French Municipal Waste To Produce Energy

A large-scale bio-digestion plant in Bourg-en-Bresse, France is to be developed by Belgian company Organic Waste Systems nv (OWS).

Together with the French firm Tiru, a subsidiary of EDF, the project will treat 90,000 tons of mixed household waste per year, together with 15,000 tons of green waste. The project amounts to a total of €54 million [US $83 million] with the OWS component accounting for €17 million [US $26 million].

The construction in Bourg-en-Bresse will start in March 2009 and is expected to take two years. Once in operation, the project will produce 30,500 tons of compost yearly and 14 gigawatt-hours (GWh) of electricity.

The order entails the turnkey supply of a plant using “DRANCO-technology,” a dry digestion process for the treatment of organics from municipal solid waste. The waste is first treated in two rotating drums for two days to reduce the organic fraction to less than 40 mm, which is subsequently digested in two vertical silos of 2,000m³ volume.

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