system.
The plant serves approximately 43,145 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.
The treated wastewater is discharged into the Mariager Fjord, which flows into the Kattegat sea. The discharge is regulated to protect the coastal marine environment.
As a Danish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Danish authorities enforce compliance through national permits.
For agglomerations between 10,000 and 150,000 PE, the EU directive mandates secondary treatment. Many Danish plants also incorporate nutrient removal to protect sensitive coastal waters like the Kattegat.
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