At the Rybjerg Biogas plant in Denmark, Landia has installed a BioChop hygienisation unit, which meets the EC-regulation concerning animal by-products not intended for human consumption.

At the Rybjerg Biogas plant in Denmark, Landia has installed a BioChop hygienisation unit, which meets the EC-regulation No 1774/2002 health rule concerning animal by-products not intended for human consumption. A 2.5 m3 Landia BioChop hygienisation unit at Rybjerg adheres to the regulation which states that Category-3 animal by-products must be pasteurised or hygienised at 70C for at least one hour -and that the size of the solid parts must not exceed 12 mm. Landia has also developed a PLC (Programmable Logic Controller) for the control system to regulate all phases of the hygienisation process.

An integrated data logger, which has become an integral part of the Rybjerg biogas plant, registers the hygienisation time and the temperature.

The BioChop can also function as a heat exchanger, making the heated substrate easily pumpable, whilst the chopping of particles to less than 12mm ensures optimum use of the biogas plant reactor tank, resulting in increased gas production.