World's most validated bioreactor CFD model Why our proprietary model is highly accurate, and how we proved it

Introducing: world's most validated WWTP CFD model. Highly reliable.

Many people know CFD, but often question number 1 is: how valid are these simulations? Can we trust the models enough to make decisions based on the outcomes? There is only one way to show the world that our proprietary bioreactor CFD model closely matches reality: compare the simulations to measurements. Our client Waterschap De Dommel gave us the opportunity to execute a globally unique measurement campaign: using a construction crane.

What we measured:

  • Dissolved oxygen concentrations at 99 locations (different depths)
  • Flow velocity measurements at 8 locations along the whole depth
  • These measurements were performed at different aeration settings to challenge the model

Result: world's most extensively validated WWTP CFD model

  • Velocity predictions closely matched reality and the data trend was well described
  • Oxygen measurements closely matched the expected trends
  • We knew from earlier work that large gradients exist, even (especially) in aerated zones (oxygen gradient of 97% along the depth). This was confirmed



Questions about this project?

Improving mixing in large WWTP

CFD Activated Sludge WWTP

Improving aeration in a WWTP

CFD Activated Sludge WWTP

Secondary settler optimisation

Secondary Settler CFD-PBM

Scale-up of a novel MBR reactor

CFD scale-up MBR

Scale-up of a novel ozonation system

CFD Scale-up ozonation

Quantifying N2O emission in WWTP

CFD N2O WWTP Activated sludge

Ion exchange optimisation

Ion Exchange CFD Optimisation

Design of a crystalliser

Crystalliser design CFD struvite

Improving mixing in a water reservoir

Drinking Water Reservoir Flow Pattern

Improving mixing in a water tower

Water tower Flow Pattern