E-Andrew Sindt Creative Component S11.pdf

Table 4.13- Width adjustment effects on BNR-S1 mode effluent quality aWidth (m) TSS pH cBOD TN NH 3-N NO - 2 -N NO - 3 -N TP COD F. CODDefault Simulator Parametersoriginal, 12.6 5.6 7.0 3.4 7.4 0.3 0.1 4.7 0.3 40.1 33.3corrected, 13.8 5.6 7.0 3.4 7.4 0.3 0.1 4.7 0.3 40.1 33.3Calibrated Simulator Parametersoriginal, 12.6 8.2 7.0 4.1 6.9 1.1 1.2 2.3 1.3 43.0 33.0corrected, 13.8 8.2 7.0 4.1 6.9 1.1 1.2 2.3 1.5 42.9 32.9a concentrations given as mg/L4.5 Effects of COD FractionsIn order to gauge the importance of influent wastewater characterization on the monitored effluentparameters, a comparison between default and calibrated settings for COD fractions was completed.4.5.1 Regular ModeA comparison of effluent concentration obtained from using default COD fractions and COD fractionscalculated using the influent specifier is given in Table 4.14. Effluent parameters that changed by morethan 1.0 mg/L included TP, COD, and filtered COD. The TP concentration increased by 2.0 mg/L for thecalibrated settings, most likely due to the differences in RBCOD fractions. For the regular mode,conditions are not favorable for PAOs. Therefore, the effect of increased RBCOD has no impact onphosphorus uptake by PAOs. In the regular mode, biomass uptake is the primary mode of partialphosphorus removal.Table 4.14- Influent wastewater COD fractions effects on regular mode effluent quality bTSS pH cBOD TN NH 3-N NO 2 - -N NO 3 - -N TP COD F. CODObserved 15.1 6.8 - 19 1.5 3.4 10.5 6 - 26.7Default Simulator ParametersDefault COD fractionsmg/L 8.9 6.9 4.5 7.3 0.0 0.0 4.5 6.8 40.4 29.2% deviation -41 1 -61 -97 -100 -57 13 9Adjusted COD fractionsmg/L 8.8 6.9 4.3 7.6 0.2 0.0 4.6 6.5 37.2 26.3% deviation -41 2 -60 -89 -99 -57 8 -1Calibrated Simulator ParametersDefault COD fractionsmg/L 14.8 6.9 6.2 9.5 1.2 3.8 1.2 7.9 47.8 29.2% difference b -2 1 -50 -18 12 -89 31 9Adjusted COD fractionsmg/L 14.9 6.9 6.0 9.8 1.5 3.7 1.2 5.9 43.9 26.5% deviation -1 2 -49 -3 10 -89 -1 -1b % deviation = [(calculated - observed)/ observed] * 10064