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Reference in the dairy processing industry: cheese dairy (12)
Problem / oppotunity
Expansion of the cheese dairy and extension of the existing methanisation unit built by VALBIO in 2010
From 2 million to 5 million litres of milk processed per year
Regulatory obligation to purify effluents:
White water: 7.5 million litres / year
Whey: 3.5 million litres / year
Solution :
Expansion of pre-treatment facilities
Methanisation of effluents using VALBIO METHACORE® technology – Replacement of the 2 existing 55 m3 digesters by 2 140 m3 digesters
Biogas used in the existing boiler to produce the hot water needed to make cheese
Expansion of the aerobic finishing treatment
Extension currently under construction
Result of methanisation :
270,000 m3 of biogas produced per year
1,500,000 kWh / year
Purification efficiency:
DCO: 95% BOD: 95%.