Discontinuous Process
Batch Operation
Anaerobic Digestion with Digestion Tunnels
The discontinuous process uses a number of digestion tunnels. Stackable material is filled insides these tunnels at a staggered schedule.
Operation in Batch Mode
The discontinuous BEKON process operates in batch mode, and its principle is straightforward:
Material Infeed
Organic material is loaded into anaerobic digestion tunnels using a wheel loader or an automated infeed system. In an oxygen-free environment, and with the addition of inoculum from previously fermented material, digestion begins immediately—producing biogas from the start.
Digestion in a Single-Step Process
This is a single-step anaerobic digestion process, meaning that all key biological reactions—hydrolysis, acidification, and methanization—occur within the same phase. The anaerobic digestion tunnels are equipped with essential systems such as aeration, drainage, and heating to ensure optimal process conditions. The number of tunnels is determined by the required annual throughput of material.
The Process
Continuous Generation of Electricity and Heat
The biogas produced is typically used in combined heat and power (CHP) units to generate electricity and heat. To ensure continuous CHP operation, multiple anaerobic digestion tunnels are filled and operated on a staggered schedule. The electricity generated is fed into the power grid and is either sold or compensated under applicable feed-in tariff programs.
District Heating
Only a small portion of the excess heat is needed to run the facility itself. The majority of the heat energy is available for external use—for example, by supplying a local or district heating system or by using it to dry materials.
From Biogas to Compost or Stabilization
After anaerobic digestion, the material is transferred to a composting process for post-treatment—such as a membrane, lane, or tunnel system. Depending on the input material, the digestate is either composted or stabilized.
The natural composting process generates enough heat to sanitize the material, eliminating pathogens and producing a safe, high-quality final product.
Fertilizer Production (Biowaste)
The digestate can be further processed into high-quality compost.
Contact Person
Ignacio Benitez
Phone: +1 8056561409
ignacio(at)eggersmann-recycling.com