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Optimization of oxygen transfer in the activation, avoiding deposits, optimization of primary and secondary settling tanks, grit channels, digesters and distribution buildings are examples of the successful use of CFD simulation. This ensures a trouble-free operation to identify potential energy savings and improve the turnover potential of the reactors or the processes. Especially in the field of energy savings the potential can be raised with the deep insight offered by the flow simulations, which remained hidden until now.

The hydrograv adapt constructions

With the height-variable inlet structure hydrograv adapt hydrograv successfully solves several problems of the secondary clarification. All hydrograv adapt installations obtain vast improvements of the effluent values – with the retention of phosphorus and particulate COD secondary settling tanks equipped with hydrograv adapt constructions attain the performance of sand filters – in fact at a fraction of the financial, energy and personnel effort of a filtration.

Thanks to the adaptation of the inlet geometry to the respective current optimum secondary settling tanks are simultaneously significantly more durable; the amount of sludge in the aeration tank can be increased. Thus the purification capacity of the entire wastewater treatment plant increases due to hydrograv adapt.

For the efficiency of secondary settling tanks hydrograv adapt defines the current state of the art.