The SIAAP (Intercommunal Sanitation Union of the Paris agglomeration) and Veolia inaugurated, on October 29, the largest French plant for the production of biomethane from wastewater treatment sludge, located on the Seine Valenton site (Val -de-Marne) of the SIAPP.
This unit, representing an investment of 18.5 million euros, entirely supported by the union, has a biogas processing capacity of 1800 nm3/h (standard cubic meter/hour) and will allow, from 2025, to inject 45 GWh of carbon-free energy into the GRDF network each year, equivalent to the annual consumption of more than 10,000 homes.
«This is our first biomethane production plant. On the Valenton site, we have a surplus of biogas that we did not use on site and which was flared, therefore lost. We therefore needed this new installation in order to be able to inject into the network», Reports François-Marie Didier, president of SIAAP. This valorization of biomethane should allow the union to record 1.6 million euros in additional revenue each year, he specifies.
Innovative solution for purifying gas
This equipment is the result of two years of studies and work carried out by the group of companies led by OTV, a subsidiary of Veolia specializing in the construction of water and sludge treatment plants. “A true technological feat, this unit is the first in France to achieve such processing capacity. A performance made possible in particular by the know-how of Biothane, a subsidiary of Veolia, which has developed an efficient solution for purifying biogas. The deployment of a Hubgrade digital solution also optimizes the intelligent management of biogas flows on the site», Specifies a press release.
«This cutting-edge collaboration with SIAAP and our various technological entities demonstrates, through a pioneering project in France, Veolia's ability to innovate and sustainably manage the water cycle while reducing the carbon footprint of an activity on a given territory, in this case, around the Valenton site», For her part, declared Anne Le Guennec, director of the Global Water Technologies area at Veolia, during the inauguration.
Commissioned in 1987, the Valenton plant treats wastewater from a large part of the eastern and south-eastern Paris basin, the equivalent of 3.6 million inhabitants. It is, with the Seine-Aval sites in Achères (Yvelines) and Seine-Grésillons in Triel (Yvelines), one of the union's three factories producing biomethane.
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