Major business segment: Provider of components and substrates, supplier
- Substrate processing: chains act like a mortar
- Organic waste and homogenouslyprocessed substrate
- Bio-QZ on a renewable raw materials plant
MeWa Recycling Maschinen und Anlagenbau GmbH
To bring out the best
MeWa’s Querstromzerspaner (Bio-QZ) processes biogas plant substrates perfectly for bacteria.
Correct substrate processing is a simple but effective key to success in modern biogas plants. The Bio-QZ from German mechanical engineering company MeWa Recycling Maschinen und Anlagenbau GmbH offers the perfect solution for this task.
Whether energy crops from the field, out-of-date food, organic waste from bins, slaughterhouse waste or surplus seasonal fruit – biomass contains an immense quantity of energy. However, only once the substrate has been optimally processed can the bacterial strains in the digester start the quick, effective decomposition of the matter.
QZ works like a mortar
Instead of chopping the input material, the Bio-QZ from MeWa works like a cow in nature. As demonstrated by cows chewing the cud on the meadow, QZ prepares the biomass for fermentation. By pulverising the material, a much larger surface area is created for the bacteria to attack. Rotating chains on the floor of the machine disintegrate the energy crops in seconds. Homoge nous composition is thus achieved in the substrate and it is made into “bite-sized” pieces for the bacteria.
Stable operation, no floating layers
As a result of this process, a considerably more stable operating state is achieved. It is not only possible to pump the processed substrate more easily, energy-intensive mixing periods in the digester can be reduced by more than half. In addition, floating layers disappear after very short periods of time.
A profound difference can also be seen in terms of flexibility. Whether energy crops from the field, household bins full of organic waste, slaughterhouse waste or packaged food – Bio-QZ has proven its suitability for the most diverse plant types. At the same time, the machine is not sensitive to metal parts or stones, and can fully remove any packaging present.
The profitability of plants can be increased by up to 30% with a QZ system, and the machine can also be refitted for integration into existing input and pumping systems.