Substrate Pretreatment

Biogas Cooker

– efficient substrate digestion!

High fibre content in grass and manure are “hard to swallow” for the bacteria. It is recommended to install a thermal substrate processor for the use of biogas additives by continuous use of substrates that are difficult to digest. The substrate is heated in our “Cooker” on its way from the digester to the post-digester. The raw fibre contents that have been thermally so separated can be better exploited by the bacteria. The result, dependent on the material composition, is a 5% higher gas yield.