The blowers would discharge to the same header. The purpose of having a VFD on the PD blower would be to provide a variable airflow that would be controlled with a dissolved oxygen feedback loop from the aeration basins. At times the PD blower would be able to provide all of the aeration...
I'm looking for the best way to improve energy efficiency for a wastewater treatment plant activated sludge aeration system. The system currently consists of 3 identical constant speed centrifugal blowers (2100 scfm @ 6.0 psig), typically operating 2 at any given time. These can not be turned...
