The process starts similar to tradition AD process with feedstock undergoing process of hydrolysis, but in the RaCBio this is much more controlled than in traditional systems. From the controlled hydrolysis process high volatile fatty acids are extracted and moved over to the methoginesis stage via a specialised filtration system.
This means skipping the other two stages namely, acidification and acidogenesis were proteins, lipids and sugars are converted into amino acids and carbohydrates. By removing these steps, the digestion period is significantly reduced from weeks to hours and due to the absence of proteins no amino acids can be generated, so biogas produced through this system is free of sulphur.
As in a cow the proteins of the material is consumed and converted in to energy and milk and the “left over” comes out as manure. In the RaCBio system the digestate still contains all the proteins that was in the feedstock producing a high value animal. The volatile fatty acids is now converted in a separate digester where the methanogenesis process converts it in to bio-methane or biogas. A by-product of the process is a liquid high in concentrated N, phosphor, potassium, calcium and magnesium this is a high value 100% organic liquid soil enhancer.