New anaerobic technology for wastewater pre-treatment in the Warstein sewage treatment plant
The new plant for anaerobic wastewater pre-treatment in the Warstein sewage treatment plant has been in successful operation since July. It is equipped with a new Biomar anaerobic reactor developed by EnviroChemie.
In this new biological plant, the brewery wastewater is pre-treated anaerobically, at the same time generating biogas. The installed Biomar AHPx bioreactor is particularly suitable for large quantities of waste water and is designed in such a way that it allows optimum wastewater treatment with the simultaneous generation of biogas in a very compact design.
Following the biological pre-treatment, the brewery wastewater is mixed with municipal wastewater and then further treated.
The technical details of the bioreactor are:
- internal, three-phase high-performance separator
- additional controlled gas vents on two levels
- rinsable distribution system with flow control
- gas injection for the generation of loop flow
The energy-rich biogas is extracted at different heights and from the reactor head. It can be fed to a biogas utilisation system.
At Warstein sewage treatment plant, a gas tank with a volume of approximately 1,500 cubic metres, a new heating system and two new combined heating and power plants for the generation of electricity and heat are available to use the generated biogas.