Overview
OREYE is a secondary wastewater treatment plant in Oreye, Liège, Belgium, serving a population of 899. It has a designed capacity of 3,150 m³/day and discharges 160.70 m³/day.
OREYE is a municipal wastewater treatment plant located in Oreye, a town in the Liège province of Wallonia, Belgium. The facility serves a small population of 899 residents and is part of the region's wastewater infrastructure managed under Belgian and European regulations. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,150 m³/day and an actual discharge volume of 160.70 m³/day, the plant operates well below its capacity, indicating ample headroom for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Meuse River basin. The Meuse flows north through Belgium and the Netherlands before reaching the North Sea. The plant's operation helps protect the local Geer River and downstream aquatic ecosystems from nutrient pollution and organic load.
Environmental context
The plant discharges into the Geer River, a tributary of the Meuse River. The Meuse flows through Belgium and the Netherlands, eventually reaching the North Sea. The watershed supports diverse aquatic life and is an important ecological corridor in the region. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the river system.
Frequently asked questions
The OREYE plant is located at 14 Rue des Prés, in the town of Oreye, within the Liège province of Wallonia, Belgium.
The plant serves a population of 899 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into local watercourses that flow into the Geer River, a tributary of the Meuse River, which ultimately reaches the North Sea.
The plant provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive for small agglomerations. This involves biological treatment to reduce organic matter and suspended solids.
As a Belgian plant serving fewer than 2,000 people, OREYE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all discharges from agglomerations of this size. Belgian authorities enforce compliance through regional permits.
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