As seen in Figure 2, the influent flow first goes
through a screening process before entering the
SBR. The waste is then treated in a series of batchphases within the SBR to achieve the desired
effluent concentration. The sludge that is wasted
from the SBR moves on to digestion and eventually
to solids handling, disposal, or beneficial reuse.
The treated effluent then moves to disinfection. An
equalization tank is typically needed before the
disinfection unit in batch SBRs in order to store
large volumes of water. If the flow is not equalized,
a sizable filter may be necessary to accommodate
the large flow of water entering the disinfection
system. In addition, SBR systems typically have no
primary or secondary clarifiers as settling takes
place in the SBR