MBR DIGESTATE TREATMENT
Key Message
Digestate biological treatment demands a robust technology. External tubular MBR copes with the digestate treatment with maximum efficiency: the bioprocess operates in a stable way, with the best nitrification rates. Berghof tubular membranes provide the smooth and reliable operation required by the operators of biogas plants.
Benefits of digestate treatment with MBR and tubular UF
The MBR consists of a biological reactor combining anoxic and aerobic stages for carbon and nitrogen removal, coupled to the Berghof tubular UF for biomass/effluent separation. This technology for digestate treatment has numerous advantages over the conventional biological processes and the submerged MBRs:
The external tubular MBR for dairy wastewater treatment has numerous advantages over the conventional biological processes and the submerged MBRs:
Highly efficient
Highly efficient biological treatment: the operation at high MLSS concentration (12 – 15 g/L, up to 30 g/L) provides long sludge ages, which intensifies the biological activity and promotes the assimilation of slowly biodegradable organic matter.
Customizable
Berghof Membranes developed B-SMART®, a customizable external membrane filtration system that can be designed with various features and functionalities.
Effluent Quality
Superb effluent quality: the tubular MBR produces a solid-free effluent, with turbidity lower than 0.5 NTU and SDI < 3. It can be further treated with RO systems allowing more than 99% removal for carbon, total solids and nitrogen.
Robustness
Robustness against the complex composition of digestate. The filtration conditions in Berghof tubular UF are easily adapted to influent fluctuations, providing the most stable operation under any circumstance.
Compact and modular
Compactness and modularity: external tubular MBRs are one of the most compact technologies for digestate treatment. UF systems are 100% modular and very easily upgradable.
MBR Digestate treatment - the process
Digestate is the main residual product from biogas plants. The liquid fraction obtained in the decanter is fed to the tubular MBR, where organic matter and nutrients are removed by combining anoxic and aerobic reactors. The external tubular modules coupled to the biological process produce a free-of-solids permeate that can be pos-treated with reverse osmosis. The effluent is therefore discharged, fulfilling the strictest environmental regulations, or it can be reused for irrigation or other industrial purposes.
Manufactured in Germany
Tubular UF Membrane Modules
To prevent fouling and clogging, Berghof Membranes developed its line of robust tubular UF (ultrafiltration) membrane modules based on inside-out crossflow filtration.
Membrane Skid systems
Berghof Membranes developed B-SMART®, a customizable external membrane filtration system that can be designed with various features and functionalities.
Pilot systems & Lab testing
Bridging the gap between lab-scale testing and manufacturing. Our experts gives you the confidence to apply the technology for your specific wastewater challenges.
B-CARE® Service and Support
The B-CARE® program is an end-to-end comprehensive program developed to support our OEM partners from the piloting/engineering phase to operational system monitoring.
Project References
Take a look at our case studies
Water softening | New Material Industry
Project Details
Capacity: 200 m3/d
Membrane: 8mm PVDF, CR
Location: Huguan County (China)
AnMBR & MBR | Dairy Industry
Project Details
Membrane: 8mm, PVDF, backwashable
Capacity: 1,900 m3/day
COD load: 9,000 to 18,000 kg/day
Location: Wisconsin
AnMBR | Creamery
Project Details
Membrane: 8mm, PVDF, backwashable
Capacity: 155 m3/day
BOD load: 1,587 kg/day
Location: Menomonie, Wisconsin
Think outside the box
When it comes to membrane filtration, think outside the box and contact Berghof Membranes today.
More than just a membrane supplier
Contact Berghof Membranes
Get in touch today
International Sales Office:
Agora 4, 8934 CJ Leeuwarden,
The Netherlands
