France: Wastewater Treatment New Plant Uses Biomethane From Wastewater Treatment

Editor: Alexander Stark

Suez, through its subsidiary Seramm, started the construction of a biomethane production and injection plant, produced from wastewater treatment process.

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Sewage sludge treatment plant in Marseille
Sewage sludge treatment plant in Marseille
(Source: Suez)

Marseille/France — A consortium of local and national authorities together with Suez invest $ 11.4 million in the conversion of part of Marseille’s Géolide wastewater treatment plant, with the aim of producing enough biomethane to supply 2,500 households from 1 January 2019.

The company manages the wastewater treatment system for Marseille urban area and four other municipalities in the Aix-Marseille-Provence metropolitan area. For the project, Suez is converting its sewage sludge treatment plant, located in Sormiou quarry, to launch the biggest biomethane production project so far in France.

From 1 January 2019, the biogas produced in the sludge digestion process will be collected, converted into biomethane and injected into the public natural gas network with a total volume of 2.3 million Nm3 per year. The facility has been designed with a future extension in mind, allowing for a volume of 3.8 million Nm3/year, which will make it the largest in France.

Aix-Marseille-Provence metropolitan area will be able to produce enough green energy to supply about 2,500 households. The compressed biomethane is also suitable for use as biofuel for public transport running on natural gas (NGV).

In partnership with its local authority and industrial customers, Suez is planning to increase its production of biomethane in France by 30 to 50 % by 2020.

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