Overview
Regstrup wastewater treatment plant in Holbæk, Denmark, serves 2,710 people with advanced treatment. It discharges 763.39 m³/day and is located within 10 km of the coast.
Regstrup wastewater treatment plant is located in Holbæk, Region Sjælland, Denmark. It serves a population of 2,710 and has a designed capacity of 4,500 m³/day, currently treating 763.39 m³/day. The plant provides advanced treatment, ensuring high-quality effluent before discharge. As a Danish facility, Regstrup operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas. Denmark's national regulations enforce strict nutrient removal standards, particularly for nitrogen and phosphorus, to protect coastal waters. The plant's advanced treatment level aligns with these requirements. The plant is situated within 10 km of the coast, and its treated effluent likely discharges into the Isefjord or a nearby coastal water body. This area supports diverse marine life and is part of the Kattegat basin, which connects to the Baltic Sea. Proper treatment is critical to prevent eutrophication and protect local ecosystems.
Environmental context
The plant's discharge likely enters the Isefjord, a shallow fjord system that flows into the Kattegat and ultimately the Baltic Sea. The coastal waters in this region are sensitive to nutrient loading, which can cause algal blooms and oxygen depletion. Advanced treatment at Regstrup helps mitigate these risks by reducing nitrogen and phosphorus levels, supporting the ecological health of the fjord and downstream marine environments.
Frequently asked questions
Regstrup wastewater treatment plant is located in Holbæk, Region Sjælland, Denmark, at Løvenborgvej 1C, 4420 Regstrup.
Regstrup wastewater treatment plant serves a population of 2,710 people.
Regstrup discharges treated wastewater into the local coastal waters, likely the Isefjord, which flows into the Kattegat and Baltic Sea. The plant uses advanced treatment to ensure high effluent quality.
Regstrup helps protect the Isefjord and downstream coastal waters of the Kattegat and Baltic Sea by treating wastewater to advanced standards, reducing nutrient pollution.
Regstrup, serving 2,710 people, is classified as a small agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). For coastal discharges, the directive requires at least secondary treatment, but Denmark mandates advanced treatment in sensitive areas to protect the Baltic Sea from eutrophication.
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