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Biogas (landfill gas)

Gas resulting from the fermentation of landfilled waste in the absence of air (methane/ carbon dioxide).

Biological recovery

Organic waste processing technique using composting or methanisation techniques.

Biolysis®

Procedure to restrict sludge production by 30 to 80% at purification stations. Deployed at the biological basin, Biolysis® (translated into 2 products) causes a chemical or enzymatic «stress». Two actions that make part of the sludge biodegradable, and restrict the development of the others.