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Back-Wash
Recirculation
Sedimentation Chamber
Anaerobic Chamber
Aeration Chamber
Storage Chamber
Effluent
Inflow
1
2
3
4
Figure 3 -
Treatment Flow of the Fusion
®
System.
PROCESS DESCRIPTION
1. Sedimentation Chamber
This chamber is designed to physically separate solids
from the incoming water. Scum is the floating material and
sludge is the material that has settled at the bottom.
2. Anaerobic Chamber
This chamber contains a spherical skeleton-type of filter
media, 4.3 inch diameter (109 mm). Through bacterial
growth processes on the surface of the filter media,
biological anaerobic treatment thrives while suspended
solids are captured. Furthermore, the microorganisms
in this chamber convert nitrates in the recirculated water
returning from the aerobic chamber to gaseous nitrogen.
The gaseous nitrogen then escapes to the atmosphere.
3. Aeration Chamber
The aeration chamber consists of an aerated upper section
and a filter media lower section. The chamber is filled with
hollow, cylindrical filter media 0.6 inch diameter (15 mm)
and 0.55 inches long (14 mm). Biological treatment takes
place on the filter media surface. Aeration is continuous.
Residual suspended solids are captured by the filter media
circulating in this section. During normal operation, a
recirculation line transfers water back to the sedimentation
chamber by way of an air lift pump.
The filter media in the aeration chamber are backwashed
regularly (twice a day, 5 or 10 minute cycle) by the backwash
system located at the bottom of the chamber. The
accumulated sludge is transferred by an air lift pump back
into the sedimentation chamber for further digestion.
4. Storage Chamber
This chamber is designed to temporarily store treated water
exiting the aeration chamber. This treated water is ready for
discharge.
