Because of their composition, sugar beet are very well suited for biogas production. This is due both to their favourable properties for the fermentation process and their high dry matter yields.
However, the soil tare and the high stone content represent a challenge for biogas production with beet. We have developed a simple solution for this: The Weber cleaner for mobile stone separation from sugar beet. The functional principle is as simple as it is ingenious, and makes use of the different densities of stones and beet. It makes use of a saline solution, where the stones sink to the bottom and the beet float at the top. The kainite solution can be spread as fertiliser on the field afterwards.