Fermenter or post-fermenter for producing biogas by anaerobic degradation of biomass containing manure or organic material has roof made up of flexible sections which act as buffer stores for biogas and cover apertures in rigid roof

摘要

Fermenter or post-fermenter (10) for producing biogas by anaerobic degradation of biomass (1) containing manure and/or organic material has a roof made up of sections with different properties. Flexible sections (4) which act as buffer stores for biogas cover apertures (7) in a rigid roof (6), on which stirrers, etc, are mounted.