GPS-X Technical Reference

165 Suspended Growth Models
The maximum fouling resistance and fouling rate constant can be found in the
Input Parameters > Physical – Membrane > form. They are selected based on data in
Merlo et al. (2000). The model assumes that the fouling material is completely removed
during a recovery clean so that the time for fouling starts after each recovery clean.
Model Parameters – Operational
The membrane operational parameters can be set in the
Input Parameters > Operational – Membrane form, shown in Figure 6-14.
Figure 6-14 – Membrane Operational Parameters Menu
The trans-membrane pressure from Equation 6.1 is set in this menu, along with the
MBR backwashing options (including the frequency, duration and flow rate of the
backwash). Alternatively, the level controller can be used, which sets the backwash
length to the amount of time required to refill the tank. If the level controller is on and
the tank is already full, no backwashing will take place.
GPS-X Technical Reference