GPS-X Technical Reference

Influent Models 84
Wastewater Influent Object
The flow rate setup in wastewater influent object is similar to the flow rate setup in other
libraries. The built-in influent advisor also works in a similar way as for the other
libraries. However, a few key differences are with respect to how the stoichiometric
parameters for composite variable calculations are organized and calculated in this
library. In MANTIS2LIB, the stoichiometric parameters are accessed through the
System > Input Parameters >Influent Stoichiometry and
System > Input Parameters >Global Fixed Stoichiometry menus (Figure 5-21). The
stoichiometric parameters available in Influent Stoichiometry and Global Fixed
Stoichiometry are shown in Figure 5-22 and Figure 5-23. The stoichiometric
parameters available in Influent Stoichiometry menu are the parameters which are
influent specific and representative of a composite component of unknown composition.
On the other hand, the stoichiometry parameters available in the Global Fixed
Stoichiometry are parameters which can be calculated based on the chemical
composition (acetic acid, methanol etc.) of the component or some underlying
fundamental estimation procedure. The default values of inorganic fractions (N, P, etc.)
in different type of biomass may be accessed by pressing the More… button on the
Global Fixed Stoichiometry menu (Figure 5-24).
Figure 5-21 - Accessing the Stoichiometry Parameters in MANTIS2LIB
GPS-X Technical Reference