Seraucourt-le-Grand nouvelle Wastewater Treatment Plant, Hauts-de-France

Seraucourt-le-Grand nouvelle is an advanced wastewater treatment plant located in the commune of Seraucourt-le-Grand, within the Aisne department of the Hauts-de-France region in northern France. The plant serves a population of approximately 1,600 residents and is situated near the Canal de Saint-Quentin, reflecting its role in managing local domestic wastewater. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. With a designed capacity of 2,160 m³/day and an average discharge volume of 285.44 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. As a French wastewater facility, it operates under national regulations transposing the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas. The treated effluent is discharged into the local water system, ultimately draining into the Somme River basin and flowing toward the English Channel. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Somme River and its estuary, supporting biodiversity and water quality in the region.

The plant discharges into the Canal de Saint-Quentin, which connects to the Somme River. The Somme River flows through the Hauts-de-France region and empties into the English Channel via the Somme estuary. This estuary is an ecologically significant area that supports diverse birdlife and fish populations, including migratory species. The advanced treatment provided by the plant helps reduce nutrient loading and protects the sensitive downstream environment.