Total average sludge production per day = 3056.6096 kg/d Aeration energy = 13570.2578 kWh/d
Average pumping energy (for Qintr, Qr and Qw) = 3971.0281 kWh/d The maximum effluent ammonia nitrogen level (4 mg N/l) was violated during 0.5625 days, i.e. 8.0357% of the operating time.
The limit was violated at 5 different occasions.
3HUIRUPDQFHRIDFWLYHFRQWUROOHUVGXULQJGD\WR
1LWUDWHFRQWUROOHUIRUVHFRQGDQR[LFUHDFWRU
Integral of absolute error (IAE) = 1.4191 (mg N/l)*d Integral of square error (ISE) = 0.4741 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 0.97952 mg N/l Standard deviation of error = 0.25975 mg N/l
Variance of error = 0.067472 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Ext. carbon) = 2400000 gCOD/d Standard deviation of manipulated variable (Ext. carbon) = 117083.2063 gCOD/d
Variance of manipulated variable (Ext. carbon) = 13708477202.17 (gCOD/d)^2
2[\JHQ VODYH FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 0.73571 (mg (-COD)/l)*d Integral of square error (ISE) = 0.15306 (mg (-COD)/l)^2*d
Maximum absolute deviation from oxygen setpoint = 0.58412 mg (-COD)/l Standard deviation of error = 0.14769 mg (-COD)/l
Variance of error = 0.021813 (mg (-COD)/l)^2
Maximum absolute variation of manipulated variable (max-min)(KLa) = 408.1879 1/d Standard deviation of manipulated variable (KLa) = 9.5715 1/d
Variance of manipulated variable (KLa) = 91.6131 (1/d)^2
$PPRQLXP PDVWHU FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 6.5904 (mg N/l)*d Integral of square error (ISE) = 16.7078 (mg N/l)^2*d
Maximum absolute deviation from ammonia setpoint = 6.9622 mg N/l Standard deviation of error = 1.5374 mg N/l
Variance of error = 2.3636 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(SOref) = 3.5371 mg (-COD)/l Standard deviation of manipulated variable (SOref) = 0.065276 mg (-COD)/l
Variance of manipulated variable (SOref) = 0.0042609 (mg (-COD)/l)^2
1LWUDWHFRQWUROOHUIRUODVWUHDFWRU
Integral of absolute error (IAE) = 5.0617 (mg N/l)*d Integral of square error (ISE) = 6.1326 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 2.3525 mg N/l Standard deviation of error = 0.92347 mg N/l
Variance of error = 0.85279 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Qa) = 55891.3752 m^3/d Standard deviation of manipulated variable (Qa) = 3528.1304 m^3/d
Variance of manipulated variable (Qa) = 12447703.9518 (m^3/d)^2
Variance of error = 0.22265 (nb)^2
Maximum absolute variation of manipulated variable (max-min)(Qw) = 400 m^3/d Standard deviation of manipulated variable (Qw) = 4.7303 m^3/d
Variance of manipulated variable (Qw) = 22.3754 (m^3/d)^2
)5DLQLQIOXHQW
2YHUDOOSODQWSHUIRUPDQFHGXULQJGD\WR
(IIOXHQWDYHUDJHFRQFHQWUDWLRQVEDVHGRQORDG
Effluent average flow rate = 23902.7208 m3/d Effluent average SI conc = 22.8976 mg COD/l Effluent average SS conc = 0.94596 mg COD/l Effluent average XI conc = 5.4768 mg COD/l Effluent average XS conc = 0.30678 mg COD/l Effluent average XBH conc = 14.3768 mg COD/l Effluent average XBA conc = 0.63844 mg COD/l Effluent average XP conc = 2.675 mg COD/l Effluent average SO conc = 4.1924 mg (-COD)/l Effluent average SNO conc = 6.057 mg N/l
Effluent average SNH conc = 2.0586 mg N/l (limit = 4 mg N/l) Effluent average SND conc = 0.7445 mg N/l
Effluent average XND conc = 0.021595 mg N/l Effluent average SALK conc = 4.9937 mol HCO3/m3
Effluent average TSS conc = 17.6054 mg/l (limit = 30 mg COD/l) Effluent average Kjeldahl N conc = 4.515 mg N/l
Effluent average total N conc = 10.572 mg N/l (limit = 18 mg COD/l)
Effluent average total COD conc = 47.3174 mg COD/l (limit = 100 mg COD/l) Effluent average BOD5 conc = 3.7667 mg/l (limit = 10 mg/l)
(IIOXHQWDYHUDJHORDG
Effluent average SI load = 547.3154 kg COD/day Effluent average SS load = 22.6111 kg COD/day Effluent average XI load = 130.9114 kg COD/day Effluent average XS load = 7.3328 kg COD/day Effluent average XBH load = 343.6437 kg COD/day Effluent average XBA load = 15.2604 kg COD/day Effluent average XP load = 63.9403 kg COD/day Effluent average SO load = 100.2096 kg (-COD)/day Effluent average SNO load = 144.7784 kg N/day Effluent average SNH load = 49.2051 kg N/day Effluent average SND load = 17.7955 kg N/day Effluent average XND load = 0.51617 kg N/day
Effluent average SALK load = 119.3637 kmol HCO3/day Effluent average TSS load = 420.8164 kg/day
Effluent average Kjeldahl N load = 107.9202 kg N/d Effluent average total N load = 252.6986 kg N/d Effluent average total COD load = 1131.0151 kg COD/d Effluent average BOD5 load = 90.0339 kg/d
8 10 12 14 8
10 12 14 16 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
40 50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6 7
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
1000 1500 2000 2500 3000 3500 4000 4500
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
1500 2000 2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
x 104
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file raininfluent is simulated.2WKHUHIIOXHQWTXDOLW\YDULDEOHV
Effluent Quality (E.Q.) index = 7206.6875 g/d
To compare: Influent Quality (I.Q.) index = 37649.0558 g/d, BOD5factor=0.25 To compare: Influent Quality (I.Q.) index = 42042.8148 g/d, BOD5factor=0.65 Sludge production for disposal = 18304.9135 kg
Average sludge production for disposal per day = 2614.9876 kg/d Sludge production released into effluent = 2945.7149 kg
Average sludge production released into effluent per day = 420.8164 kg/d Total sludge production = 21250.6284 kg
Total average sludge production per day = 3035.8041 kg/d
Aeration energy = 14243.2094 kWh/d
Average pumping energy (for Qintr, Qr and Qw) = 3723.6373 kWh/d The maximum effluent ammonia nitrogen level (4 mg N/l) was violated during 0.80208 days, i.e. 11.4583% of the operating time.
The limit was violated at 5 different occasions.
3HUIRUPDQFHRIDFWLYHFRQWUROOHUVGXULQJGD\WR
1LWUDWHFRQWUROOHUIRUVHFRQGDQR[LFUHDFWRU
Integral of absolute error (IAE) = 1.6858 (mg N/l)*d Integral of square error (ISE) = 0.66608 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 0.95042 mg N/l Standard deviation of error = 0.30847 mg N/l
Variance of error = 0.095153 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Ext. carbon) = 2400000 gCOD/d Standard deviation of manipulated variable (Ext. carbon) = 107623.9092 gCOD/d
Variance of manipulated variable (Ext. carbon) = 11582905842.1724 (gCOD/d)^2
2[\JHQ VODYH FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 0.63831 (mg (-COD)/l)*d Integral of square error (ISE) = 0.12085 (mg (-COD)/l)^2*d
Maximum absolute deviation from oxygen setpoint = 0.5423 mg (-COD)/l Standard deviation of error = 0.13139 mg (-COD)/l
Variance of error = 0.017264 (mg (-COD)/l)^2
Maximum absolute variation of manipulated variable (max-min)(KLa) = 405.1439 1/d Standard deviation of manipulated variable (KLa) = 9.0855 1/d
Variance of manipulated variable (KLa) = 82.5459 (1/d)^2
$PPRQLXP PDVWHU FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 8.5763 (mg N/l)*d Integral of square error (ISE) = 26.6503 (mg N/l)^2*d
Maximum absolute deviation from ammonia setpoint = 7.5144 mg N/l Standard deviation of error = 1.8645 mg N/l
Variance of error = 3.4765 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(SOref) = 3.4877 mg (-COD)/l Standard deviation of manipulated variable (SOref) = 0.060669 mg (-COD)/l
Variance of manipulated variable (SOref) = 0.0036807 (mg (-COD)/l)^2
1LWUDWHFRQWUROOHUIRUODVWUHDFWRU
Integral of absolute error (IAE) = 4.0285 (mg N/l)*d Integral of square error (ISE) = 4.06 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 2.3408 mg N/l Standard deviation of error = 0.76066 mg N/l
Variance of error = 0.5786 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Qa) = 81308.0456 m^3/d Standard deviation of manipulated variable (Qa) = 4407.5333 m^3/d
Variance of manipulated variable (Qa) = 19426350.0699 (m^3/d)^2
6OXGJHEODQNHWKHLJKWFRQWUROOHUIRUVHWWOHU
Integral of absolute error (IAE) = 4.0625 (nb)*d Integral of square error (ISE) = 5.6875 (nb)^2*d Maximum absolute deviation from layer setpoint = 2 nb Standard deviation of error = 0.83983 nb
Variance of error = 0.70532 (nb)^2
Maximum absolute variation of manipulated variable (max-min)(Qw) = 400 m^3/d Standard deviation of manipulated variable (Qw) = 4.5635 m^3/d
Variance of manipulated variable (Qw) = 20.8258 (m^3/d)^2
)6WRUPLQIOXHQW
2YHUDOOSODQWSHUIRUPDQFHGXULQJGD\WR
(IIOXHQWDYHUDJHFRQFHQWUDWLRQVEDVHGRQORDG
Effluent average flow rate = 20703.1995 m3/d Effluent average SI conc = 26.333 mg COD/l Effluent average SS conc = 0.9439 mg COD/l Effluent average XI conc = 5.4307 mg COD/l Effluent average XS conc = 0.296 mg COD/l Effluent average XBH conc = 13.5165 mg COD/l Effluent average XBA conc = 0.58449 mg COD/l Effluent average XP conc = 2.4972 mg COD/l Effluent average SO conc = 4.0614 mg (-COD)/l Effluent average SNO conc = 6.0753 mg N/l
Effluent average SNH conc = 1.7697 mg N/l (limit = 4 mg N/l) Effluent average SND conc = 0.74593 mg N/l
Effluent average XND conc = 0.021221 mg N/l Effluent average SALK conc = 4.7141 mol HCO3/m3
Effluent average TSS conc = 16.7436 mg/l (limit = 30 mg COD/l) Effluent average Kjeldahl N conc = 4.1406 mg N/l
Effluent average total N conc = 10.2159 mg N/l (limit = 18 mg COD/l) Effluent average total COD conc = 49.6018 mg COD/l (limit = 100 mg COD/l) Effluent average BOD5 conc = 3.5532 mg/l (limit = 10 mg/l)
(IIOXHQWDYHUDJHORDG
Effluent average SI load = 545.178 kg COD/day Effluent average SS load = 19.5418 kg COD/day Effluent average XI load = 112.4326 kg COD/day Effluent average XS load = 6.1281 kg COD/day Effluent average XBH load = 279.8341 kg COD/day Effluent average XBA load = 12.1008 kg COD/day Effluent average XP load = 51.7003 kg COD/day Effluent average SO load = 84.0842 kg (-COD)/day Effluent average SNO load = 125.7779 kg N/day Effluent average SNH load = 36.6393 kg N/day Effluent average SND load = 15.4432 kg N/day Effluent average XND load = 0.43934 kg N/day
Effluent average SALK load = 97.5979 kmol HCO3/day Effluent average TSS load = 346.6469 kg/day
Effluent average Kjeldahl N load = 85.7247 kg N/d Effluent average total N load = 211.5025 kg N/d Effluent average total COD load = 1026.9157 kg COD/d Effluent average BOD5 load = 73.5625 kg/d
8 10 12 14 8
10 12 14 16 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
40 50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
1000 1500 2000 2500 3000 3500 4000 4500
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
0.5 1 1.5 2 2.5
x 104
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
1000 1500 2000 2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
x 104
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file storminfluent is simulated.2WKHUHIIOXHQWTXDOLW\YDULDEOHV
Effluent Quality (E.Q.) index = 6097.3852 g/d
To compare: Influent Quality (I.Q.) index = 39201.2759 g/d, BOD5factor=0.25 To compare: Influent Quality (I.Q.) index = 43758.1148 g/d, BOD5factor=0.65 Sludge production for disposal = 20745.9621 kg
Average sludge production for disposal per day = 2963.7089 kg/d Sludge production released into effluent = 2426.5284 kg
Average sludge production released into effluent per day = 346.6469 kg/d Total sludge production = 23172.4905 kg
Total average sludge production per day = 3310.3558 kg/d
Aeration energy = 14564.8783 kWh/d
Average pumping energy (for Qintr, Qr and Qw) = 3869.4245 kWh/d The maximum effluent ammonia nitrogen level (4 mg N/l) was violated during 0.90625 days, i.e. 12.9464% of the operating time.
The limit was violated at 6 different occasions.
The maximum effluent total suspended solids level (30 mg/l) was violated during 0.09375 days, i.e. 1.3393% of the operating time.
The limit was violated at 2 different occasions.
3HUIRUPDQFHRIDFWLYHFRQWUROOHUVGXULQJGD\WR
1LWUDWHFRQWUROOHUIRUVHFRQGDQR[LFUHDFWRU
Integral of absolute error (IAE) = 1.6822 (mg N/l)*d Integral of square error (ISE) = 0.6996 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 0.95281 mg N/l Standard deviation of error = 0.31608 mg N/l
Variance of error = 0.099907 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Ext. carbon) = 2400000 gCOD/d Standard deviation of manipulated variable (Ext. carbon) = 122941.3033 gCOD/d
Variance of manipulated variable (Ext. carbon) = 15114564062.9133 (gCOD/d)^2
2[\JHQ VODYH FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 0.75235 (mg (-COD)/l)*d Integral of square error (ISE) = 0.15556 (mg (-COD)/l)^2*d
Maximum absolute deviation from oxygen setpoint = 0.58806 mg (-COD)/l Standard deviation of error = 0.14894 mg (-COD)/l
Variance of error = 0.022182 (mg (-COD)/l)^2
Maximum absolute variation of manipulated variable (max-min)(KLa) = 405.1787 1/d Standard deviation of manipulated variable (KLa) = 9.7396 1/d
Variance of manipulated variable (KLa) = 94.8599 (1/d)^2
$PPRQLXP PDVWHU FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 7.8894 (mg N/l)*d Integral of square error (ISE) = 23.9183 (mg N/l)^2*d
Maximum absolute deviation from ammonia setpoint = 7.3142 mg N/l Standard deviation of error = 1.7907 mg N/l
Variance of error = 3.2065 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(SOref) = 3.4877 mg (-COD)/l Standard deviation of manipulated variable (SOref) = 0.062996 mg (-COD)/l
Variance of manipulated variable (SOref) = 0.0039685 (mg (-COD)/l)^2
1LWUDWHFRQWUROOHUIRUODVWUHDFWRU
Integral of absolute error (IAE) = 5.0701 (mg N/l)*d Integral of square error (ISE) = 5.9616 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 2.3408 mg N/l Standard deviation of error = 0.91674 mg N/l
Variance of error = 0.84042 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Qa) = 86633.8478 m^3/d Standard deviation of manipulated variable (Qa) = 3848.6074 m^3/d
Variance of manipulated variable (Qa) = 14811778.6518 (m^3/d)^2
6OXGJHEODQNHWKHLJKWFRQWUROOHUIRUVHWWOHU
Integral of absolute error (IAE) = 2.9896 (nb)*d Integral of square error (ISE) = 4.1354 (nb)^2*d
Maximum absolute deviation from layer setpoint = 3 nb Standard deviation of error = 0.72099 nb
Variance of error = 0.51982 (nb)^2
Maximum absolute variation of manipulated variable (max-min)(Qw) = 400 m^3/d Standard deviation of manipulated variable (Qw) = 4.6947 m^3/d
Variance of manipulated variable (Qw) = 22.0403 (m^3/d)^2
)3ORWVIURPVLPXODWLRQVZLWKDFRQVWDQWH[FHVVVOXGJHIORZUDWH
These plots should be compared to the plots in section ? where variable excess sludge flowrate is used. The appendix material for the simulations with constant excess sludge flowrate is not complete. Only the plots are shown here.
0 2 4 6 8 10 12 14
0 2 4 6 8
SNH,5 [g/m3]
0 2 4 6 8 10 12 14
384 384.5 385 385.5 386
Qw [m3/d]
Time [days]
0 2 4 6 8 10 12 14
2 2.5 3
Lnb [nb]
)LJXUH
Effluent ammonia concentration, sludge blanket height in settler and excess sludge flowrate.The file dryinfluent was simulated with noise and delay on the sensors.
0 2 4 6 8 10 12 14 0
2 4 6 8
SNH,5 [g/m3]
0 2 4 6 8 10 12 14
384 384.5 385 385.5 386
Qw [m3/d]
Time [days]
0 2 4 6 8 10 12 14
2 2.5 3 3.5 4
Lnb [nb]
)LJXUH
Effluent ammonia concentration, sludge blanket height in settler and excess sludge flowrate.The file raininfluent was simulated with noise and delay on the sensors.
0 2 4 6 8 10 12 14
0 2 4 6 8
SNH,5 [g/m3]
0 2 4 6 8 10 12 14
384 384.5 385 385.5 386
Qw [m3/d]
Time [days]
0 2 4 6 8 10 12 14
2 3 4 5
Lnb [nb]
)LJXUH
Effluent ammonia concentration, sludge blanket height in settler and excess sludge flowrate.The file storminfluent was simulated with noise and delay on the sensors.
8 10 12 14 9
10 11 12 13 14 15 16 17 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
2600 2700 2800 2900 3000 3100 3200
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
2000 3000 4000 5000 6000 7000 8000 9000 10000
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
x 104
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file dryinfluent is simulated.8 10 12 14 9
10 11 12 13 14 15 16 17 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
40 50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6 7 8
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
2500 3000 3500
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
1500 2000 2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
x 104
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
: Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file raininfluent is simulated.8 10 12 14 9
10 11 12 13 14 15 16 17 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
40 50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6 7
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
2600 2800 3000 3200 3400 3600
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
0.5 1 1.5 2 2.5
x 104
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
1000 1500 2000 2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
x 104
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
: Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file storminfluent is simulated.)7RWDOVXVSHQGHGVROLGVFRQFHQWUDWLRQLQWKHZHDWKHUILOHV
Total suspended solids (TSS) is estimated according to the following formula:
( ) W ; ( ) W ; ( ) W ; ( ) W ; ( ) W ; ( ) W
766 =
6+
,+
%++
%$+
30 2 4 6 8 10 12 14 100
150 200 250 300 350
Time [days]
TSSDRY [g/m3]
)LJXUH
Total suspended solids in the weather file dryinfluent.0 2 4 6 8 10 12 14
0 50 100 150 200 250 300 350
Time [days]
TSSRAIN [g/m3]
)LJXUH
Total suspended solids in the weather file raininfluent.0 2 4 6 8 10 12 14 0
100 200 300 400 500 600 700
Time [days]
TSSSTORM [g/m3]
)LJXUH
Total suspended solids in the weather file storminfluent.* )LQDOSODQWFRQILJXUDWLRQ
Plant and controller performance during the second week for all three weather files, when the external carbon controller, the supervisory DO controller, the internal recycling controller and the sludge blanket height controller are implemented.
*'U\LQIOXHQW
2YHUDOOSODQWSHUIRUPDQFHGXULQJGD\WR
(IIOXHQWDYHUDJHFRQFHQWUDWLRQVEDVHGRQORDG
Effluent average flow rate = 18216.9716 m3/d Effluent average SI conc = 30 mg COD/l Effluent average SS conc = 0.89666 mg COD/l Effluent average XI conc = 4.7266 mg COD/l Effluent average XS conc = 0.23444 mg COD/l Effluent average XBH conc = 11.8551 mg COD/l Effluent average XBA conc = 0.5605 mg COD/l Effluent average XP conc = 2.3376 mg COD/l Effluent average SO conc = 2.7837 mg (-COD)/l Effluent average SNO conc = 6.0792 mg N/l
Effluent average SNH conc = 1.9251 mg N/l (limit = 4 mg N/l) Effluent average SND conc = 0.70613 mg N/l
Effluent average XND conc = 0.016807 mg N/l Effluent average SALK conc = 4.4497 mol HCO3/m3
Effluent average TSS conc = 14.7857 mg/l (limit = 30 mg COD/l) Effluent average Kjeldahl N conc = 4.0651 mg N/l
Effluent average total N conc = 10.1443 mg N/l (limit = 18 mg COD/l) Effluent average total COD conc = 50.6109 mg COD/l (limit = 100 mg COD/l) Effluent average BOD5 conc = 3.1384 mg/l (limit = 10 mg/l)
(IIOXHQWDYHUDJHORDG
Effluent average SI load = 546.5091 kg COD/day Effluent average SS load = 16.3344 kg COD/day Effluent average XI load = 86.1047 kg COD/day Effluent average XS load = 4.2709 kg COD/day Effluent average XBH load = 215.9646 kg COD/day Effluent average XBA load = 10.2106 kg COD/day Effluent average XP load = 42.5831 kg COD/day Effluent average SO load = 50.7101 kg (-COD)/day Effluent average SNO load = 110.7454 kg N/day Effluent average SNH load = 35.0689 kg N/day Effluent average SND load = 12.8635 kg N/day Effluent average XND load = 0.30618 kg N/day
Effluent average SALK load = 81.0603 kmol HCO3/day Effluent average TSS load = 269.3504 kg/day
Effluent average Kjeldahl N load = 74.0539 kg N/d Effluent average total N load = 184.7993 kg N/d Effluent average total COD load = 921.9774 kg COD/d Effluent average BOD5 load = 57.1716 kg/d
8 10 12 14 8
10 12 14 16 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
1000 1500 2000 2500 3000 3500 4000
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
2000 3000 4000 5000 6000 7000 8000 9000
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
5500 6000 6500 7000 7500 8000 8500
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file dryinfluent is simulated.2WKHUHIIOXHQWTXDOLW\YDULDEOHV
Effluent Quality (E.Q.) index = 5271.0069 g/d
To compare: Influent Quality (I.Q.) index = 37649.0558 g/d, BOD5factor=0.25 To compare: Influent Quality (I.Q.) index = 42042.8148 g/d, BOD5factor=0.65 Sludge production for disposal = 18629.6844 kg
Average sludge production for disposal per day = 2661.3835 kg/d Sludge production released into effluent = 1885.4527 kg
Average sludge production released into effluent per day = 269.3504 kg/d Total sludge production = 20515.1371 kg
Total average sludge production per day = 2930.7339 kg/d Aeration energy = 8126.9056 kWh/d
Average pumping energy (for Qintr, Qr and Qw) = 3972.6376 kWh/d The maximum effluent ammonia nitrogen level (4 mg N/l) was violated during 0.9375 days, i.e. 13.3929% of the operating time.
The limit was violated at 5 different occasions.
3HUIRUPDQFHRIDFWLYHFRQWUROOHUVGXULQJGD\WR
1LWUDWHFRQWUROOHUIRUVHFRQGDQR[LFUHDFWRU
Integral of absolute error (IAE) = 1.3662 (mg N/l)*d Integral of square error (ISE) = 0.43691 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 0.64443 mg N/l Standard deviation of error = 0.24978 mg N/l
Variance of error = 0.062388 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Ext. carbon) = 2400000 gCOD/d Standard deviation of manipulated variable (Ext. carbon) = 96837.6574 gCOD/d
Variance of manipulated variable (Ext. carbon) = 9377531897.4893 (gCOD/d)^2
2[\JHQ VODYH FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 9.7121 (mg (-COD)/l)*d Integral of square error (ISE) = 24.1217 (mg (-COD)/l)^2*d
Maximum absolute deviation from oxygen setpoint = 3.3913 mg (-COD)/l Standard deviation of error = 1.2628 mg (-COD)/l
Variance of error = 1.5946 (mg (-COD)/l)^2
Maximum absolute variation of manipulated variable (max-min)(KLa) = 136.3893 1/d Standard deviation of manipulated variable (KLa) = 5.405 1/d
Variance of manipulated variable (KLa) = 29.2136 (1/d)^2
$PPRQLXP PDVWHU FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 8.5921 (mg N/l)*d Integral of square error (ISE) = 27.3369 (mg N/l)^2*d
Maximum absolute deviation from ammonia setpoint = 7.4141 mg N/l Standard deviation of error = 1.8875 mg N/l
Variance of error = 3.5625 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(SOref) = 2.7528 mg (-COD)/l Standard deviation of manipulated variable (SOref) = 0.056292 mg (-COD)/l
Variance of manipulated variable (SOref) = 0.0031688 (mg (-COD)/l)^2
1LWUDWHFRQWUROOHUIRUODVWUHDFWRU
Integral of absolute error (IAE) = 2.5433 (mg N/l)*d Integral of square error (ISE) = 1.3937 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 1.2809 mg N/l Standard deviation of error = 0.44588 mg N/l
Variance of error = 0.1988 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Qa) = 56198.317 m^3/d Standard deviation of manipulated variable (Qa) = 3394.0755 m^3/d
Variance of manipulated variable (Qa) = 11519748.7268 (m^3/d)^2
6OXGJHEODQNHWKHLJKWFRQWUROOHUIRUVHWWOHU
Integral of absolute error (IAE) = 1.4896 (nb)*d Integral of square error (ISE) = 1.4896 (nb)^2*d Maximum absolute deviation from layer setpoint = 1 nb Standard deviation of error = 0.46061 nb
Variance of error = 0.21216 (nb)^2
Maximum absolute variation of manipulated variable (max-min)(Qw) = 400 m^3/d Standard deviation of manipulated variable (Qw) = 4.7636 m^3/d
Variance of manipulated variable (Qw) = 22.6922 (m^3/d)^2
*5DLQLQIOXHQW
2YHUDOOSODQWSHUIRUPDQFHGXULQJGD\WR
(IIOXHQWDYHUDJHFRQFHQWUDWLRQVEDVHGRQORDG
Effluent average flow rate = 23875.8677 m3/d Effluent average SI conc = 22.8991 mg COD/l Effluent average SS conc = 0.97461 mg COD/l Effluent average XI conc = 5.6908 mg COD/l Effluent average XS conc = 0.31052 mg COD/l Effluent average XBH conc = 14.0497 mg COD/l Effluent average XBA conc = 0.6581 mg COD/l Effluent average XP conc = 2.7269 mg COD/l Effluent average SO conc = 3.0872 mg (-COD)/l Effluent average SNO conc = 5.9646 mg N/l
Effluent average SNH conc = 2.5133 mg N/l (limit = 4 mg N/l) Effluent average SND conc = 0.75612 mg N/l
Effluent average XND conc = 0.021778 mg N/l Effluent average SALK conc = 5.0327 mol HCO3/m3
Effluent average TSS conc = 17.577 mg/l (limit = 30 mg COD/l) Effluent average Kjeldahl N conc = 4.9729 mg N/l
Effluent average total N conc = 10.9375 mg N/l (limit = 18 mg COD/l) Effluent average total COD conc = 47.3097 mg COD/l (limit = 100 mg COD/l) Effluent average BOD5 conc = 3.7041 mg/l (limit = 10 mg/l)
(IIOXHQWDYHUDJHORDG
Effluent average SI load = 546.7359 kg COD/day Effluent average SS load = 23.2698 kg COD/day Effluent average XI load = 135.8733 kg COD/day Effluent average XS load = 7.4139 kg COD/day Effluent average XBH load = 335.4479 kg COD/day Effluent average XBA load = 15.7128 kg COD/day Effluent average XP load = 65.1066 kg COD/day Effluent average SO load = 73.7092 kg (-COD)/day Effluent average SNO load = 142.4093 kg N/day Effluent average SNH load = 60.008 kg N/day Effluent average SND load = 18.0531 kg N/day Effluent average XND load = 0.51998 kg N/day
Effluent average SALK load = 120.1601 kmol HCO3/day Effluent average TSS load = 419.6658 kg/day
Effluent average Kjeldahl N load = 118.7327 kg N/d Effluent average total N load = 261.142 kg N/d
Effluent average total COD load = 1129.5601 kg COD/d Effluent average BOD5 load = 88.4379 kg/d
8 10 12 14 8
10 12 14 16 18
time (days)
(mg N/l)
Effluent total nitrogen and limit value
8 10 12 14
40 50 60 70 80 90 100
time (days)
(mg COD/l)
Effluent total COD and limit value
8 10 12 14
1 2 3 4 5 6 7
time (days)
(mg N/l)
Effluent total ammonia and limit value
8 10 12 14
12 14 16 18 20 22 24 26 28 30
time (days)
(mg/l)
Effluent suspended solids and limit value
8 10 12 14
3 4 5 6 7 8 9 10
time (days)
(mg/l)
Effluent BOD5 and limit value
8 10 12
1000 1500 2000 2500 3000 3500 4000 4500
time (days)
(kg/d)
Instantaneous sludge wastage rate
8 10 12
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
time (days)
(g/d)
Instantaneous Effluent Quality index
8 10 12
1500 2000 2500 3000 3500 4000
time (days)
(kWh/d)
Instantaneous pumping energy
8 10 12
5500 6000 6500 7000 7500 8000 8500
time (days)
(kWh/d)
Instantaneous aeration energy
)LJXUH
Effluent concentrations and corresponding effluent constraints, sludge wastage rate, effluent quality index and energy consumption during the second week when the influent file raininfluent is simulated.2WKHUHIIOXHQWTXDOLW\YDULDEOHV
Effluent Quality (E.Q.) index = 7368.6074 g/d
To compare: Influent Quality (I.Q.) index = 37649.0558 g/d, BOD5factor=0.25 To compare: Influent Quality (I.Q.) index = 42042.8148 g/d, BOD5factor=0.65 Sludge production for disposal = 17456.1143 kg
Average sludge production for disposal per day = 2493.7306 kg/d Sludge production released into effluent = 2937.6608 kg
Average sludge production released into effluent per day = 419.6658 kg/d Total sludge production = 20393.7751 kg
Total average sludge production per day = 2913.3964 kg/d
Aeration energy = 8104.431 kWh/d
Average pumping energy (for Qintr, Qr and Qw) = 3672.4334 kWh/d The maximum effluent ammonia nitrogen level (4 mg N/l) was violated during 1.1146 days, i.e. 15.9226% of the operating time.
The limit was violated at 6 different occasions.
3HUIRUPDQFHRIDFWLYHFRQWUROOHUVGXULQJGD\WR
1LWUDWHFRQWUROOHUIRUVHFRQGDQR[LFUHDFWRU
Integral of absolute error (IAE) = 1.5461 (mg N/l)*d Integral of square error (ISE) = 0.54539 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 1.0308 mg N/l Standard deviation of error = 0.27851 mg N/l
Variance of error = 0.077568 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Ext. carbon) = 2400000 gCOD/d Standard deviation of manipulated variable (Ext. carbon) = 95341.4182 gCOD/d
Variance of manipulated variable (Ext. carbon) = 9089986029.8848 (gCOD/d)^2
2[\JHQ VODYH FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 8.8869 (mg (-COD)/l)*d Integral of square error (ISE) = 19.6111 (mg (-COD)/l)^2*d
Maximum absolute deviation from oxygen setpoint = 3.4076 mg (-COD)/l Standard deviation of error = 1.122 mg (-COD)/l
Variance of error = 1.259 (mg (-COD)/l)^2
Maximum absolute variation of manipulated variable (max-min)(KLa) = 135.3802 1/d Standard deviation of manipulated variable (KLa) = 5.8666 1/d
Variance of manipulated variable (KLa) = 34.4165 (1/d)^2
$PPRQLXP PDVWHU FRQWUROOHUIRUODVWDHURELFUHDFWRU
Integral of absolute error (IAE) = 10.7763 (mg N/l)*d Integral of square error (ISE) = 37.5154 (mg N/l)^2*d
Maximum absolute deviation from ammonia setpoint = 8.14 mg N/l Standard deviation of error = 2.1013 mg N/l
Variance of error = 4.4156 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(SOref) = 2.8223 mg (-COD)/l Standard deviation of manipulated variable (SOref) = 0.057687 mg (-COD)/l
Variance of manipulated variable (SOref) = 0.0033278 (mg (-COD)/l)^2
1LWUDWHFRQWUROOHUIRUODVWUHDFWRU
Integral of absolute error (IAE) = 2.7979 (mg N/l)*d Integral of square error (ISE) = 1.869 (mg N/l)^2*d
Maximum absolute deviation from nitrate setpoint = 1.7506 mg N/l Standard deviation of error = 0.51672 mg N/l
Variance of error = 0.267 (mg N/l)^2
Maximum absolute variation of manipulated variable (max-min)(Qa) = 81531.217 m^3/d Standard deviation of manipulated variable (Qa) = 4464.0057 m^3/d
Variance of manipulated variable (Qa) = 19927346.7793 (m^3/d)^2
6OXGJHEODQNHWKHLJKWFRQWUROOHUIRUVHWWOHU
Integral of absolute error (IAE) = 4.1562 (nb)*d Integral of square error (ISE) = 5.7396 (nb)^2*d Maximum absolute deviation from layer setpoint = 2 nb Standard deviation of error = 0.84597 nb
Variance of error = 0.71567 (nb)^2
Maximum absolute variation of manipulated variable (max-min)(Qw) = 400 m^3/d Standard deviation of manipulated variable (Qw) = 4.2367 m^3/d
Variance of manipulated variable (Qw) = 17.95 (m^3/d)^2
*6WRUPLQIOXHQW
2YHUDOOSODQWSHUIRUPDQFHGXULQJGD\WR
(IIOXHQWDYHUDJHFRQFHQWUDWLRQVEDVHGRQORDG
Effluent average flow rate = 20685.7207 m3/d Effluent average SI conc = 26.3342 mg COD/l Effluent average SS conc = 0.98069 mg COD/l Effluent average XI conc = 5.6376 mg COD/l Effluent average XS conc = 0.30251 mg COD/l Effluent average XBH conc = 13.1962 mg COD/l Effluent average XBA conc = 0.60341 mg COD/l Effluent average XP conc = 2.5443 mg COD/l Effluent average SO conc = 2.9069 mg (-COD)/l Effluent average SNO conc = 5.9048 mg N/l
Effluent average SNH conc = 2.3138 mg N/l (limit = 4 mg N/l) Effluent average SND conc = 0.76047 mg N/l
Effluent average XND conc = 0.021611 mg N/l Effluent average SALK conc = 4.7652 mol HCO3/m3
Effluent average TSS conc = 16.713 mg/l (limit = 30 mg COD/l) Effluent average Kjeldahl N conc = 4.6907 mg N/l
Effluent average total N conc = 10.5956 mg N/l (limit = 18 mg COD/l) Effluent average total COD conc = 49.5989 mg COD/l (limit = 100 mg COD/l) Effluent average BOD5 conc = 3.4947 mg/l (limit = 10 mg/l)
(IIOXHQWDYHUDJHORDG
Effluent average SI load = 544.7417 kg COD/day Effluent average SS load = 20.2862 kg COD/day Effluent average XI load = 116.6181 kg COD/day Effluent average XS load = 6.2577 kg COD/day Effluent average XBH load = 272.9727 kg COD/day Effluent average XBA load = 12.4819 kg COD/day Effluent average XP load = 52.6309 kg COD/day Effluent average SO load = 60.1319 kg (-COD)/day Effluent average SNO load = 122.1459 kg N/day Effluent average SNH load = 47.862 kg N/day Effluent average SND load = 15.7309 kg N/day Effluent average XND load = 0.44705 kg N/day
Effluent average SALK load = 98.5707 kmol HCO3/day Effluent average TSS load = 345.7209 kg/day
Effluent average Kjeldahl N load = 97.0313 kg N/d Effluent average total N load = 219.1773 kg N/d Effluent average total COD load = 1025.9892 kg COD/d Effluent average BOD5 load = 72.2905 kg/d