Protec - Bioreactor

The Protec Bioreactors have been specially developed for trains – and to work for a train’s entire service life. The system is certified in accordance with the European TSI LOC&PAS guideline. The Protec Bioreactor’s performance is continually monitored during operation.

• The first stage of the bioreactor process starts in the solids chamber. First of all, the solid components are separated. Biological decomposition processes then reduce the volume of the solid components to a high degree. The key principle behind this process is to reduce the amount of work required for disposal.
• In the fluid reactor, waste water is biologically treated and purified.
• The final step is the physical, thermal hygienisation: the purified fluid is sanitized without using chemicals; this is all monitored using the latest process technology.
• Once the process is complete, the purified waste water is discharged onto the tracks – only when the train is moving.

• Purely biological/physical treatment: no chemicals or foreign matter are used in the process.
• Purified residual water: regular checks ensure that EU guidelines are adhered to.
• The solid residues can be composted or completely and safely disposed of in the sewerage system.
• Disposal intervals: the residual solid components only have to be disposed of every 2–6 months.