MOMALLE Wastewater Treatment Plant, Remicourt, Liège, Belgium

MOMALLE is a wastewater treatment plant located in the municipality of Remicourt, within the province of Liège in Wallonia, Belgium. The plant serves a population equivalent of 2,524, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). It is situated in a rural area, contributing to the local sanitation infrastructure. As a secondary treatment facility, MOMALLE meets the minimum standard required by the EU UWWTD for freshwater discharges from agglomerations of this size. The plant has a designed capacity of 2,250 cubic meters per day and currently treats an average daily flow of 451.16 cubic meters, indicating significant spare capacity. This operational margin suggests the plant can accommodate future population growth or increased inflow. The treated effluent from MOMALLE is discharged into local watercourses that ultimately drain into the Meuse River basin. The Meuse flows through Belgium and the Netherlands before reaching the North Sea. The plant's secondary treatment helps protect downstream water quality, supporting aquatic life and reducing nutrient loads that could cause eutrophication in the river and coastal zone.

MOMALLE discharges into small streams that are part of the Meuse River basin. The Meuse River flows northward through Belgium and the Netherlands, eventually emptying into the North Sea via the Rhine-Meuse-Scheldt delta. The local watershed includes agricultural areas and small villages, making the plant's nutrient removal important for preventing algal blooms in downstream water bodies. The Meuse basin supports diverse fish populations and is a critical water resource for drinking water production in the region.