Substrates

73 000 tons/yr of sewage sludge

• Thin organic particles extraction with fine wire grille
• The material is pumped toward the digestion tanks from the primary and secondary sedimentation tanks

Digestion

3 LIPP digesters (1 600 m³ ea.)

• Integrated biogas reserve (3 x 600m³)
• Lateral mixing digestion tank with a drain
• Heating by heat recuperation
• Hydric capacity of 250 m³/day
• Solid capacity of 36 tons/day (13 000 dried tons/yr)

Biogas

3 integrated biogas reserves (600 m³ ea.)

• Production 150 m³/hour
• Biogas used to dry the digestate

Digestate

Dried and valorised in agriculture

• Solid and liquid separation with band filter (20% DM)
• Thermic drying of the solid fraction (90% DM)
• Liquid fraction used for a membranous filtration research project

Substrates

Slurry, grass, corn and wheat silage

• Crushed in the concrete pit reception
• Hydrolysis in the heated concrete pit reception

Digestion

2 LIPP digesters (1 800 and 2 800 m³)

• Integrated biogas reserve (700 m³)
• Lateral mixing digestion tank with a drain
• Heating by heat recuperation
• Hydric capacity of 90 m³/day
• Solid capacity of 20 tons/day (7 300 dried tons/yr)

Biogas

Cogenerator 370 kW

• Used to create electricity and heating power

Digestate

Used in agriculture

• Spread on fields

Substrates

7 500 tons of food scrap/yr

• Garbage bin collecte and manual sorting
• Slurry directly pumped in the mixing pit
• Food scrap pasteurisation

Digestion

1 LIPP digestion tank (1 000 m³)

• Lateral mixing digestion tank with a drain
• Heating by heat recuperation
• Hydric capacity of 50 m³/day
• Solid capacity of 7.5 tons/day (2 700 dried tons/yr)

Biogas

Cogeneration of electricity and heat

• Integrated biogas reserve (350 m³)
• Produces around 250 kW/hour

Digestate

Stocked 6 months in a tank (3 000 m³)

• Spreaded directly in fields