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GPS-X Technical Reference

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91 Influent Models<br />

Figure 5-33 - Selection of Feed Chemical and Setup of Chemical Properties<br />

Table 5-5 - Alkali Chemicals and Affected States in the Feed<br />

Chemical<br />

NaOH,<br />

Ca(OH) 2,<br />

Mg(OH) 2,<br />

NaHCO 3<br />

CaCO 3<br />

Na 2CO 3<br />

Affected States in Feed<br />

sana<br />

sca<br />

smg<br />

sana, stic<br />

sca, stic<br />

sana, stic<br />

The alkali dosage object has a built-in flow rate controller. The controller is useful for<br />

controlling the feed rate of alkali based on a control variable (e.g. pH) in a reactor of<br />

interest.<br />

<strong>GPS</strong>-X <strong>Technical</strong> <strong>Reference</strong>

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