GPS-X Technical Reference

33 GPS-X State Variable Libraries
STATE VARIABLES
Carbon – Nitrogen Library (CNLIB)
Sixteen state variables are available in the Carbon – Nitrogen library (Table 3-1)
Table 3-1 – Carbon – Nitrogen Library (CNLIB) State Variables
State Variables
GPS-X Cryptic
Symbols
Units
1. Soluble inert organics si gCOD/m 3
2. Readily biodegradable (soluble) substrate ss gCOD/m 3
3. Particulate inert organics xi gCOD/m 3
4. Slowly biodegr. (stored, particulate) substrate xs gCOD/m 3
5. Active heterotrophic biomass xbh gCOD/m 3
6. Active autotrophic biomass xba gCOD/m 3
7. Unbiodegradable particulates from cell decay xu gCOD/m 3
8. Cell internal storage product xsto gCOD/m 3
9. Dissolved oxygen so gN/m 3
10. Nitrate and nitrite N sno gN/m 3
11. Free and ionized ammonia snh gN/m 3
12. Soluble biodegradable organic nitrogen (in ss) snd gN/m 3
13. Particulate biodegr. organic nitrogen (in xs) xnd gN/m 3
14. Dinitrogen snn gN/m 3
15. Alkalinity salk mole/m 3
16. Inert inorganic suspended solids xii g/m 3
Industrial Pollutant Library (CNIPLIB)
Forty-six (46) state variables are available in the Industrial Pollutant library. Sixteen (16)
are pre-defined and thirty (30) are user-definable (15 soluble, 15 particulate). They are
listed in Table 3-2.
GPS-X Technical Reference