One of the first AD plants with gas to grid in Germany

In In Holleben, Saxony-Anhalt, Germany Agraferm built an AD plant with upgrading of the biogas to biomethane for injection of the grid, one of the first such types of AD plants in 2011. Two digesters with a volume of 3,300 m³ each allow a biomethane output of 700 Nm³ per hour.

The optimised ratio of smaller digester tank size to higher biogas output is characteristic of the AD plant, which CHP was already commissioned in 2010. This is enabled by the high dry matter organic loading rate and high degradation of the feedstock thanks to the patented agitators in smaller size tanks.

As the space for the AD plant in Holleben was limited, the Agraferm technology, which needs less space than typical technologies, offered an important advantage.

The design of the feeding system and the use of robust ADplant components allow for a wide range of possible input feedstocks and the highest possible level of AD plant availability.