Task
We successfully expanded the existing anaerobic plant for the production of biogas for a leading manufacturer of bioethanol. The aim was to utilize the wastewater streams generated in the production process - in particular vapour condensates and mixed wastewater - to generate energy and produce high-quality biogas.
As part of the project, we supplied our ALMA BHU EGSB reactor (Expanded Granular Sludge Bed)which was designed to meet the customer's project-specific requirements. It was designed for a load of 10,000 kg COD per day.
Specification and function of our EGSB reactor
COD load: 10,000 kg/d
Reactor type: Welded EGSB reactor, project-specific design
Material: Stainless steel construction for maximum robustness and corrosion resistance
Volume: approx. 680 m³
Dimensions: Height 24 m, diameter 6 m
Construction: Two-stage design, equipped with spiral staircase, integrated recirculation and distribution system
Technological advantages
Special 3-phase separator: Efficient separation of gas, liquid and biomass
Circular gas collection system in the reactor head: no expansion tank required
Operational safety: no susceptibility to clogging and no foaming
High energy yield: Maximum biogas production thanks to optimized flow control
Customer benefits
With the integration of the new EGSB reactor the bioethanol producer:
Reliably treat production wastewater such as vapor condensates
Economically reduce high loads (10,000 kg COD/d)
Using biogas as renewable energy in your own processes
Increase operational safety and system stability
Conclusion
The successful implementation of this project demonstrates the advantages of the ALMA BHU EGSB reactor for industrial wastewater treatment in bioethanol production. The combination of a customized design, round gas collection system and innovative 3-phase separator made it possible to implement a robust and efficient solution that creates both ecological and economic added value.
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