The biomass recirculation filter is based on our tried and tested separation technology. It was developed further so that the new technology of the Sepogant Direkt press screw separator provides both separation and liquid thickening.
The WaveBox ultrasonic treatment has a cascaded design. This cascade system with sonotrodes maximises material break-down because the ultrasonic waves cause air bubbles to form and implode in the substrate. This cavitation results in a higher proportion of organic dry matter being able to release gas due to the breaking down of fibres.
Thanks to the re-feeding method less feedstock is required. As a result, the complete gas potential of the fed substrates can be opened up.
This also makes agitators and associated stirring times in the digestate storage redundant since the material inside the tanks is homogeneous and does not separate again. Furthermore, there is reduced feedstock volume during feeding, resulting in less stress (energy and wear) on the feeding technology.
A standard biogas plant breaks down the organic matter with 75 % efficiency. This percentage increases to around 90 % after a biomass recirculation filter with ultrasonic technology has been installed. This increases the biogas yield to up to 20 % from the original feedstock fed to the biogas plant.