Anaerobic digestion CFD simulations for optimal mixing

Anaerobic digester design optimisation using Computational Fluid Dynamics (CFD) accounting for sludge rheology and viscosity. Dead zones and mixing optimisation (impeller type and reactor).

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Questions we answer with CFD

For various customers across the world we simulate anaerobic digestion systems to answer operational and design questions such as:

How do we configure the mixers, and which types?
Can we optimise the reactor design?
Can you analyse our current systems? (in case of mixing problems)

The solutions we offer

We then use the CFD model to test different system improvements on the computer. This is much easier and less risky compared to real-scale testing. We troubleshoot the design and operation and suggest system improvements based on our outcomes.

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Very realistic CFD models

We account for the high viscosity and so-called 'non-newtonian' behaviour of digesters.
Recirculation loops, mixing, real geometries, ... are taken into account

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MBR's / IFAS

CFD-based MBBR and IFAS design

Settling

Secondary settler (clarifier) design optimisation with CFD

Secondary clarifiers (or settlers) can be optimised using computational fluid dynamics (CFD). Inlet structure (energy dissipation well) and sludge removal mechanism can be designed using sludge solids and liquid modelling using density currents.

Final Storage And Disinfectation

Design a drinking water storage basins

Computational fluid dynamics (CFD) was used to design a new drinking water storage basin. We saved CapEx and could avoid dead zones. Final design has optimal plug flow and hydraulic performance.

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