Prof. dr. ir. Ingmar Nopens - Ghent University
Dissolved Air Flotation (DAF) has received more attention recently as separation technique in both drinking water production as well as wastewater treatment. However, the process as well as the preceding flocculation step is complex and not completely understood. Therefore, given, the multiphase nature of the process (liquid, gas and floc) research in the field of DAF requires fluid dynamics studies in order to understand and optimize the system in terms of operation and design. The present study simulates the flow patterns inside a large DAF tank (WPC Kluizen, Belgium), employing computational fluid dynamics (CFD) technique.
- To understand the flotation system in terms of operation and design
- To improve effluent turbidities and thereby increase the plants’ treatment capacity.
- Euler-Langrangian approach for multiphase flow analysis in the 2D and 3D DAF systems
- Flocs will be treated as the discrete phase.