GPS-X Technical Reference

Influent Models 90
Alkali Dosage Object
The alkali dosage object is only available in the MANTIS2LIB. The alkali dosage object
uses the alkalifeed model (Figure 5-31). The alkali dosage object allows user to select
the type of alkali (base) used in the feed. Six alkalis NaOH, Ca(OH) 2, Mg(OH) 2,
NaHCO 3, CaCO 3 and Na 2CO 3 are available for selection from the Composition > Feed
Chemical Details menu (Figure 5-32). The Feed Chemical Details menu is as shown in
Figure 5-33. For the selected chemical, two input parameters of % purity and density of
chemical solution at the selected %-purity are required. The chemical and corresponding
state variables which are set in the feed are shown in Table 5-5.
Figure 5-31 - Models in Alkali Dosage Influent Object
Figure 5-32 - Accessing Feed Chemical Details Menu
GPS-X Technical Reference