Innovative Design Tool For Secondary Settling Tanks And Software For CFD-Simulations
Optimised tank hydraulics are the key to an increase of the capacity of secondary settling tanks. That’s how the effluent quality, mainly suspended solids, COD and phosphorus, can be improved and sludge overflow can be avoided. By using the software hydrograv proload.cfd developed by hydrograv it becomes possible to explore the hydraulic situation in a tank by oneself. Designers of a new tank receive comprehensive support for the geometric layout.
The software dimensions the clarifiers of a waste water treatment plant on its own applying the German design rule ATV-DVWK-Arbeitsblatt A131 and requiring only a few input parameters regarding loadings and general geometric outline. Afterwards own simulations provide the opportunity to refine and to optimise the generated basic geometry. On the basis of the simulation results designers are able to guarantee the tank’s functioning with greater security than if they would only follow the design rule.