2.1 MW Food Waste Facility for Northern France

05 January 2012

Graz, Austria based BDI - BioEnergy International - a specialist in the construction of multi-feedstock biodiesel facilities - has been commissioned to build a 4.54 million Euro food waste to biogas facility in Northern France.

According to the company construction of the facility, being conducted for a French waste disposal corporation, is expected to begin before the end of the year.

BDI said that once complete the Anaerobic Digestion (AD) facility will produce almost 4.2 million cubic Nm of BioGas and thus generate come 2.1 MW of electricity - enough to supply around 4000 European households.

The company also said that the plant has also been designed in such a way that the capacity can easily be doubled in future.

According to BDI, its unnamed French client collects and separates waste from food production and retail sites, restaurants and the agricultural industry. About 65,000 tonnes of various wastes, including food and grease trap waste and blood will be processed into bio-energy at the facility.
 
However, the company added that since the original material often contains contaminants such as packaging, metals or glass, a new separation concept from BDI is being used at this plant to process the raw materials.

The company said that this new process unit is specially designed for the separation of different waste streams into organic and packaging fractions for optimum co-ordination with the biogas technology.

The separation process enables a high purity level to be achieved with the biogas substrate combined with a clean and dry non-organic material flow, according to BDI.

"This technique that is already being used successfully makes it possible to feed the biogas substrate directly into our fermentation system - without formation of the floating sludge layer that is frequently encountered in conventional processes and which may lead to operational disturbances," commented Dr Edgar Ahn, CSO of BDI.


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