This practical trial tested the use of enzymes in biogas plants with manure.
The methane yield was increased, substrate utilization improved and the process stabilized, which increases efficiency and profitability.
The more than 9,000 German biogas plants are not only a valuable support for the energy supply in the short term, but can also be a system-relevant pillar of the energy transition in the long term thanks to their storage capacity and environmental friendliness.
Innovative-Landwirtschaft-WELT-2022-Grünes-Gas-durch-effiziente-Nutzung-von-Abfällen-Mis t-und-GulleA new test system for selecting optimal enzyme mixtures significantly improves the flowability of fermenter contents.
This reduces unstable processes, high internal power consumption and performance losses due to reduced stirring effort.
The use of enzymes in biogas plants is hotly debated, but shows a lot of potential.
A study showed that some preparations can improve viscosity in the fermenter and increase the degradation rate, which promotes efficiency and environmental friendliness.
The cell wall consists of complex polysaccharides, proteins and lignin that require different enzymes to break down. Debranching enzymes play a key role by breaking down compounds, which facilitates the release of important nutrients and improves degradability. (EN.)
Feedstuffs-2016-Debranching-enzymes-enhance-corn-soybean-meal-dietsThis study shows that organic residues such as brewer's spent grains and pig manure can be efficiently converted into methane.
Through enzymatic pre-hydrolysis and optimized bioreactor designs, a significantly higher methane yield was achieved, which represents a promising method for the sustainable use of biowaste (EN).
