A biogas plant provides an efficient, economical and sustainable method of generating energy. A particularly important aspect of the biogas plant is the digester feeding; this is decisive for the gas yield. But how does solid matter feeding suitable for bacteria work? The potential of “liquid feeding” is a widely discussed method in this context.
Using a state-of-the-art Vogelsang solid matter feeder, it is possible to prepare and mix solids with a liquid component in a particularly advantageous way. This treatment enables you to increase your gas yield and reduce your energy costs. How does this work and what technology can help you? Let’s take a closer look!
The term liquid feeding describes a process in which the biomass is mixed with a liquid phase, very often slurry or so-called recirculate from the digester, prior to digester feeding. This process is also called mashing. It produces a feed slurry, or a homogeneous bio-suspension, which is then pumped into the fermentation chamber (digester).
A major advantage of liquid feeding is the reduced energy requirement, which results in lower energy costs. Due to the bacteria-friendly conditioning of biomass using liquid feeding system for solid matter incorporation, more biogas can be obtained than with dry solid matter feeding. With dry solid matter feeding the solids often float on the surface or as lumps in the bio-suspension. This is not beneficial, as mixing or de-clumping using the mixers is usually time-consuming and hardly ever completely resolves the problem. It uses a lot of energy and leads to a reduced gas yield.
Since the biomass enters the digester in liquid form after mashing, it can be mixed with the digester contents using significantly less energy. The gas yield is already increased by the mashing process. If the coarse components are then further prepared, this leads to a further increase in the gas yield. In summary, the multi-layered benefits are:
All these factors contribute to better utilization of the energy in your biomass. The increasing biogas yield ensures efficient operation of your plant.
Vogelsang machines provide the most efficient form of solid matter feeding for your biogas plant. Use the option of liquid feeding to prepare solids in a way that is suitable for bacteria before they are fed to the digester.
The highly efficient CC-Mix delivers cost-effective digester feeding for flowable to slightly pasty solids. This includes corn silage, animal feed or fruit and vegetable scraps.
Due to the efficient mixing with a liquid phase, the CC-Mix mixes the biomass exceptionally efficiently to form a homogeneous bio-suspension. In short, the CC Mix offers:
The PreMix was developed for a wide range of different substrates. It handles everything from manure and mushy food scraps to large-volume fruits and dry biomass like straw.
Thanks to the PreMix you only need one unit for the four stages of separation of heavy matter, mashing, processing and pumping. Features of the PreMix:
Innovative technologies include the scientifically tested catalyst for the gas yield of your biogas plant. So if you use liquid feeding, you can make your biogas plant more efficient and economical with the latest technology from Vogelsang. And all this with high gas yields, lower energy costs and smooth processes, thanks to integrated protection against foreign bodies and many more benefits.