E-Andrew Sindt Creative Component S11.pdf

More documents

Recommendations

Info

3.6.2 Calibration of BNR-S1 ModeThe simulator parameter values for the calibrated regular mode were entered in the BNR-S1 setup andthe simulation was run to see how well the simulator predicted effluent quality for the BNR-S1 mode.Effluent parameters requiring correction were noted and a table was setup (Appendix II, Table AII.7) forthe adjustment of simulator parameters required to achieve a more accurate prediction of totalnitrogen, ammonia, nitrite, nitrate, and total phosphorus. However, this time the variations in the threesimulator parameters were by 5% increments (Table 3.7). The simulation run that provided the leastamount of percent error was selected and the maximum Vesilind settling velocity was adjusted toachieve maximum accuracy in TSS prediction. Next, accuracy of ammonia prediction was improved byadjusting the substrate ammonia half saturation concentration for ammonia oxidizing bacteria. Finally,the effluent TP concentration prediction was improved by adjusting the aerobic P/PHA uptake ratio. Alladjusted simulator parameters were selected based on the sensitivity of the effluent characteristics tothe simulator parameters.Table 3.7- Simulation parameters for BNR-S1 mode calibrationVariation Range fromDefault ValueSimulation ParameterLower Upper Increment ofvariationTarget Effluent Parameter(s) cHeterotrophic yield -30% 0 5% NH 3, NO 2, TP, F. COD, TSSAOB max. spec. growth rate -40% -15% 5% NH 3, NO 2, NO 3NOB max spec growth rate -40% -15% 5% TN, NO 2, NO 3, TSSMax. Vesilind settling velocity -30% 0 5% NH 3, NO 2, TP, TSSNH 3 half saturation conc. (AOB) 0 80% 5% NH 3, NO 2, TPP/Ac release ratio (PAO) 0 30% 5% TPc bold denotes primary target effluent parameter for specific simulation parameter3.7 Analysis of BNR-S2 modeCalibrated simulator parameter values for the BNR-S1 mode were entered into the BNR-S2 setup andthe simulation was run. The ability of the simulator to predict effluent quality using calibrated BNR-S1simulator parameter values in the BNR-S2 setup was assessed.3.8 Effect of WidthThe implications of an error in the width of the SBR as it was defined in BioWin were investigated inorder to determine if modeling data obtained up to that was still representative of the SBR. Data fromthe SBR with the initial width (12.6 m) was compared with data obtained using the corrected width (13.8m).40
3.9 Effect of COD FractionsThe influent specifier was used to calculate COD fractions which were then entered into the BioWinsimulator in order to better define the wastewater flow at Grundy Center. An analysis was performed inorder to better understand the implications of the calculated fractions compared to default values.3.10 BNR-S1 Cycle OptimizationAn analysis was completed on the BNR-S1 mode to investigate the effects of varying the duration of theanaerobic, anoxic, and oxic periods on effluent TN and TP concentrations. The total cycle time and filltime were held constant at 6 hours and 3 hours, respectively. SRT was maintained at 13 days and solidswasting continued to occur in the last 10 minutes of the mixed oxic period. Variations in cycle phaseduration time were made in pairs: anaerobic and oxic; anoxic and oxic. An increase in one period lengthresulted in an equal and opposite decrease in length of the other period’s length. This was completedfor both default and calibrated simulator parameter settings for BNR-S1 mode.41
Page 1 and 2: Prediction of nutrient removal with
Page 3 and 4: Table of ContentsList of Figures ..
Page 5 and 6: 3.9 Effect of COD Fractions .......
Page 7 and 8: List of FiguresFigure 2.1- Biomass
Page 9 and 10: Figure AI.14- D.O. set point itiner
Page 11 and 12: Table AI.1- Influent specifier inpu
Page 13 and 14: Chapter 1: Introduction1.1 Importan
Page 15 and 16: Chapter 2: Literature Review2.1 Nut
Page 17 and 18: has a very low cBOD concentration a
Page 19 and 20: dissolved oxygen (D.O.) at a suffic
Page 21 and 22: Denitrification using biomass decay
Page 23 and 24: Figure 2.7- Phoredox process (Rittm
Page 25 and 26: increased the mean volatile fatty a
Page 27 and 28: used model is the Activated Sludge
Page 29 and 30: conditions included a discrete fill
Page 31 and 32: 3.1 Wastewater Treatment Plant Desc
Page 33 and 34: BNR-S2 operated with 1.5 hours simu
Page 35 and 36: Effluent 7.2 35 7.8 3.5 0.8 0.8 1.9
Page 37 and 38: constant width of 12.6 m over this
Page 39: Table 3.5- Sensitivity Parameters f
Page 44 and 45: Chapter 4 Results and Discussion4.1
Page 46 and 47: include 24-hour composite samples t
Page 48 and 49: Perecent deviation (predicted - obs
Page 50 and 51: Percent deviation (predicted-observ
Page 52 and 53: Percent deviaton in value (model-ob
Page 54 and 55: Percent deviation in value (modelob
Page 56 and 57: 4.2.2.2 Aerobic P/PHA uptake and P/
Page 58 and 59: Calibrated simulator parameters for
Page 60 and 61: Sum absolute value of percent devia
Page 62 and 63: Absolute value of percent deviation
Page 64 and 65: Table 4.10- BNR-S2 colder (15.7 o C
Page 66 and 67: Table 4.13- Width adjustment effect
Page 68 and 69: Percent removala linear trend from
Page 70 and 71: Chapter 5: Conclusion5.1 SummaryBio
Page 72 and 73: Chapter 6: ReferencesAlleman, J.E.,
Page 74 and 75: Libra, R. D., Wolter, C. F., and La
Page 76 and 77: Appendix IBioWin Simulation Setup74
Page 78 and 79: Figure AI.2 - Influent specifier fr
Page 80 and 81: Figure AI.5 - Influent specifier fr
Page 82 and 83: Figure AI.9 - SBR operation page fo
Page 84 and 85: Figure AI.13 - SBR operation page f
Page 86 and 87: Appendix IISelected BioWin Simulati
Page 88 and 89: Table AII.1- Percent deviation from
Page 90 and 91: Table AII.2- Percent deviation from
Page 92 and 93:
Sum absolute value of percent devia
Page 94 and 95:
AOB and NOB maximum specific growth
Page 96 and 97:
Appendix IIIMonthly Monitoring Repo
Page 98 and 99:
DAYIrrig.1000'sGPDInfluentNH3-Nmg/L
Page 100 and 101:
D RAIN- SETT. RECYCLE Irrig.1000' I
Page 102 and 103:
D RAIN- SETT. RECYCLE Irrig.1000' I
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
106
Page 110 and 111:
108
Page 112 and 113:
110
Page 114 and 115:
112
Page 116 and 117:
114
Page 118 and 119:
116
Page 120 and 121:
118
Page 122 and 123:
120
Page 124 and 125:
122
Page 126 and 127:
124
Page 128 and 129:
126
Page 130 and 131:
128
Page 132 and 133:
130
Page 134 and 135:
132
Page 136 and 137:
134
Page 138 and 139:
136
show all

E-Andrew Sindt Creative Component S11.pdf

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?