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GPS-X Technical Reference

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Influent Models 64<br />

NOTE:<br />

Correctly setting up the influent is critically important to the simulation;<br />

therefore, a set of warning messages has been developed, and will appear in the<br />

Command window, when necessary. For instance, if the user inadvertently enters<br />

a value for xsto, but has chosen ASM1 as the local biological model, then a<br />

warning message (`time = xsto is non-zero,<br />

xsto is not a state variable in ASM1') will appear in the Log window. This is<br />

a signal to go back to the influent data forms and correct a problem with the<br />

influent. It is recommended that Influent Advisor be used to debug your influent<br />

characterization. Hydromantis recommends that users make full use of the<br />

Influent Advisor as a tool to help identify problems, and understand the<br />

interconnectivity between state and composite variables.<br />

During a simulation, error messages related to the influent may appear in the simulation Log<br />

window. These messages will most likely be the result of improper influent stoichiometry. If an<br />

error message does appear, then the influent stoichiometry should be examined for possible<br />

errors.<br />

INFLUENT OBJECTS IN CNLIB, CNPLIB, CNIPLIB, CNPIPLIB<br />

There are four (4) influent objects in <strong>GPS</strong>-X:<br />

Table 5-1 – Influent Objects in CNLIB, CNPLIB, CNIPLIB, and CNPIPLIB<br />

Name Object Use Models Available<br />

bodbased,<br />

Wastewater Influent<br />

codfractions<br />

Continuous<br />

codstates<br />

wastewater flows<br />

sludge<br />

(steady or dynamic)<br />

states<br />

tsscod<br />

Batch Influent<br />

COD Chemical<br />

Dosage<br />

Batch deliveries of<br />

septage or other<br />

discontinuous<br />

wastewater flows<br />

Dosage of COD into<br />

streams or objects<br />

bodbased<br />

codfractions<br />

codstates<br />

sludge<br />

states<br />

tsscod<br />

acetate<br />

methanol<br />

water<br />

Water Influent<br />

Clean water input<br />

(steady or dynamic)<br />

water<br />

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

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