GPS-X Technical Reference

Digestion Models 288
Figure 10-11 - Simplified ADM1 Material Flow Design
In GPS-X, the ADM1 model makes use of an ASM1 to ADM1 interface developed by
Copp et al. (2003). This interface allows ADM1 to be used within a full-plant layout that
uses ASM1 to model activated sludge processes.
When using ADM1 there are two possible scenarios:
The influent stream is represented by an influent object. This case is more
difficult and requires that you specify the influent in the influent object and in the
Influent Form in the digester object. See Figure 10-12 for a graphical
description of this procedure. The section entitled “ADM1 Model Set up
Suggestions” gives suggestions on how to characterize the influent.
The influent stream is an output stream from another object. This case is simpler
as the object that precedes the digester will take care of the characterization of the
stream itself. The user still needs to specify the parameters found in the Influent
form of the digester object. See Figure 10-13 for a graphical description of this
procedure. The section entitled “ADM1 Model Set up Suggestions” gives
suggestions on how to characterize the influent.
GPS-X Technical Reference