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GPS-X Technical Reference

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235 Attached-Growth Models<br />

Based on the volume set up method (input 2), the user either specifies the individual<br />

volumes per tank (inputs 3 and 4), or the volume fractions based on the total volumes<br />

(inputs 5, 6 and 7). The latter two items are used to convert the concentration of each<br />

state variable to a volume measurement. Model dimensions include the number of SBC<br />

tanks in series or stages.<br />

Biofilm characteristics include:<br />

Figure 7-12 – Physical Dimension of the SBC<br />

1. Maximum attached liquid film thickness, which refers to the liquid film that is<br />

considered to be associated with the biofilm due to friction (no-slip layer).<br />

2. Maximum biofilm thickness, which will be reached with infinite sloughing<br />

3. Density of biofilm<br />

4. Dry material content of biofilm<br />

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

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