7
During the settlement phase, the batch of liquid is kept in this chamber for a set amount of time
and then expelled from the tank using the clearwater lifter. Simultaneously, the excess sludge
lifter recirculates the excess sludge from the tank back to the primary chamber. Doing so ensures
that there is a constant level of sludge in the primary chamber to feed into the aerated zone.
The clearwater enters the sampling pot before leaving the tank. Doing so allows for the water to
get tested for purity. The remaining treated liquid now meets the required standard to be safely
passed out of the Tricel Vitae unit.
3
Tricel Vitae specification
3.1
Dimensions
Tricel Vitae: certified to EN 12566-3:2005
Tricel Vitae
UK6
Maximum treatment capacity
PE
6
Design flow rate (max)
litres/day
900
BOD load (max)
kg/day
0.36
Primary chamber volume
litres
2630
Nominal Inlet pipe diameter
mm
110
Nominal Outlet pipe diameter
mm
110
Overall length
m
2.6
Overall width
m
1.64
Overall height
m
2.24
Inlet invert to base
m
1.4
Outlet invert to base
m
1.3
Inlet invert to ground level
m
0.51
Outlet invert to ground level
m
0.61
Weight empty**
kg
300
No. of persons
1-6
Air blower rating (mean)
W
86
Thickness (minimum)
mm
5
Desludge period (minimum)***
year
1.5 – 3
No. of Diffusers
Units
1
**
Allow 100kg extra for lifting purposes
***
Depending on use & design value
