It was installed at the Seine Valenton plant and will inject 45 GWh of decarbonising energy into the GrDF network, the equivalent of the annual consumption of more than 10,000 households.
The plant was inaugurated in the presence of François -Marie Didier, President of SIAAP, Antoine Frérot, President of the Veolia Group, Anne Le Guennec, Director of the Veolia Global Water Technologies Zone, Laurence Poirier-Dietz, CEO of GrDF, Metin Yavuz , Mayor of Valenton and Bachir Bakhti, Sub-Prefect of Nogent-sur-Marne and local elected officials.
Industries and territories are looking for solutions that will allow them to reduce their carbon footprint and, at the same time, exploit new local resources. The methanization of sludge purification now makes it possible to ensure a stable supply of local, renewable and low-carbon energy. The Valenton unit will enable the displacement of 9,000 tonnes of CO2 equivalent each year.
The unit is the first in France to achieve such a treatment capacity, with a maximum injection capacity of 1,300 Nm3/h of biomethane (equivalent to the treatment of a maximum of 1,800 Nm3/h of biogas). ), an installed power of the unit of 11.5 MW. This has been made possible through the experience acquired by Biothane, a subsidiary of Veolia, which has developed a high-performance solution for purifying biogas and producing biomethane. The deployment of a Hubgrade digital solution further optimizes the intelligent management of biogas flows on the site.
Commissioned in 1987, the Seine Valenton plant is one of the six SIAAP wastewater treatment plants. The second largest treatment plant in France and Europe, it treats wastewater from a large part of the Seine-Valenton basin. east and south-east of Paris, equivalent to 2.2 million inhabitants. The plant produces biogas from sludge from wastewater treatment.
“Resource recovery is a key issue in sanitation today” said François-Marie Didier, President of the SIAAP. “Making our plants sustainable energy production hubs that benefit the region and the environment is part of our mission. “This new unit foreshadows the major 'Tomorrow's projects' undertaken by the SIAAP with the aim of being more sovereign in terms of fossil energy consumption and moving towards energy neutrality,”
Based on an investment of 18.5 million euros on the site operated by SIVAL, a mixed economy company in which Veolia is a shareholder, this cutting-edge unit was built by the group of companies led by OTV, a subsidiary of Veolia specializing in the construction of water and sludge treatment plants and the recovery of biogas produced by the methanization of sludge from the treatment of wastewater from the Paris metropolitan area.
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