The mixed silphie (Danube silphie) is being used more and more frequently in biogas operations. However, until now there has been a lack of practical knowledge about their fermentability and gas yields. Therefore, in 2017, together with Metzler & Brodmann KG (Donau-Silphie sales), we decided to carry out practical tests in our own test facility
The result is convincing! The gas yields are significantly higher than the yields stated in the literature. Findings from the experiments are:
- Constantly high gas yield.
- Good silageability and low formation of seeping juice, despite low dry matter content.
- Ideal degradation of the visually woody plant material.
- Based on the dry organic matter, a comparable gas yield was achieved with corn.
Further testing also tested the effects of using Sangrovit®-based products. The results are consistently positive: By using SensoPower Hybrid, the gas yield could be increased again.
We tested in our own test facility and in real biogas plants. If you are interested, you can find the article about the use and experiences with the Danube Silphie here. Or visit the website:
https://www.donau-silphie.de/