Water and wastewater treatment

Examples of processes we have experience with:

  • Storage/contact tanks
  • Water towers and distribution systems
  • Drinking water reservoirs (e.g. raw water intake ponds)
  • Ion exchange columns
  • Flotation and settling processes
  • Disinfection and oxidation processes
  • Membrane filtration
  • Activated sludge processes
  • Wastewater stabilization ponds
  • Membrane bioreactors
  • Aeration systems
  • Anaerobic digestion
  • Primary and secondary settlers

Typical problems we solve:

  • Improve mixing (e.g. cure dead (stagnant) zones)
  • optimisation of hydraulic residence time (assuring disinfection, preventing regrowth)
  • Limiting byproduct formation
  • Optimisation of gas/liquid transfer (ozonation, aeration)
  • Optimisation of coagulant/flocculant dosing
  • Determination of optimal sensor location
  • Determination of optimal sensor location
  • Improve effluent quality

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

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